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-rw-r--r--megapixels/commands/cv/resize.py150
1 files changed, 0 insertions, 150 deletions
diff --git a/megapixels/commands/cv/resize.py b/megapixels/commands/cv/resize.py
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--- a/megapixels/commands/cv/resize.py
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-"""
-Crop images to prepare for training
-"""
-
-import click
-import cv2 as cv
-from PIL import Image, ImageOps, ImageFilter
-
-from app.settings import types
-from app.utils import click_utils
-from app.settings import app_cfg as cfg
-
-"""
-Filter Q-Down Q-Up Speed
-NEAREST ⭐⭐⭐⭐⭐
-BOX ⭐ ⭐⭐⭐⭐
-BILINEAR ⭐ ⭐ ⭐⭐⭐
-HAMMING ⭐⭐ ⭐⭐⭐
-BICUBIC ⭐⭐⭐ ⭐⭐⭐ ⭐⭐
-LANCZOS ⭐⭐⭐⭐ ⭐⭐⭐⭐ ⭐
-"""
-methods = {
- 'lanczos': Image.LANCZOS,
- 'bicubic': Image.BICUBIC,
- 'hamming': Image.HAMMING,
- 'bileaner': Image.BILINEAR,
- 'box': Image.BOX,
- 'nearest': Image.NEAREST
- }
-centerings = {
- 'tl': (0.0, 0.0),
- 'tc': (0.5, 0.0),
- 'tr': (0.0, 0.0),
- 'lc': (0.0, 0.5),
- 'cc': (0.5, 0.5),
- 'rc': (1.0, 0.5),
- 'bl': (0.0, 1.0),
- 'bc': (1.0, 0.5),
- 'br': (1.0, 1.0)
-}
-
-@click.command()
-@click.option('-i', '--input', 'opt_dir_in', required=True,
- help='Input directory')
-@click.option('-o', '--output', 'opt_dir_out', required=True,
- help='Output directory')
-@click.option('-e', '--ext', 'opt_glob_ext',
- default='png', type=click.Choice(['jpg', 'png']),
- help='File glob ext')
-@click.option('--size', 'opt_size',
- type=(int, int), default=(256, 256),
- help='Max output size')
-@click.option('--method', 'opt_scale_method',
- type=click.Choice(methods.keys()),
- default='lanczos',
- help='Scaling method to use')
-@click.option('--equalize', 'opt_equalize', is_flag=True,
- help='Equalize historgram')
-@click.option('--sharpen', 'opt_sharpen', is_flag=True,
- help='Unsharp mask')
-@click.option('--center', 'opt_center', default='cc', type=click.Choice(centerings.keys()),
- help='Crop focal point')
-@click.option('--slice', 'opt_slice', type=(int, int), default=(None, None),
- help='Slice the input list')
-@click.option('-t', '--threads', 'opt_threads', default=8,
- help='Number of threads')
-@click.pass_context
-def cli(ctx, opt_dir_in, opt_dir_out, opt_glob_ext, opt_size, opt_scale_method,
- opt_equalize, opt_sharpen, opt_center, opt_slice, opt_threads):
- """Crop, mirror images"""
-
- import os
- from os.path import join
- from pathlib import Path
- from glob import glob
- from tqdm import tqdm
- from multiprocessing.dummy import Pool as ThreadPool
- from functools import partial
-
- from app.utils import logger_utils, file_utils, im_utils
-
- # -------------------------------------------------
- # init
-
- log = logger_utils.Logger.getLogger()
-
-
- # -------------------------------------------------
- # process here
-
- def pool_resize(fp_im, opt_size, scale_method):
- # Threaded image resize function
- try:
- pbar.update(1)
- try:
- im = Image.open(fp_im).convert('RGB')
- im.verify()
- except Exception as e:
- log.warn('Could not open: {}'.format(fp_im))
- log.error(e)
- return False
-
- #im = ImageOps.fit(im, opt_size, method=scale_method, centering=centering)
-
- if opt_equalize:
- im_np = im_utils.pil2np(im)
- im_np_eq = eq_hist_yuv(im_np)
- im_np = cv.addWeighted(im_np_eq, 0.35, im_np, 0.65, 0)
- im = im_utils.np2pil(im_np)
-
- if opt_sharpen:
- im = im.filter(ImageFilter.UnsharpMask)
-
- fp_out = join(opt_dir_out, Path(fp_im).name)
- im.save(fp_out)
- return True
- except:
- return False
-
- #centering = centerings[opt_center]
- #scale_method = methods[opt_scale_method]
-
- # get list of files to process
- fp_ims = glob(join(opt_dir_in, '*.{}'.format(opt_glob_ext)))
- if opt_slice:
- fp_ims = fp_ims[opt_slice[0]:opt_slice[1]]
- log.info('processing {:,} files'.format(len(fp_ims)))
-
-
- # ensure output dir exists
- file_utils.mkdirs(opt_dir_out)
-
- # setup multithreading
- pbar = tqdm(total=len(fp_ims))
- #pool_resize = partial(pool_resize, opt_size=opt_size, scale_method=scale_method, centering=centering)
- pool_resize = partial(pool_resize, opt_size=opt_size)
- #result_list = pool.map(prod_x, data_list)
- pool = ThreadPool(opt_threads)
- with tqdm(total=len(fp_ims)) as pbar:
- results = pool.map(pool_resize, fp_ims)
- pbar.close()
-
- log.info('Resized: {} / {} images'.format(results.count(True), len(fp_ims)))
-
-
-
-def eq_hist_yuv(im):
- im_yuv = cv.cvtColor(im, cv.COLOR_BGR2YUV)
- im_yuv[:,:,0] = cv.equalizeHist(im_yuv[:,:,0])
- return cv.cvtColor(im_yuv, cv.COLOR_YUV2BGR)