# HG changeset patch # User imgteam # Date 1645283812 0 # Node ID 5224cc463a9765515d93c81fc1830a2e584928e9 # Parent f40e5d11eb47fe45e52e86f50b71508013e7ee7b "planemo upload for repository https://github.com/BMCV/galaxy-image-analysis/tools/2d_auto_threshold/ commit b1b3c63ab021aa77875c3b04127f6836024812f9" diff -r f40e5d11eb47 -r 5224cc463a97 auto_threshold.py --- a/auto_threshold.py Wed Dec 18 09:55:34 2019 +0000 +++ b/auto_threshold.py Sat Feb 19 15:16:52 2022 +0000 @@ -1,35 +1,47 @@ +""" +Copyright 2017-2022 Biomedical Computer Vision Group, Heidelberg University. + +Distributed under the MIT license. +See file LICENSE for detail or copy at https://opensource.org/licenses/MIT + +""" + import argparse -import numpy as np -import sys + +import skimage.filters import skimage.io -import skimage.filters import skimage.util +import tifffile -threshOptions = { - 'otsu': lambda img_raw: skimage.filters.threshold_otsu(img_raw), - 'gaussian_adaptive': lambda img_raw: skimage.filters.threshold_local(img_raw, 3, method='gaussian'), - 'mean_adaptive': lambda img_raw: skimage.filters.threshold_local(img_raw, 3, method='mean'), - 'isodata': lambda img_raw: skimage.filters.threshold_isodata(img_raw), - 'li': lambda img_raw: skimage.filters.threshold_li(img_raw), - 'yen': lambda img_raw: skimage.filters.threshold_yen(img_raw), +thOptions = { + 'otsu': lambda img_raw, bz: skimage.filters.threshold_otsu(img_raw), + 'li': lambda img_raw, bz: skimage.filters.threshold_li(img_raw), + 'yen': lambda img_raw, bz: skimage.filters.threshold_yen(img_raw), + 'isodata': lambda img_raw, bz: skimage.filters.threshold_isodata(img_raw), + + 'loc_gaussian': lambda img_raw, bz: skimage.filters.threshold_local(img_raw, bz, method='gaussian'), + 'loc_median': lambda img_raw, bz: skimage.filters.threshold_local(img_raw, bz, method='median'), + 'loc_mean': lambda img_raw, bz: skimage.filters.threshold_local(img_raw, bz, method='mean') } + +def auto_thresholding(in_fn, out_fn, th_method, block_size=5, dark_bg=True): + img = skimage.io.imread(in_fn) + th = thOptions[th_method](img, block_size) + if dark_bg: + res = img > th + else: + res = img <= th + tifffile.imwrite(out_fn, skimage.util.img_as_ubyte(res)) + + if __name__ == "__main__": - parser = argparse.ArgumentParser(description='Segment Foci') - parser.add_argument('input_file', type=argparse.FileType('r'), default=sys.stdin, help='input file') - parser.add_argument('out_file', type=argparse.FileType('w'), default=sys.stdin, help='out file (TIFF)') - parser.add_argument('thresh_type', choices=threshOptions.keys(), help='thresholding method') - parser.add_argument('dark_background', default=True, type=bool, help='True if background is dark') + parser = argparse.ArgumentParser(description='Automatic Image Thresholding') + parser.add_argument('im_in', help='Path to the input image') + parser.add_argument('im_out', help='Path to the output image (TIFF)') + parser.add_argument('th_method', choices=thOptions.keys(), help='Thresholding method') + parser.add_argument('block_size', type=int, default=5, help='Odd size of pixel neighborhood for calculating the threshold') + parser.add_argument('dark_bg', default=True, type=bool, help='True if background is dark') args = parser.parse_args() - img_in = skimage.io.imread(args.input_file.name) - img_in = np.reshape(img_in, [img_in.shape[0], img_in.shape[1]]) - thresh = threshOptions[args.thresh_type](img_in) - - if args.dark_background: - res = img_in > thresh - else: - res = img_in <= thresh - - res = skimage.util.img_as_uint(res) - skimage.io.imsave(args.out_file.name, res, plugin="tifffile") + auto_thresholding(args.im_in, args.im_out, args.th_method, args.block_size, args.dark_bg) diff -r f40e5d11eb47 -r 5224cc463a97 auto_threshold.xml --- a/auto_threshold.xml Wed Dec 18 09:55:34 2019 +0000 +++ b/auto_threshold.xml Sat Feb 19 15:16:52 2022 +0000 @@ -1,47 +1,54 @@ - - applies a standard threshold algorithm to an image + + applies a standard thresholding algorithm to an image - scikit-image - numpy - pillow - tifffile + scikit-image + tifffile - - + + - + - - + + + - + + - + - - + + + - - + + + - Applies a standard threshold algorithm to an image. + Applies a standard thresholding algorithm to an image. 10.1016/j.jbiotec.2017.07.019 diff -r f40e5d11eb47 -r 5224cc463a97 test-data/out.tif Binary file test-data/out.tif has changed diff -r f40e5d11eb47 -r 5224cc463a97 test-data/out2.tif Binary file test-data/out2.tif has changed