Initial commit

scratch/recolor_scooter.py

@@ -0,0 +1,64 @@
+import os
+from PIL import Image
+import colorsys
+
+def recolor_yellow_to_purple(input_path, output_path):
+    img = Image.open(input_path).convert("RGBA")
+    width, height = img.size
+    pixels = img.load()
+    
+    # Target purple color in HSV
+    # We want a vibrant purple matching --on-primary-container or --primary-container
+    # Let's say hue is around 280 degrees (0.77 in 0-1 range)
+    target_hue = 280.0 / 360.0
+    
+    recolored_count = 0
+    
+    for x in range(width):
+        for y in range(height):
+            r, g, b, a = pixels[x, y]
+            if a == 0:
+                continue
+                
+            # Convert RGB to HSV
+            # RGB values are 0-255, colorsys expects 0-1
+            h, s, v = colorsys.rgb_to_hsv(r / 255.0, g / 255.0, b / 255.0)
+            
+            # Check if the pixel is yellow/orange
+            # Yellow hue is around 40-75 degrees (0.11 to 0.21)
+            # Orange/yellow can start around 35 degrees (0.097)
+            # We want to avoid skin tones, which are typically warmer/redder (hue 10-30 degrees, i.e., 0.02 to 0.08)
+            # and have lower saturation.
+            # Bright yellow elements like the bag, scooter, shirt, helmet have high saturation (s > 0.4)
+            # and high value (v > 0.4).
+            
+            is_yellow = False
+            
+            # Bright yellow/orange check
+            # Hue range: 38 to 82 degrees (0.105 to 0.228)
+            if 0.10 <= h <= 0.23 and s >= 0.35 and v >= 0.30:
+                is_yellow = True
+            # Let's also include slightly redder orange if it is highly saturated (which skin is not)
+            elif 0.07 <= h < 0.10 and s >= 0.70 and v >= 0.50:
+                is_yellow = True
+                
+            if is_yellow:
+                # We shift the hue to target purple (280 degrees)
+                # Keep saturation and value similar, maybe boost saturation a bit for richness
+                new_h = target_hue
+                new_s = min(s * 1.0, 1.0)
+                new_v = v
+                
+                # Convert back to RGB
+                new_r, new_g, new_b = colorsys.hsv_to_rgb(new_h, new_s, new_v)
+                pixels[x, y] = (int(new_r * 255), int(new_g * 255), int(new_b * 255), a)
+                recolored_count += 1
+                
+    img.save(output_path, "PNG")
+    print(f"Recolored {recolored_count} pixels and saved to {output_path}")
+
+if __name__ == "__main__":
+    recolor_yellow_to_purple(
+        "public/images/slider-courier-mask.png",
+        "public/images/slider-courier-mask-purple.png"
+    )