feat: Kutser算法分块读写改造 + GUI标题更名为Mega Water
This commit is contained in:
@ -1,5 +1,4 @@
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import numpy as np
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# import preprocessing
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import os
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try:
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@ -8,306 +7,333 @@ try:
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except ImportError:
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GDAL_AVAILABLE = False
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class Kutser:
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def __init__(self, im_aligned, shp_path=None, oxy_band = 38,lower_oxy = 36, upper_oxy = 49, NIR_band = 47, water_mask=None, output_path=None):
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def __init__(self, img_path, shp_path=None, oxy_band=38, lower_oxy=36,
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upper_oxy=49, NIR_band=47, water_mask=None, output_path=None,
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block_size=1000):
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"""
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:param im_aligned (np.ndarray): band aligned and calibrated & corrected reflectance image
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:param shp_path (str, optional): path to shapefile (.shp) defining the region containing the glint region in deep water.
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If None, uses the entire image. The shapefile can use pixel coordinates or geographic coordinates.
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:param oxy_band (int): band index for oxygen absorption band, which corresponds to 760.6nm
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:param lower_oxy (int): band index for outside oxygen absorption band, which corresponds to 742.39nm
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:param upper_oxy (int): band index for outside oxygen absorption band, which corresponds to 860.48nm
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see Kutser, Vahtmäe and Praks
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:param water_mask (np.ndarray or str or None): 水域掩膜，1表示水域，0表示非水域
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可以是numpy数组、栅格文件路径(.dat/.tif)或shapefile路径(.shp)
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如果为None，则处理全图
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:param output_path (str or None): 输出文件路径，如果提供则保存校正后的图像
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如果为None，则不保存
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Kutser 耀斑去除算法 - 分块逐波段处理版本
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:param img_path (str): 输入影像文件路径（GDAL可读取的格式）
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:param shp_path (str, optional): 深水区域shapefile，已废弃，请使用water_mask
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:param oxy_band (int): 氧吸收波段索引（默认38，对应760.6nm）
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:param lower_oxy (int): 氧吸收下方波段索引（默认36，对应742.39nm）
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:param upper_oxy (int): 氧吸收上方波段索引（默认49，对应860.48nm）
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:param NIR_band (int): NIR波段索引（默认47，对应842.36nm）
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:param water_mask (np.ndarray or str or None): 水域掩膜
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:param output_path (str): 输出文件路径（必须提供，用于分块写入）
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:param block_size (int): 分块大小（默认1000）
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"""
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self.im_aligned = im_aligned
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self.bbox = self._read_shp_to_bbox(shp_path) if shp_path else None
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if not GDAL_AVAILABLE:
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raise ImportError("GDAL未安装，无法读取影像文件")
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self.img_path = img_path
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self.oxy_band = int(float(oxy_band))
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self.lower_oxy = int(float(lower_oxy))
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self.upper_oxy = int(float(upper_oxy))
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self.NIR_band = int(float(NIR_band))
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self.n_bands = im_aligned.shape[-1]
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self.height = im_aligned.shape[0]
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self.width = im_aligned.shape[1]
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self.water_mask = None # 延迟加载，在处理前初始化
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self.water_mask_path = water_mask
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self.output_path = output_path
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# 加载水域掩膜
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self.water_mask = self._load_water_mask(water_mask)
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# 使用ravel()而不是flatten()，避免不必要的复制
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# 如果存在水域掩膜，只在掩膜内计算R_min
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if self.water_mask is not None:
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nir_band_masked = self.im_aligned[:,:,self.NIR_band][self.water_mask.astype(bool)]
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self.R_min = np.percentile(nir_band_masked, 5, method='nearest') if nir_band_masked.size > 0 else 0
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else:
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self.R_min = np.percentile(self.im_aligned[:,:,self.NIR_band].ravel(), 5, method='nearest')
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def _read_shp_to_bbox(self, shp_path):
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"""
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读取shapefile并提取边界框
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:param shp_path (str): shapefile文件路径
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:return: tuple: ((x1,y1),(x2,y2)), where x1,y1 is the upper left corner, x2,y2 is the lower right corner
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"""
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if not os.path.exists(shp_path):
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raise FileNotFoundError(f"Shapefile not found: {shp_path}")
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try:
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try:
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import geopandas as gpd
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gdf = gpd.read_file(shp_path)
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# 获取所有几何体的总边界框
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bounds = gdf.total_bounds # [minx, miny, maxx, maxy]
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min_x, min_y, max_x, max_y = bounds
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except ImportError:
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# 如果geopandas不可用，尝试使用fiona
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import fiona
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from shapely.geometry import shape
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min_x = float('inf')
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min_y = float('inf')
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max_x = float('-inf')
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max_y = float('-inf')
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with fiona.open(shp_path) as shp:
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for feature in shp:
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geom = shape(feature['geometry'])
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if geom:
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bounds = geom.bounds
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min_x = min(min_x, bounds[0])
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min_y = min(min_y, bounds[1])
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max_x = max(max_x, bounds[2])
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max_y = max(max_y, bounds[3])
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# 转换为整数像素坐标
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x1 = max(0, int(min_x))
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y1 = max(0, int(min_y))
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x2 = min(self.im_aligned.shape[1], int(max_x) + 1)
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y2 = min(self.im_aligned.shape[0], int(max_y) + 1)
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return ((x1, y1), (x2, y2))
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except Exception as e:
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raise ValueError(f"Error reading shapefile {shp_path}: {e}")
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def _load_water_mask(self, water_mask):
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"""
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加载水域掩膜
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:param water_mask: 可以是None、numpy数组、文件路径(.dat/.tif)或shapefile路径(.shp)
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:return: numpy数组或None，1表示水域，0表示非水域
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"""
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if water_mask is None:
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return None
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# 如果已经是numpy数组
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if isinstance(water_mask, np.ndarray):
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if water_mask.shape[:2] != (self.height, self.width):
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raise ValueError(f"掩膜尺寸 {water_mask.shape[:2]} 与图像尺寸 {(self.height, self.width)} 不匹配")
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return (water_mask > 0).astype(np.uint8) # 确保是0/1掩膜
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# 如果是文件路径
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if isinstance(water_mask, str):
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try:
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from osgeo import gdal, ogr
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except ImportError:
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raise ValueError("使用文件路径作为掩膜时，必须安装GDAL")
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# 检查是否为shapefile
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if water_mask.lower().endswith('.shp'):
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# 从shp文件创建掩膜（需要参考图像，这里假设使用im_aligned的尺寸）
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# 注意：如果输入是numpy数组，无法从shp创建掩膜，需要提供栅格参考
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raise ValueError("Kutser类输入为numpy数组时，无法从shp文件创建掩膜。请先栅格化shp文件或提供numpy数组掩膜")
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else:
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# 栅格文件
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mask_dataset = gdal.Open(water_mask, gdal.GA_ReadOnly)
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if mask_dataset is None:
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raise ValueError(f"无法打开掩膜文件: {water_mask}")
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mask_array = mask_dataset.GetRasterBand(1).ReadAsArray()
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mask_dataset = None
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if mask_array.shape != (self.height, self.width):
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raise ValueError(f"掩膜尺寸 {mask_array.shape} 与图像尺寸 {(self.height, self.width)} 不匹配")
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return (mask_array > 0).astype(np.uint8)
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raise ValueError(f"不支持的掩膜类型: {type(water_mask)}")
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def get_depth_D(self):
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"""
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Assume the amount of glint is proportional to the depth of the oxygen absorption feature, D
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returns the normalised D by dividing it by the maximum D found in a deep water region
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"""
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# 优化：减少中间数组创建，使用更高效的计算
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lower_oxy_band = self.im_aligned[:,:,self.lower_oxy]
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upper_oxy_band = self.im_aligned[:,:,self.upper_oxy]
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oxy_band = self.im_aligned[:,:,self.oxy_band]
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D = (lower_oxy_band + upper_oxy_band) * 0.5 - oxy_band
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# 确定用于计算D_max的区域
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if self.bbox is None:
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search_region = D
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else:
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((x1,y1),(x2,y2)) = self.bbox
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search_region = D[y1:y2,x1:x2]
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# 如果存在水域掩膜，只在掩膜内搜索最大值
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if self.water_mask is not None:
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if self.bbox is None:
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mask_region = self.water_mask.astype(bool)
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else:
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((x1,y1),(x2,y2)) = self.bbox
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mask_region = self.water_mask[y1:y2,x1:x2].astype(bool)
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if mask_region.any():
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D_max = search_region[mask_region].max()
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else:
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D_max = search_region.max()
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else:
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D_max = search_region.max() # assumed to be the maximum glint value
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# 避免除零错误
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if D_max == 0:
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return np.zeros_like(D)
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return D / D_max
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def get_glint_G(self):
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"""
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The spectral variation of glint G is found by subtracting the spectrum at the darkest (ie. lowest D) NIR deep-water pixel from the brightest
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returns G as a function of wavelength
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"""
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# If bbox is None, use the entire image
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if self.bbox is None:
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im_region = self.im_aligned
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mask_region = self.water_mask
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else:
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((x1,y1),(x2,y2)) = self.bbox
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im_region = self.im_aligned[y1:y2,x1:x2,:]
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mask_region = self.water_mask[y1:y2,x1:x2] if self.water_mask is not None else None
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self.block_size = block_size
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self.R_min = None # 全局R_min（来自重采样扫描）
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self.D_max = None # 全局D_max（来自重采样扫描）
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self.G_list = None # 全局G值列表
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# 如果存在水域掩膜，只在掩膜内计算最大最小值
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if mask_region is not None:
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mask_bool = mask_region.astype(bool)
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if mask_bool.any():
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# 对每个波段，只在掩膜内计算最大最小值
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G_list = []
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for i in range(self.n_bands):
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band_data = im_region[:,:,i]
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G_max = band_data[mask_bool].max()
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G_min = band_data[mask_bool].min()
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G_list.append(G_max - G_min)
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# 打开影像获取基本信息
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self.dataset = gdal.Open(img_path, gdal.GA_ReadOnly)
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if self.dataset is None:
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raise ValueError(f"无法打开影像文件: {img_path}")
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self.width = self.dataset.RasterXSize
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self.height = self.dataset.RasterYSize
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self.n_bands = self.dataset.RasterCount
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def _load_water_mask(self):
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"""延迟加载水域掩膜"""
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if self.water_mask_path is None:
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return None
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if isinstance(self.water_mask_path, np.ndarray):
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if self.water_mask_path.shape[:2] != (self.height, self.width):
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raise ValueError(
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f"掩膜尺寸 {self.water_mask_path.shape[:2]} 与图像尺寸 {(self.height, self.width)} 不匹配"
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)
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return (self.water_mask_path > 0).astype(np.uint8)
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if isinstance(self.water_mask_path, str):
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if self.water_mask_path.lower().endswith('.shp'):
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raise ValueError("请先栅格化shapefile为栅格掩膜文件")
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mask_dataset = gdal.Open(self.water_mask_path, gdal.GA_ReadOnly)
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if mask_dataset is None:
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raise ValueError(f"无法打开掩膜文件: {self.water_mask_path}")
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mask_array = mask_dataset.GetRasterBand(1).ReadAsArray()
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mask_dataset = None
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if mask_array.shape != (self.height, self.width):
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raise ValueError(
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f"掩膜尺寸 {mask_array.shape} 与图像尺寸 {(self.height, self.width)} 不匹配"
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)
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return (mask_array > 0).astype(np.uint8)
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return None
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def _scan_global_stats(self, sample_step=20):
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"""
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通过重采样扫描获取全图全局统计量：R_min 和 D_max
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分块读取，按sample_step跳行/跳列采样，大幅降低内存占用。
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内存峰值 ≈ 单波段块大小 + 几个掩膜数组 ≈ block_size² × 4~8MB
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"""
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print(f"[Kutser] 扫描全局统计量（采样步长={sample_step}）...")
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water_mask = self._load_water_mask()
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# 预分配采样数组（NIR波段和D值）
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nir_samples = []
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d_samples = []
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sample_count = 0
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for y_off in range(0, self.height, self.block_size):
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y_end = min(y_off + self.block_size, self.height)
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block_height = y_end - y_off
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# 读取NIR波段（用于R_min）
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nir_band = self.dataset.GetRasterBand(self.NIR_band + 1)
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nir_block = nir_band.ReadAsArray(0, y_off, self.width, block_height)
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nir_band = None
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# 读取氧吸收相关波段（用于D_max）
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lower_band = self.dataset.GetRasterBand(self.lower_oxy + 1)
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lower_block = lower_band.ReadAsArray(0, y_off, self.width, block_height)
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lower_band = None
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upper_band = self.dataset.GetRasterBand(self.upper_oxy + 1)
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upper_block = upper_band.ReadAsArray(0, y_off, self.width, block_height)
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upper_band = None
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oxy_band_obj = self.dataset.GetRasterBand(self.oxy_band + 1)
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oxy_block = oxy_band_obj.ReadAsArray(0, y_off, self.width, block_height)
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oxy_band_obj = None
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# 计算D = (lower + upper) * 0.5 - oxy
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d_block = (lower_block.astype(np.float32) + upper_block.astype(np.float32)) * 0.5 - oxy_block.astype(np.float32)
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# 获取掩膜（整块）
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if water_mask is not None:
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mask_block = water_mask[y_off:y_end, :]
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else:
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# 如果掩膜内没有有效像素，使用全区域
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G_max = np.amax(im_region, axis=(0, 1))
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G_min = np.amin(im_region, axis=(0, 1))
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G_list = (G_max - G_min).tolist()
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mask_block = np.ones((block_height, self.width), dtype=np.uint8)
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# 对掩膜区域进行采样
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mask_bool = mask_block.astype(bool)
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if mask_bool.any():
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# 按步长采样
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nir_sampled = nir_block[mask_bool][::sample_step]
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d_sampled = d_block[mask_bool][::sample_step]
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nir_samples.append(nir_sampled)
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d_samples.append(d_sampled)
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sample_count += nir_sampled.size
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# 显式释放块内存
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del nir_block, lower_block, upper_block, oxy_block, d_block, mask_block
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# 汇总
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if sample_count == 0:
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self.R_min = 0.0
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self.D_max = 1.0
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else:
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# 优化：一次性计算所有波段的最大最小值，减少循环开销
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# 使用numpy的amax和amin沿最后一个轴计算
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G_max = np.amax(im_region, axis=(0, 1)) # 沿空间维度计算最大值
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G_min = np.amin(im_region, axis=(0, 1)) # 沿空间维度计算最小值
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G_list = (G_max - G_min).tolist()
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return G_list
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def _save_corrected_bands(self, corrected_bands):
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all_nir = np.concatenate(nir_samples)
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all_d = np.concatenate(d_samples)
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self.R_min = float(np.percentile(all_nir, 5, method='nearest'))
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self.D_max = float(all_d.max())
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del all_nir, all_d
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print(f"[Kutser] 全局 R_min={self.R_min:.4f}, D_max={self.D_max:.4f}")
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def _compute_G_list(self):
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"""
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保存校正后的波段到文件（BSQ格式，ENVI格式）
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:param corrected_bands: 校正后的波段列表
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计算全局G值列表（每个波段）
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G = G_max - G_min（所有水域像素的极值差异）
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使用全分辨率扫描，但逐波段读取，每波段内存 ≈ block_size²
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"""
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if not GDAL_AVAILABLE:
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raise ImportError("GDAL未安装，无法保存影像文件")
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if self.output_path is None:
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return
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# 确保输出目录存在
|
||||
output_dir = os.path.dirname(self.output_path)
|
||||
if output_dir and not os.path.exists(output_dir):
|
||||
os.makedirs(output_dir, exist_ok=True)
|
||||
|
||||
# 将波段列表转换为数组
|
||||
corrected_array = np.stack(corrected_bands, axis=2)
|
||||
|
||||
# 如果没有地理信息，使用默认值
|
||||
geotransform = (0, 1, 0, 0, 0, -1)
|
||||
projection = ""
|
||||
|
||||
# 强制使用ENVI格式（BSQ格式），确保文件扩展名为.bsq
|
||||
base_path, ext = os.path.splitext(self.output_path)
|
||||
# 如果扩展名不是.bsq，使用基础路径添加.bsq
|
||||
if ext.lower() != '.bsq':
|
||||
bsq_path = base_path + '.bsq'
|
||||
print(f"[Kutser] 计算全局G值列表（n_bands={self.n_bands}）...")
|
||||
water_mask = self._load_water_mask()
|
||||
|
||||
# 初始化G_max和G_min为极值
|
||||
g_max = np.full(self.n_bands, -np.inf, dtype=np.float32)
|
||||
g_min = np.full(self.n_bands, np.inf, dtype=np.float32)
|
||||
|
||||
# 逐块扫描
|
||||
for y_off in range(0, self.height, self.block_size):
|
||||
y_end = min(y_off + self.block_size, self.height)
|
||||
block_height = y_end - y_off
|
||||
|
||||
# 读取所有波段的当前块
|
||||
for b in range(self.n_bands):
|
||||
band = self.dataset.GetRasterBand(b + 1)
|
||||
block = band.ReadAsArray(0, y_off, self.width, block_height).astype(np.float32)
|
||||
band = None
|
||||
|
||||
if water_mask is not None:
|
||||
mask_block = water_mask[y_off:y_end, :]
|
||||
mask_bool = mask_block.astype(bool)
|
||||
if mask_bool.any():
|
||||
band_masked = block[mask_bool]
|
||||
g_max[b] = max(g_max[b], band_masked.max())
|
||||
g_min[b] = min(g_min[b], band_masked.min())
|
||||
else:
|
||||
g_max[b] = max(g_max[b], block.max())
|
||||
g_min[b] = min(g_min[b], block.min())
|
||||
|
||||
del block
|
||||
|
||||
self.G_list = (g_max - g_min).tolist()
|
||||
print(f"[Kutser] G值范围: min={min(self.G_list):.4f}, max={max(self.G_list):.4f}")
|
||||
|
||||
def _process_block(self, x_off, y_off, x_size, y_size):
|
||||
"""
|
||||
处理单个分块：读取数据 -> 计算D -> 逐波段校正 -> 返回块结果
|
||||
|
||||
Returns:
|
||||
list of np.ndarray: 校正后的波段列表（每波段形状为 y_size x x_size）
|
||||
"""
|
||||
# 读取氧吸收相关波段
|
||||
lower_band = self.dataset.GetRasterBand(self.lower_oxy + 1)
|
||||
lower_block = lower_band.ReadAsArray(x_off, y_off, x_size, y_size).astype(np.float32)
|
||||
lower_band = None
|
||||
|
||||
upper_band = self.dataset.GetRasterBand(self.upper_oxy + 1)
|
||||
upper_block = upper_band.ReadAsArray(x_off, y_off, x_size, y_size).astype(np.float32)
|
||||
upper_band = None
|
||||
|
||||
oxy_band_obj = self.dataset.GetRasterBand(self.oxy_band + 1)
|
||||
oxy_block = oxy_band_obj.ReadAsArray(x_off, y_off, x_size, y_size).astype(np.float32)
|
||||
oxy_band_obj = None
|
||||
|
||||
# 计算D
|
||||
D = (lower_block + upper_block) * 0.5 - oxy_block
|
||||
|
||||
# 避免除零
|
||||
if self.D_max == 0:
|
||||
D_normalized = np.zeros_like(D)
|
||||
else:
|
||||
bsq_path = self.output_path
|
||||
|
||||
# 使用ENVI驱动（默认就是BSQ格式）
|
||||
driver = gdal.GetDriverByName('ENVI')
|
||||
if driver is None:
|
||||
raise ValueError("无法创建ENVI格式文件，ENVI驱动不可用")
|
||||
|
||||
height, width, n_bands = corrected_array.shape
|
||||
# 创建ENVI格式数据集（会自动生成.hdr文件）
|
||||
dataset = driver.Create(bsq_path, width, height, n_bands, gdal.GDT_Float32)
|
||||
if dataset is None:
|
||||
raise ValueError(f"无法创建输出文件: {bsq_path}")
|
||||
|
||||
try:
|
||||
# 设置地理变换和投影
|
||||
if geotransform:
|
||||
dataset.SetGeoTransform(geotransform)
|
||||
if projection:
|
||||
dataset.SetProjection(projection)
|
||||
|
||||
# 写入每个波段（BSQ格式：按波段顺序存储）
|
||||
for i in range(n_bands):
|
||||
band = dataset.GetRasterBand(i + 1)
|
||||
band.WriteArray(corrected_array[:, :, i])
|
||||
band.FlushCache()
|
||||
finally:
|
||||
dataset = None
|
||||
|
||||
# 检查.hdr文件是否已创建
|
||||
hdr_path = bsq_path + '.hdr'
|
||||
if os.path.exists(hdr_path):
|
||||
print(f"校正后的图像已保存至: {bsq_path} (BSQ格式)")
|
||||
print(f"头文件已保存至: {hdr_path}")
|
||||
D_normalized = D / self.D_max
|
||||
|
||||
# 释放临时块
|
||||
del lower_block, upper_block, oxy_block, D
|
||||
|
||||
# 获取当前块的水域掩膜
|
||||
water_mask = self._load_water_mask()
|
||||
if water_mask is not None:
|
||||
y_end = y_off + y_size
|
||||
x_end = x_off + x_size
|
||||
mask_block = water_mask[y_off:y_end, x_off:x_end].astype(bool)
|
||||
else:
|
||||
print(f"校正后的图像已保存至: {bsq_path} (BSQ格式)")
|
||||
print(f"警告: 未检测到.hdr文件，但GDAL应该已自动创建")
|
||||
mask_block = None
|
||||
|
||||
# 逐波段处理
|
||||
corrected_bands = []
|
||||
for b in range(self.n_bands):
|
||||
band = self.dataset.GetRasterBand(b + 1)
|
||||
R = band.ReadAsArray(x_off, y_off, x_size, y_size).astype(np.float32)
|
||||
band = None
|
||||
|
||||
G = self.G_list[b]
|
||||
# 校正公式：R_corrected = R - G * D_normalized
|
||||
corrected = R - G * D_normalized
|
||||
|
||||
# 只对水域区域应用校正
|
||||
if mask_block is not None:
|
||||
corrected = np.where(mask_block, corrected, R)
|
||||
|
||||
corrected_bands.append(corrected)
|
||||
del R
|
||||
|
||||
# 释放D块
|
||||
del D_normalized
|
||||
|
||||
return corrected_bands
|
||||
|
||||
def get_corrected_bands(self):
|
||||
"""
|
||||
correction is done in reflectance
|
||||
|
||||
:return: 校正后的波段列表
|
||||
"""
|
||||
g_list = self.get_glint_G()
|
||||
D = self.get_depth_D()
|
||||
|
||||
# 获取水域掩膜（如果存在）
|
||||
water_mask_bool = self.water_mask.astype(bool) if self.water_mask is not None else None
|
||||
执行分块处理，返回校正后的波段列表
|
||||
|
||||
corrected_bands = []
|
||||
for band_number in range(self.n_bands): #iterate across bands
|
||||
G = g_list[band_number]
|
||||
R = self.im_aligned[:,:,band_number]
|
||||
# 优化：减少中间数组创建，直接计算
|
||||
corrected_band = R - G * D
|
||||
|
||||
# 如果存在水域掩膜，只对水域区域应用校正
|
||||
if water_mask_bool is not None:
|
||||
corrected_band = np.where(water_mask_bool, corrected_band, R)
|
||||
|
||||
corrected_bands.append(corrected_band)
|
||||
|
||||
# 如果提供了输出路径，保存结果
|
||||
if self.output_path is not None:
|
||||
self._save_corrected_bands(corrected_bands)
|
||||
|
||||
return corrected_bands
|
||||
内存峰值 ≈ 单波段块大小 + 几个辅助数组 ≈ 1000×1000×4B × 3 ≈ 12MB
|
||||
"""
|
||||
if self.output_path is None:
|
||||
raise ValueError("output_path 必须提供，分块处理需要直接写入文件")
|
||||
|
||||
# Step 1: 扫描全局统计量（R_min, D_max）
|
||||
self._scan_global_stats(sample_step=20)
|
||||
|
||||
# Step 2: 计算全局G列表
|
||||
self._compute_G_list()
|
||||
|
||||
# Step 3: 创建输出文件
|
||||
output_dir = os.path.dirname(self.output_path)
|
||||
if output_dir and not os.path.exists(output_dir):
|
||||
os.makedirs(output_dir, exist_ok=True)
|
||||
|
||||
base_path, ext = os.path.splitext(self.output_path)
|
||||
bsq_path = base_path + '.bsq' if ext.lower() != '.bsq' else self.output_path
|
||||
|
||||
# 获取地理信息
|
||||
geotransform = self.dataset.GetGeoTransform()
|
||||
projection = self.dataset.GetProjection()
|
||||
|
||||
driver = gdal.GetDriverByName('ENVI')
|
||||
out_dataset = driver.Create(bsq_path, self.width, self.height,
|
||||
self.n_bands, gdal.GDT_Float32)
|
||||
if out_dataset is None:
|
||||
raise ValueError(f"无法创建输出文件: {bsq_path}")
|
||||
|
||||
out_dataset.SetGeoTransform(geotransform)
|
||||
out_dataset.SetProjection(projection)
|
||||
|
||||
# Step 4: 分块处理
|
||||
n_blocks_x = (self.width + self.block_size - 1) // self.block_size
|
||||
n_blocks_y = (self.height + self.block_size - 1) // self.block_size
|
||||
total_blocks = n_blocks_x * n_blocks_y
|
||||
|
||||
print(f"[Kutser] 开始分块处理，共 {total_blocks} 块 ({n_blocks_x}×{n_blocks_y})，块大小={self.block_size}")
|
||||
|
||||
block_idx = 0
|
||||
for y_off in range(0, self.height, self.block_size):
|
||||
y_end = min(y_off + self.block_size, self.height)
|
||||
y_size = y_end - y_off
|
||||
|
||||
for x_off in range(0, self.width, self.block_size):
|
||||
x_end = min(x_off + self.block_size, self.width)
|
||||
x_size = x_end - x_off
|
||||
block_idx += 1
|
||||
|
||||
print(f"[Kutser] 处理块 {block_idx}/{total_blocks} (y={y_off}, x={x_off})")
|
||||
|
||||
# 处理当前块
|
||||
corrected_bands = self._process_block(x_off, y_off, x_size, y_size)
|
||||
|
||||
# 写入输出文件
|
||||
for b in range(self.n_bands):
|
||||
out_band = out_dataset.GetRasterBand(b + 1)
|
||||
out_band.WriteArray(corrected_bands[b], x_off, y_off)
|
||||
out_band.FlushCache()
|
||||
|
||||
del corrected_bands
|
||||
|
||||
out_dataset = None
|
||||
self.dataset = None
|
||||
|
||||
# 检查.hdr文件
|
||||
hdr_path = bsq_path + '.hdr'
|
||||
if os.path.exists(hdr_path):
|
||||
print(f"[Kutser] 校正完成，已保存至: {bsq_path}")
|
||||
else:
|
||||
print(f"[Kutser] 校正完成，已保存至: {bsq_path}（警告: 未检测到.hdr文件）")
|
||||
|
||||
# 返回空列表（结果已直接写入文件）
|
||||
return []
|
||||
|
||||
def __del__(self):
|
||||
if self.dataset is not None:
|
||||
self.dataset = None
|
||||
@ -1718,256 +1718,163 @@ class WaterQualityInversionPipeline:
|
||||
interp_end_time = time.time()
|
||||
self._record_step_time("步骤3.1: 0值像素插值", interp_start_time, interp_end_time,
|
||||
status="failed", error=str(e))
|
||||
|
||||
|
||||
if method == "kutser":
|
||||
print(f"使用方法: Kutser (氧吸收波段={oxy_band}, NIR波段={nir_band})")
|
||||
|
||||
# 确定输出路径
|
||||
|
||||
output_path = str(self.deglint_dir / "deglint_kutser.bsq")
|
||||
|
||||
# 检查文件是否已存在
|
||||
bsq_path = output_path if output_path.endswith('.bsq') else output_path.replace('.dat', '.bsq').replace('.tif', '.bsq')
|
||||
bsq_path = output_path if output_path.endswith('.bsq') else output_path.replace('.dat', '.bsq').replace(
|
||||
'.tif', '.bsq')
|
||||
if Path(bsq_path).exists() or Path(output_path).exists():
|
||||
existing_path = bsq_path if Path(bsq_path).exists() else output_path
|
||||
print(f"检测到已存在的去耀斑影像文件，直接使用: {existing_path}")
|
||||
self.deglint_img_path = existing_path
|
||||
step_end_time = time.time()
|
||||
self._record_step_time("步骤3: 去除耀斑", step_start_time, step_end_time, status="skipped")
|
||||
self._record_step_time("步骤3: 去除耀斑", step_start_time, time.time(), status="skipped")
|
||||
print(f"去耀斑影像已设置: {self.deglint_img_path}")
|
||||
return self.deglint_img_path
|
||||
|
||||
# 获取地理信息（不加载图像数据）
|
||||
|
||||
geotransform, projection, width, height, n_bands = self._get_image_geo_info(img_path)
|
||||
print(f"影像尺寸: {width} x {height} x {n_bands}")
|
||||
|
||||
|
||||
# 加载影像数据（Kutser算法需要numpy数组）
|
||||
image_array, geotransform, projection = self._load_image_as_array(img_path)
|
||||
print(f"影像尺寸: {image_array.shape}")
|
||||
|
||||
# 处理水域掩膜
|
||||
mask_for_algorithm = self._prepare_water_mask_for_algorithm(
|
||||
final_water_mask, image_array.shape, geotransform, projection, img_path
|
||||
final_water_mask, (height, width), geotransform, projection, img_path
|
||||
)
|
||||
|
||||
# 应用Kutser算法：传递numpy数组
|
||||
# 注意：kutser_shp_path参数已废弃，使用water_mask代替
|
||||
kutser = Kutser(image_array, shp_path=None,
|
||||
oxy_band=oxy_band, lower_oxy=lower_oxy,
|
||||
upper_oxy=upper_oxy, NIR_band=nir_band,
|
||||
water_mask=mask_for_algorithm, output_path=output_path)
|
||||
corrected_bands = kutser.get_corrected_bands()
|
||||
|
||||
# 检查算法类是否已保存文件（可能保存为.bsq格式）
|
||||
bsq_path = output_path if output_path.endswith('.bsq') else output_path.replace('.dat', '.bsq').replace('.tif', '.bsq')
|
||||
if not Path(bsq_path).exists() and not Path(output_path).exists():
|
||||
# 如果算法类没有保存，使用pipeline的保存方法
|
||||
self._save_bands_as_image(corrected_bands, output_path, geotransform, projection)
|
||||
self.deglint_img_path = output_path
|
||||
# 复制原始hdr文件信息
|
||||
self._copy_hdr_info(img_path, output_path)
|
||||
else:
|
||||
# 算法类已保存，使用算法类保存的路径
|
||||
kutser = Kutser(img_path, shp_path=None, oxy_band=oxy_band,
|
||||
lower_oxy=lower_oxy, upper_oxy=upper_oxy,
|
||||
NIR_band=nir_band, water_mask=mask_for_algorithm,
|
||||
output_path=output_path)
|
||||
kutser.get_corrected_bands()
|
||||
|
||||
if Path(bsq_path).exists() or Path(output_path).exists():
|
||||
self.deglint_img_path = bsq_path if Path(bsq_path).exists() else output_path
|
||||
# 复制原始hdr文件信息
|
||||
self._copy_hdr_info(img_path, self.deglint_img_path)
|
||||
|
||||
# 保存后显式清理，帮助释放内存
|
||||
del corrected_bands
|
||||
|
||||
else:
|
||||
raise RuntimeError(f"Kutser算法未生成输出文件: {bsq_path}")
|
||||
|
||||
elif method == "goodman":
|
||||
print(f"使用方法: Goodman (NIR波段范围: {nir_lower}-{nir_upper})")
|
||||
|
||||
# 确定输出路径
|
||||
output_path = str(self.deglint_dir / "deglint_goodman.bsq")
|
||||
|
||||
# 检查文件是否已存在
|
||||
bsq_path = output_path if output_path.endswith('.bsq') else output_path.replace('.dat', '.bsq').replace('.tif', '.bsq')
|
||||
bsq_path = output_path if output_path.endswith('.bsq') else output_path.replace('.dat', '.bsq').replace(
|
||||
'.tif', '.bsq')
|
||||
if Path(bsq_path).exists() or Path(output_path).exists():
|
||||
existing_path = bsq_path if Path(bsq_path).exists() else output_path
|
||||
print(f"检测到已存在的去耀斑影像文件，直接使用: {existing_path}")
|
||||
self.deglint_img_path = existing_path
|
||||
step_end_time = time.time()
|
||||
self._record_step_time("步骤3: 去除耀斑", step_start_time, step_end_time, status="skipped")
|
||||
print(f"去耀斑影像已设置: {self.deglint_img_path}")
|
||||
self._record_step_time("步骤3: 去除耀斑", step_start_time, time.time(), status="skipped")
|
||||
return self.deglint_img_path
|
||||
|
||||
# 获取地理信息（不加载图像数据）
|
||||
geotransform, projection, width, height, n_bands = self._get_image_geo_info(img_path)
|
||||
print(f"影像尺寸: {width} x {height} x {n_bands}")
|
||||
|
||||
# 处理水域掩膜：如果是shp文件路径，需要栅格化
|
||||
# 创建一个临时数组用于获取尺寸信息（仅用于掩膜处理）
|
||||
temp_shape = (height, width)
|
||||
mask_for_algorithm = self._prepare_water_mask_for_algorithm(
|
||||
final_water_mask, temp_shape, geotransform, projection, img_path
|
||||
)
|
||||
|
||||
# 加载影像数据（Goodman算法需要numpy数组用于后插值）
|
||||
image_array, geotransform, projection = self._load_image_as_array(img_path)
|
||||
print(f"影像尺寸: {image_array.shape}")
|
||||
|
||||
# 应用Goodman算法：传递文件路径
|
||||
geotransform, projection, width, height, n_bands = self._get_image_geo_info(img_path)
|
||||
mask_for_algorithm = self._prepare_water_mask_for_algorithm(
|
||||
final_water_mask, (height, width), geotransform, projection, img_path
|
||||
)
|
||||
|
||||
image_array, geotransform, projection = self._load_image_as_array(img_path)
|
||||
goodman = Goodman(img_path, NIR_lower=nir_lower, NIR_upper=nir_upper,
|
||||
A=goodman_A, B=goodman_B, water_mask=mask_for_algorithm,
|
||||
output_path=output_path) # 传递output_path，算法类会保存
|
||||
A=goodman_A, B=goodman_B, water_mask=mask_for_algorithm,
|
||||
output_path=output_path)
|
||||
corrected_bands = goodman.get_corrected_bands()
|
||||
|
||||
# 检查算法类是否已保存文件（可能保存为.bsq格式）
|
||||
bsq_path = output_path if output_path.endswith('.bsq') else output_path.replace('.dat', '.bsq').replace('.tif', '.bsq')
|
||||
|
||||
if not Path(bsq_path).exists() and not Path(output_path).exists():
|
||||
# 如果算法类没有保存，使用pipeline的保存方法
|
||||
self._save_bands_as_image(corrected_bands, output_path, geotransform, projection)
|
||||
self.deglint_img_path = output_path
|
||||
# 复制原始hdr文件信息
|
||||
self._copy_hdr_info(img_path, output_path)
|
||||
else:
|
||||
# 算法类已保存，使用算法类保存的路径
|
||||
self.deglint_img_path = bsq_path if Path(bsq_path).exists() else output_path
|
||||
# 复制原始hdr文件信息
|
||||
self._copy_hdr_info(img_path, self.deglint_img_path)
|
||||
|
||||
# 保存后显式清理，帮助释放内存
|
||||
del corrected_bands
|
||||
|
||||
|
||||
elif method == "hedley":
|
||||
print(f"使用方法: Hedley (NIR波段={hedley_nir_band})")
|
||||
|
||||
# 确定输出路径
|
||||
output_path = str(self.deglint_dir / "deglint_hedley.bsq")
|
||||
|
||||
# 检查文件是否已存在
|
||||
bsq_path = output_path if output_path.endswith('.bsq') else output_path.replace('.dat', '.bsq').replace('.tif', '.bsq')
|
||||
bsq_path = output_path if output_path.endswith('.bsq') else output_path.replace('.dat', '.bsq').replace(
|
||||
'.tif', '.bsq')
|
||||
if Path(bsq_path).exists() or Path(output_path).exists():
|
||||
existing_path = bsq_path if Path(bsq_path).exists() else output_path
|
||||
print(f"检测到已存在的去耀斑影像文件，直接使用: {existing_path}")
|
||||
self.deglint_img_path = existing_path
|
||||
step_end_time = time.time()
|
||||
self._record_step_time("步骤3: 去除耀斑", step_start_time, step_end_time, status="skipped")
|
||||
print(f"去耀斑影像已设置: {self.deglint_img_path}")
|
||||
self._record_step_time("步骤3: 去除耀斑", step_start_time, time.time(), status="skipped")
|
||||
return self.deglint_img_path
|
||||
|
||||
# 获取地理信息（不加载图像数据）
|
||||
geotransform, projection, width, height, n_bands = self._get_image_geo_info(img_path)
|
||||
print(f"影像尺寸: {width} x {height} x {n_bands}")
|
||||
|
||||
|
||||
# 加载影像数据（Hedley算法需要numpy数组）
|
||||
image_array, geotransform, projection = self._load_image_as_array(img_path)
|
||||
print(f"影像尺寸: {image_array.shape}")
|
||||
|
||||
# 处理水域掩膜
|
||||
geotransform, projection, width, height, n_bands = self._get_image_geo_info(img_path)
|
||||
mask_for_algorithm = self._prepare_water_mask_for_algorithm(
|
||||
final_water_mask, image_array.shape, geotransform, projection, img_path
|
||||
final_water_mask, (height, width), geotransform, projection, img_path
|
||||
)
|
||||
|
||||
# 应用Hedley算法：传递numpy数组
|
||||
# 注意：hedley_shp_path参数已废弃，使用water_mask代替
|
||||
hedley = Hedley(image_array, shp_path=None,
|
||||
NIR_band=hedley_nir_band, water_mask=mask_for_algorithm,
|
||||
output_path=output_path)
|
||||
corrected_bands = hedley.get_corrected_bands()
|
||||
|
||||
# 检查算法类是否已保存文件（可能保存为.bsq格式）
|
||||
bsq_path = output_path if output_path.endswith('.bsq') else output_path.replace('.dat', '.bsq').replace('.tif', '.bsq')
|
||||
if not Path(bsq_path).exists() and not Path(output_path).exists():
|
||||
# 如果算法类没有保存，使用pipeline的保存方法
|
||||
self._save_bands_as_image(corrected_bands, output_path, geotransform, projection)
|
||||
self.deglint_img_path = output_path
|
||||
# 复制原始hdr文件信息
|
||||
self._copy_hdr_info(img_path, output_path)
|
||||
else:
|
||||
# 算法类已保存，使用算法类保存的路径
|
||||
hedley = Hedley(img_path, shp_path=None, NIR_band=hedley_nir_band,
|
||||
water_mask=mask_for_algorithm, output_path=output_path)
|
||||
hedley.get_corrected_bands()
|
||||
|
||||
if Path(bsq_path).exists() or Path(output_path).exists():
|
||||
self.deglint_img_path = bsq_path if Path(bsq_path).exists() else output_path
|
||||
# 复制原始hdr文件信息
|
||||
self._copy_hdr_info(img_path, self.deglint_img_path)
|
||||
|
||||
# 保存后显式清理，帮助释放内存
|
||||
del corrected_bands
|
||||
|
||||
else:
|
||||
raise RuntimeError(f"Hedley算法未生成输出文件: {bsq_path}")
|
||||
|
||||
elif method == "sugar":
|
||||
# 强行转换暗号，兼容中文和各种格式
|
||||
sugar_glint_mask_method_raw = str(sugar_glint_mask_method).lower()
|
||||
if 'cdf' in sugar_glint_mask_method_raw or '累积' in sugar_glint_mask_method:
|
||||
sugar_glint_mask_method_fixed = 'cdf'
|
||||
elif 'otsu' in sugar_glint_mask_method_raw or '大津' in sugar_glint_mask_method:
|
||||
sugar_glint_mask_method_fixed = 'otsu'
|
||||
else:
|
||||
# 默认回退到 cdf 确保不崩溃
|
||||
sugar_glint_mask_method_fixed = 'cdf'
|
||||
|
||||
print(f"使用方法: SUGAR (迭代次数={sugar_iter}, 掩膜方法={sugar_glint_mask_method_fixed})")
|
||||
|
||||
# 确定输出路径
|
||||
output_path = str(self.deglint_dir / "deglint_sugar.bsq")
|
||||
|
||||
# 检查文件是否已存在
|
||||
|
||||
if Path(output_path).exists():
|
||||
print(f"检测到已存在的去耀斑影像文件，直接使用: {output_path}")
|
||||
self.deglint_img_path = output_path
|
||||
step_end_time = time.time()
|
||||
self._record_step_time("步骤3: 去除耀斑", step_start_time, step_end_time, status="skipped")
|
||||
print(f"去耀斑影像已设置: {self.deglint_img_path}")
|
||||
self._record_step_time("步骤3: 去除耀斑", step_start_time, time.time(), status="skipped")
|
||||
return self.deglint_img_path
|
||||
|
||||
# 加载影像
|
||||
image_array, geotransform, projection = self._load_image_as_array(img_path)
|
||||
print(f"影像尺寸: {image_array.shape}")
|
||||
|
||||
# 处理水域掩膜：如果是shp文件路径，需要栅格化
|
||||
|
||||
geotransform, projection, width, height, n_bands = self._get_image_geo_info(img_path)
|
||||
|
||||
# 修复BUG：必须传入 (height, width)
|
||||
mask_for_algorithm = self._prepare_water_mask_for_algorithm(
|
||||
final_water_mask, image_array, geotransform, projection, img_path
|
||||
final_water_mask, (height, width), geotransform, projection, img_path
|
||||
)
|
||||
|
||||
# 设置默认bounds
|
||||
|
||||
if sugar_bounds is None:
|
||||
sugar_bounds = [(1, 2)]
|
||||
|
||||
# 应用SUGAR算法
|
||||
# 传递output_path给correction_iterative函数，但函数传入数组时无法获取地理信息，所以仍使用pipeline的保存方法
|
||||
|
||||
if sugar_iter is None:
|
||||
# 使用自动终止
|
||||
corrected_images = correction_iterative(
|
||||
image_array, iter=None, bounds=sugar_bounds,
|
||||
correction_iterative(
|
||||
img_path, iter=None, bounds=sugar_bounds,
|
||||
estimate_background=sugar_estimate_background,
|
||||
glint_mask_method=sugar_glint_mask_method_fixed,
|
||||
termination_thresh=sugar_termination_thresh,
|
||||
water_mask=mask_for_algorithm,
|
||||
output_path=None # 不传递output_path，使用pipeline保存
|
||||
output_path=output_path
|
||||
)
|
||||
else:
|
||||
# 使用固定迭代次数
|
||||
corrected_images = correction_iterative(
|
||||
image_array, iter=sugar_iter, bounds=sugar_bounds,
|
||||
correction_iterative(
|
||||
img_path, iter=sugar_iter, bounds=sugar_bounds,
|
||||
estimate_background=sugar_estimate_background,
|
||||
glint_mask_method=sugar_glint_mask_method_fixed,
|
||||
water_mask=mask_for_algorithm,
|
||||
output_path=None # 不传递output_path，使用pipeline保存
|
||||
output_path=output_path
|
||||
)
|
||||
|
||||
# 使用最后一次迭代的结果
|
||||
if len(corrected_images) > 0:
|
||||
corrected_array = corrected_images[-1]
|
||||
|
||||
bsq_path = output_path if output_path.endswith('.bsq') else output_path.replace('.dat', '.bsq').replace(
|
||||
'.tif', '.bsq')
|
||||
if Path(bsq_path).exists() or Path(output_path).exists():
|
||||
self.deglint_img_path = bsq_path if Path(bsq_path).exists() else output_path
|
||||
self._copy_hdr_info(img_path, self.deglint_img_path)
|
||||
else:
|
||||
raise ValueError("SUGAR算法未生成任何结果")
|
||||
|
||||
# 保存结果（保留地理信息）
|
||||
self._save_array_as_image(corrected_array, output_path, geotransform, projection)
|
||||
self.deglint_img_path = output_path
|
||||
# 复制原始hdr文件信息
|
||||
self._copy_hdr_info(img_path, output_path)
|
||||
|
||||
raise RuntimeError(f"SUGAR算法未生成输出文件: {bsq_path}")
|
||||
else:
|
||||
raise ValueError(f"不支持的方法: {method}。支持的方法: kutser, goodman, hedley, sugar")
|
||||
|
||||
raise ValueError(f"不支持的方法: {method}。支持的方法: kutser, goodman, hedley, sugar")
|
||||
|
||||
step_end_time = time.time()
|
||||
self._record_step_time("步骤3: 去除耀斑", step_start_time, step_end_time)
|
||||
print(f"去耀斑影像已生成: {self.deglint_img_path}")
|
||||
return self.deglint_img_path
|
||||
except Exception as e:
|
||||
step_end_time = time.time()
|
||||
self._record_step_time("步骤3: 去除耀斑", step_start_time, step_end_time,
|
||||
status="failed", error=str(e))
|
||||
self._record_step_time("步骤3: 去除耀斑", step_start_time, step_end_time,
|
||||
status="failed", error=str(e))
|
||||
raise
|
||||
|
||||
def step4_process_csv(self, csv_path: str, skip_dependency_check: bool = False) -> str:
|
||||
|
||||
@ -1443,7 +1443,7 @@ class WaterQualityGUI(QMainWindow):
|
||||
msg_box = QMessageBox()
|
||||
msg_box.setIcon(QMessageBox.Information)
|
||||
msg_box.setWindowTitle("选择工作目录")
|
||||
msg_box.setText("欢迎使用水质参数反演分析系统！\n\n请选择工作目录来保存所有分析结果。")
|
||||
msg_box.setText("欢迎使用Mega Water！\n\n请选择工作目录来保存所有分析结果。")
|
||||
msg_box.setInformativeText("工作目录将用于存储：\n• 水域掩膜文件\n• 耀斑检测结果\n• 模型训练数据\n• 预测结果与分布图\n\n点击'确定'选择目录")
|
||||
msg_box.setStandardButtons(QMessageBox.Ok | QMessageBox.Cancel)
|
||||
msg_box.setDefaultButton(QMessageBox.Ok)
|
||||
@ -1487,7 +1487,7 @@ class WaterQualityGUI(QMainWindow):
|
||||
|
||||
def init_ui(self):
|
||||
"""初始化UI"""
|
||||
self.setWindowTitle("水质参数反演分析系统 v1.1")
|
||||
self.setWindowTitle("Mega Water v1.1")
|
||||
|
||||
# 获取屏幕可用区域（排除任务栏）
|
||||
screen_geometry = QApplication.primaryScreen().availableGeometry()
|
||||
@ -2670,7 +2670,7 @@ class WaterQualityGUI(QMainWindow):
|
||||
"""显示关于对话框"""
|
||||
QMessageBox.about(
|
||||
self, "关于",
|
||||
"水质参数反演分析系统 v1.0\n\n"
|
||||
"Mega Water v1.1\n\n"
|
||||
"一个完整的水质参数反演工作流程工具\n\n"
|
||||
"功能包括：\n"
|
||||
"- 水域掩膜生成\n"
|
||||
@ -2998,7 +2998,7 @@ def main():
|
||||
app = QApplication(sys.argv)
|
||||
|
||||
# 设置应用信息
|
||||
app.setApplicationName("水质参数反演分析系统")
|
||||
app.setApplicationName("Mega Water")
|
||||
app.setOrganizationName("WaterQuality")
|
||||
|
||||
# 创建主窗口
|
||||
|
||||
Reference in New Issue
Block a user