Files
BRDF/Flexbrdf/scripts/image_correct_topogroup.py
2026-04-10 16:46:45 +08:00

211 lines
7.4 KiB
Python

import json
import os
import warnings
import sys
import ray
import numpy as np
import time
import hytools as ht
from hytools.io.envi import *
from hytools.topo import calc_topo_coeffs
from hytools.brdf import calc_brdf_coeffs
from hytools.masks import mask_create
from hytools.misc import update_topo_group
import logging
logging.basicConfig(format='%(asctime)s %(message)s',level=logging.INFO)
warnings.filterwarnings("ignore")
np.seterr(divide='ignore', invalid='ignore')
def main():
time_start = time.perf_counter()
config_file = sys.argv[1]
with open(config_file, 'r') as outfile:
config_dict = json.load(outfile)
images= config_dict["input_files"]
if ray.is_initialized():
ray.shutdown()
logging.info("Using %s CPUs." % config_dict['num_cpus'])
ray.init(num_cpus = config_dict['num_cpus'])
HyTools = ray.remote(ht.HyTools)
if "subgrouped" in config_dict["topo"]:
if config_dict["topo"]["subgrouped"]:
subgroup_list, group_tag_list = update_topo_group(config_dict["topo"]["subgroup"])
actor_subgroup = []
for file_name_list in subgroup_list:
actor_subgroup+=[[HyTools.remote() for image in file_name_list]]
actors = []
for actor_list in actor_subgroup:
actors+= actor_list
else:
actors = [HyTools.remote() for image in images]
actor_subgroup = None
group_tag_list=None
else:
actors = [HyTools.remote() for image in images]
actor_subgroup = None
group_tag_list=None
if config_dict['file_type'] == 'envi' or config_dict['file_type'] == 'ncav' or config_dict['file_type'] == 'emit':
anc_files = config_dict["anc_files"]
_ = ray.get([a.read_file.remote(image,config_dict['file_type'],
anc_files[image]) for a,image in zip(actors,images)])
elif config_dict['file_type'] == 'neon':
_ = ray.get([a.read_file.remote(image,config_dict['file_type']) for a,image in zip(actors,images)])
#Here is where the outlier detection should probably happen.
_ = ray.get([a.create_bad_bands.remote(config_dict['bad_bands']) for a in actors])
for correction in config_dict["corrections"]:
if correction =='topo':
time_topo_start = time.perf_counter()
calc_topo_coeffs(actors,config_dict['topo'],actor_group_list=actor_subgroup,group_tag_list=group_tag_list)
time_topo_end = time.perf_counter()
logging.info("TOPO Time: {} sec.".format(time_topo_end - time_topo_start))
elif correction == 'brdf':
time_brdf_start = time.perf_counter()
calc_brdf_coeffs(actors,config_dict)
time_brdf_end = time.perf_counter()
logging.info("BRDF Time: {} sec.".format(time_brdf_end - time_brdf_start))
if config_dict['export']['coeffs'] and len(config_dict["corrections"]) > 0:
logging.info("Exporting correction coefficients.")
_ = ray.get([a.do.remote(export_coeffs,config_dict['export']) for a in actors])
time_export_start = time.perf_counter()
if config_dict['export']['image']:
logging.info("Exporting corrected images.")
_ = ray.get([a.do.remote(apply_corrections,config_dict) for a in actors])
time_export_end = time.perf_counter()
logging.info("Export Time: {} sec.".format(time_export_end - time_export_start))
ray.shutdown()
time_end = time.perf_counter()
logging.info("Total Time: {} sec.".format(time_end - time_start))
def export_coeffs(hy_obj,export_dict):
'''Export correction coefficients to file.
'''
for correction in hy_obj.corrections:
if correction=='unsmooth':
continue
coeff_file = export_dict['output_dir']
coeff_file += os.path.splitext(os.path.basename(hy_obj.file_name))[0]
coeff_file += "_%s_coeffs_%s.json" % (correction,export_dict["suffix"])
with open(coeff_file, 'w') as outfile:
if correction == 'topo':
corr_dict = hy_obj.topo
else:
corr_dict = hy_obj.brdf
json.dump(corr_dict,outfile)
def apply_corrections(hy_obj,config_dict):
'''Apply correction to image and export
to file.
'''
header_dict = hy_obj.get_header()
header_dict['data ignore value'] = hy_obj.no_data
header_dict['data type'] = 4
output_name = config_dict['export']['output_dir']
output_name += os.path.splitext(os.path.basename(hy_obj.file_name))[0]
output_name += "_%s" % config_dict['export']["suffix"]
#Export all wavelengths
if len(config_dict['export']['subset_waves']) == 0:
if config_dict["resample"] == True:
hy_obj.resampler = config_dict['resampler']
waves= hy_obj.resampler['out_waves']
else:
waves = hy_obj.wavelengths
header_dict['bands'] = len(waves)
header_dict['wavelength'] = waves
header_dict['fwhm'] = hy_obj.fwhm
writer = WriteENVI(output_name,header_dict)
iterator = hy_obj.iterate(by = 'line', corrections = hy_obj.corrections,
resample = config_dict['resample'])
while not iterator.complete:
line = iterator.read_next()
writer.write_line(line,iterator.current_line)
writer.close()
#Export subset of wavelengths
else:
waves = config_dict['export']['subset_waves']
bands = [hy_obj.wave_to_band(x) for x in waves]
waves = [round(hy_obj.wavelengths[x],2) for x in bands]
header_dict['bands'] = len(bands)
header_dict['wavelength'] = waves
header_dict['fwhm'] = [hy_obj.fwhm[x] for x in bands]
writer = WriteENVI(output_name,header_dict)
for b,band_num in enumerate(bands):
#print('image_correct.py Ln 123',hy_obj.corrections)
band = hy_obj.get_band(band_num,
corrections = hy_obj.corrections)
writer.write_band(band, b)
writer.close()
#Export masks
# does not work for precomputed json coeffs
if (config_dict['export']['masks']) and (len(config_dict["corrections"]) > 0):
masks = []
mask_names = []
for correction in config_dict["corrections"]:
if correction=='unsmooth':
continue
#for mask_type in config_dict[correction]['calc_mask']:
for mask_type in config_dict[correction]['apply_mask']:
mask_names.append(correction + '_' + mask_type[0])
masks.append(mask_create(hy_obj, [mask_type]))
header_dict['data type'] = 1
header_dict['bands'] = len(masks)
header_dict['band names'] = mask_names
header_dict['samples'] = hy_obj.columns
header_dict['lines'] = hy_obj.lines
header_dict['wavelength'] = []
header_dict['fwhm'] = []
header_dict['wavelength units'] = ''
header_dict['data ignore value'] = 255
output_name = config_dict['export']['output_dir']
output_name += os.path.splitext(os.path.basename(hy_obj.file_name))[0]
output_name += "_%s_mask" % config_dict['export']["suffix"]
writer = WriteENVI(output_name,header_dict)
for band_num,mask in enumerate(masks):
mask =mask.astype(int)
mask[~hy_obj.mask['no_data']] = 255
writer.write_band(mask,band_num)
del masks
if __name__== "__main__":
main()