Initial chromakey commit

.gitignore

@@ -1,2 +1,3 @@
 data
-.idea
+.idea
+output.png

chromakey.py

@@ -0,0 +1,23 @@
+import os
+
+import rawpy
+from PIL import Image, ImageOps
+
+path = 'data/RAW/SC1/BR1'
+filename = os.path.join(path, '00570/back.orf')
+
+
+raw = rawpy.imread(filename)
+rgb_image = raw.postprocess()
+
+image = Image.fromarray(rgb_image).convert('RGBA')
+
+hsv_image = image.convert('HSV')
+h, s, v = hsv_image.split()
+
+green_mask = Image.eval(h, lambda x: 255 if 50 < x < 90 else 0)
+green_mask = ImageOps.invert(green_mask)
+
+rgba_image = image.copy()
+rgba_image.putalpha(green_mask)
+rgba_image.save('output.png', 'PNG')