Przeniesienie skryptów do nowego katalogu scripts.

[redakcja.git] / scripts / imgconv.py

diff --git a/scripts/imgconv.py b/scripts/imgconv.py
new file mode 100755 (executable)
index 0000000..ce514b3
--- /dev/null
+++ b/scripts/imgconv.py
@@ -0,0 +1,94 @@
+#!/usr/bin/env python
+import sys
+import os
+import shutil
+from os.path import splitext, dirname, basename, realpath
+from PIL import Image, ImageFilter, ImageEnhance, ImageOps
+
+
+def resize(image, max_width, max_height):
+    """Resize image so it's not wider than max_width and not higher than max_height."""
+    width, height = image.size
+    ratio = max(1.0, float(width) / max_width, float(height) / max_height)
+    new_width, new_height = int(width / ratio), int(height / ratio)
+    return image.resize((new_width, new_height), Image.ANTIALIAS)
+
+
+def crop(image, ratio, from_right=False):
+    """Crop image to ratio of current width."""
+    width, height = image.size
+    new_width = width * ratio
+    if from_right:
+        bounds = (int(width - new_width), 0, int(width), int(height))
+    else:
+        bounds = (0, 0, int(new_width), int(height))
+    image = image.crop(bounds)
+    image.load()
+    return image
+
+
+def ratio(image):
+    """Return width to height ratio of image."""
+    width, height = image.size
+    return float(width) / height
+    
+
+def try_creating(directory):
+    try:
+        os.mkdir(directory)
+    except:
+        pass
+
+
+output_dir = realpath(os.getcwd()) + '/output'
+# big_output_dir = output_dir + '/big'
+tmp_output_dir = output_dir + '/tmp'
+
+try_creating(output_dir)
+# try_creating(big_output_dir)
+try_creating(tmp_output_dir)
+
+
+for file_name in sys.argv[1:]:
+    base_name, ext = splitext(file_name)
+    try:
+        image = Image.open(file_name)
+    except IOError, e:
+        sys.stderr.write('\nerror:%s:%s\n' % (file_name, e.message))
+        continue
+    
+    # Check ratio
+    if ratio(image) > 1:
+        images = [crop(image, 0.6), crop(image, 0.6, from_right=True)]
+    else:
+        images = [image]
+    
+    for i, image in enumerate(images):
+        image_name = '%s.%d.png' % (basename(base_name), i)
+        
+        # Save files
+        small_image = resize(image, 640, 960)
+        small_image = small_image.convert('L')
+        small_image = ImageOps.autocontrast(small_image, cutoff=85)
+        # small_image = small_image.filter(ImageFilter.SHARPEN)
+        small_image.save(tmp_output_dir + '/' + image_name)
+
+        os.system('pngnq -n 128 -s 1 -e .png -d "%s" -f "%s"' % (
+            output_dir,
+            tmp_output_dir + '/' + image_name,
+        ))
+        os.remove(tmp_output_dir + '/' + image_name)
+        
+        # big_image = resize(image, 960, 1440)
+        # big_image = big_image.convert('L')
+        # big_image = big_image.filter(ImageFilter.SHARPEN)
+        # big_image.save(tmp_output_dir + '/' + image_name, optimize=True)
+        # os.system('pngnq -n 16 -s 1 -e .png -d "%s" -f "%s"' % (
+        #     big_output_dir,
+        #     tmp_output_dir + '/' + image_name,
+        # ))
+        # os.remove(tmp_output_dir + '/' + image_name)
+        
+    sys.stderr.write('.')
+
+shutil.rmtree(tmp_output_dir)