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1 files changed, 57 insertions, 0 deletions

diff --git a/megapixels/commands/cv/mirror.py b/megapixels/commands/cv/mirror.py
new file mode 100644
index 00000000..9ca1cac7
--- /dev/null
+++ b/megapixels/commands/cv/mirror.py
@@ -0,0 +1,57 @@
+"""
+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
+
+
+@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('--slice', 'opt_slice', type=(int, int), default=(None, None),
+  help='Slice the input list')
+@click.pass_context
+def cli(ctx, opt_dir_in, opt_dir_out,  opt_slice):
+  """Mirror augment image directory"""
+  
+  import os
+  from os.path import join
+  from pathlib import Path
+  from glob import glob
+  from tqdm import tqdm
+
+  from app.utils import logger_utils, file_utils, im_utils
+  
+  # -------------------------------------------------
+  # init
+
+  log = logger_utils.Logger.getLogger()
+  
+  # -------------------------------------------------
+  # process here
+
+  # get list of files to process
+  fp_ims = glob(join(opt_dir_in, '*.jpg'))
+  fp_ims += glob(join(opt_dir_in, '*.png'))
+  
+  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)
+
+  # resize and save images
+  for fp_im in tqdm(fp_ims):
+    im = Image.open(fp_im)
+    fpp_im = Path(fp_im)
+    fp_out = join(opt_dir_out, '{}_mirror{}'.format(fpp_im.stem, fpp_im.suffix))
+    im.save(fp_out)
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