Initial commit: What To Cook (WTC) v4.4 - Digitales Kochbuch, Wochenmenueplan & Buchdruck

2026-10-14 20:24:37 +02:00
commit c01d2d7639
171 changed files with 14073 additions and 0 deletions
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+import os
+from PIL import Image
+
+src_path = "/home/maxi/Projekt/wtc.waiswuaschd.de/app/static/img/chapters/source_chapter_1.jpg"
+out_dir = "/home/maxi/Projekt/wtc.waiswuaschd.de/app/static/img/chapters"
+im = Image.open(src_path).convert("RGBA")
+
+def make_transparent(sub_img):
+    sub_img = sub_img.convert("RGBA")
+    data = sub_img.getdata()
+    new_data = []
+    for item in data:
+        r, g, b, a = item
+        lum = 0.299 * r + 0.587 * g + 0.114 * b
+        if lum >= 248:
+            new_data.append((r, g, b, 0))
+        elif lum <= 200:
+            new_data.append((r, g, b, 255))
+        else:
+            alpha = int(255 * (248 - lum) / (248 - 200))
+            new_data.append((r, g, b, alpha))
+            
+    res = Image.new("RGBA", sub_img.size)
+    res.putdata(new_data)
+    
+    bbox = res.getbbox()
+    if bbox:
+        px1 = max(0, bbox[0] - 8)
+        py1 = max(0, bbox[1] - 8)
+        px2 = min(res.width, bbox[2] + 8)
+        py2 = min(res.height, bbox[3] + 8)
+        res = res.crop((px1, py1, px2, py2))
+    return res
+
+final_1 = make_transparent(im)
+out_path = os.path.join(out_dir, "chapter_1.png")
+final_1.save(out_path, "PNG")
+print(f"Saved Chapter 1 -> chapter_1.png ({final_1.width}x{final_1.height})")