1 files changed, 81 insertions, 0 deletions
diff --git a/megapixels/datasets/commands/resize.py b/megapixels/datasets/commands/resize.py
new file mode 100644
index 00000000..5e2d31aa
--- /dev/null
+++ b/megapixels/datasets/commands/resize.py
@@ -0,0 +1,81 @@
+"""
+Crop images to prepare for training
+"""
+
+import click
+
+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   ⭐⭐⭐⭐  ⭐⭐⭐⭐  ⭐
+"""
+
+@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='jpg', type=click.Choice(['jpg', 'png']),
+  help='File glob ext')
+@click.option('--size', 'opt_size',  
+  type=(int, int), default=(256, 256),
+  help='Output image size (square)')
+@click.option('--method', 'opt_scale_method', 
+  type=click.Choice(['LANCZOS', 'BICUBIC', 'HAMMING', 'BILINEAR', 'BOX', 'NEAREST']),
+  default='LANCZOS',
+  help='Scaling method to use')
+@click.pass_context
+def cli(ctx, opt_dir_in, opt_dir_out, opt_glob_ext, opt_size, opt_scale_method):
+  """Crop, mirror images"""
+  
+  import os
+  from os.path import join
+  from pathlib import Path
+  from glob import glob
+  from tqdm import tqdm
+  from PIL import Image, ImageOps, ImageFilter
+  from app.utils import logger_utils, file_utils, im_utils
+  
+  # -------------------------------------------------
+  # init
+
+  log = logger_utils.Logger.getLogger()
+  
+  methods = {
+    'LANCZOS': Image.LANCZOS,
+    'BICUBIC': Image.BICUBIC,
+    'HAMMING': Image.HAMMING,
+    'BILINEAR': Image.BILINEAR,
+    'BOX': Image.BOX,
+    'NEAREST': Image.NEAREST
+    }
+
+  # -------------------------------------------------
+  # process here
+
+  # get list of files to process
+  fp_ims = glob(join(opt_dir_in, '*.{}'.format(opt_glob_ext)))
+  log.info('processing {:,} files'.format(len(fp_ims)))
+  
+  # set scale method
+  scale_method = methods[opt_scale_method]
+
+  # 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)
+    im = ImageOps.fit(im, opt_size, method=scale_method, centering=(0.5, 0.5))
+    fp_out = join(opt_dir_out, Path(fp_im).name)
+    im.save(fp_out)
+