205 lines
6.0 KiB
Python
205 lines
6.0 KiB
Python
#!/usr/bin/env python3
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"""
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Quick test: Chroma key on 5 images only
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"""
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import os
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import shutil
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from pathlib import Path
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from PIL import Image
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import numpy as np
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# Test images
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TEST_IMAGES = [
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"assets/PHASE_PACKS/1_FAZA_1/tools/wood/watering_can.png",
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"assets/PHASE_PACKS/1_FAZA_1/animals/horse.png",
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"assets/PHASE_PACKS/1_FAZA_1/infrastructure/farm_elements/manure_pile.png",
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"assets/PHASE_PACKS/1_FAZA_1/tools/iron/pickaxe.png",
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"assets/PHASE_PACKS/1_FAZA_1/animals/sheep/walk.png",
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]
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OUTPUT_DIR = "test_transparency"
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def chroma_key_process(input_path, output_path):
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"""Full chroma key pipeline on single image"""
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img = Image.open(input_path)
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if img.mode != 'RGBA':
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img = img.convert('RGBA')
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data = np.array(img).astype(np.float32)
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r, g, b, a = data[:,:,0], data[:,:,1], data[:,:,2], data[:,:,3]
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# Step 1: Detect white/black/gray backgrounds
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# Pure white
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is_white = (r > 250) & (g > 250) & (b > 250)
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# Pure black
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is_black = (r < 5) & (g < 5) & (b < 5)
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# Near-white/gray (anti-aliasing)
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is_near_white = (r > 245) & (g > 245) & (b > 245)
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# Background mask
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background = is_white | is_black | is_near_white
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# Step 2: Set alpha to 0 for background pixels
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new_alpha = np.where(background, 0, a)
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# Step 3: For semi-white pixels (anti-aliasing), fade alpha
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brightness = (r + g + b) / 3
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semi_white = (brightness > 240) & (brightness <= 250)
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# Gradual fade based on brightness
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fade_alpha = np.where(semi_white, (255 - brightness) * 10, new_alpha)
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fade_alpha = np.clip(fade_alpha, 0, 255)
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data[:,:,3] = fade_alpha
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# Clean up fully transparent pixels
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fully_transparent = fade_alpha < 5
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data[fully_transparent, 0] = 0
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data[fully_transparent, 1] = 0
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data[fully_transparent, 2] = 0
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data[fully_transparent, 3] = 0
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result = Image.fromarray(data.astype(np.uint8))
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result.save(output_path, 'PNG')
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print(f" ✅ Processed: {os.path.basename(output_path)}")
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def main():
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print("🧪 QUICK TEST: Chroma Key on 5 Images")
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print("=" * 50)
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# Create output dir
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os.makedirs(OUTPUT_DIR, exist_ok=True)
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processed = []
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for img_path in TEST_IMAGES:
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if not os.path.exists(img_path):
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print(f" ❌ Not found: {img_path}")
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continue
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name = os.path.basename(img_path)
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name_no_ext = os.path.splitext(name)[0]
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# Copy original
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orig_dest = os.path.join(OUTPUT_DIR, f"{name_no_ext}_ORIGINAL.png")
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shutil.copy(img_path, orig_dest)
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print(f" 📋 Copied original: {name}")
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# Process and save
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proc_dest = os.path.join(OUTPUT_DIR, f"{name_no_ext}_PROCESSED.png")
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chroma_key_process(img_path, proc_dest)
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processed.append({
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'name': name_no_ext,
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'original': orig_dest,
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'processed': proc_dest
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})
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# Generate comparison HTML
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html = '''<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>🧪 Test Transparency - 5 Sample Images</title>
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<style>
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body {
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background: #1a1a2e;
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color: white;
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font-family: Arial, sans-serif;
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padding: 30px;
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}
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h1 {
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color: #ff4444;
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text-align: center;
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}
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.comparison {
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display: flex;
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gap: 40px;
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margin: 30px 0;
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padding: 20px;
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background: rgba(0,0,0,0.3);
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border-radius: 15px;
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}
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.image-box {
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flex: 1;
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text-align: center;
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}
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.image-box h3 {
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color: #ff6666;
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margin-bottom: 15px;
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}
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.image-box img {
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max-width: 300px;
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max-height: 300px;
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border: 2px solid #333;
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border-radius: 10px;
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}
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/* Checkerboard background for transparency */
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.transparent-bg {
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background: linear-gradient(45deg, #333 25%, transparent 25%),
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linear-gradient(-45deg, #333 25%, transparent 25%),
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linear-gradient(45deg, transparent 75%, #333 75%),
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linear-gradient(-45deg, transparent 75%, #333 75%);
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background-size: 20px 20px;
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background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
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background-color: #555;
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padding: 20px;
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border-radius: 10px;
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}
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.label {
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margin-top: 10px;
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font-size: 0.9em;
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color: #aaa;
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}
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.success { color: #44ff44; }
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.info {
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text-align: center;
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color: #888;
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margin-bottom: 30px;
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}
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</style>
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</head>
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<body>
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<h1>🧪 Test Transparency - Before & After</h1>
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<p class="info">Left: Original (white/black background) | Right: Processed (transparent with checkerboard)</p>
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'''
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for item in processed:
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html += f'''
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<div class="comparison">
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<div class="image-box">
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<h3>📷 ORIGINAL</h3>
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<img src="{item['original']}" alt="Original">
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<div class="label">{item['name']}_ORIGINAL.png</div>
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</div>
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<div class="image-box">
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<h3 class="success">✅ PROCESSED</h3>
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<div class="transparent-bg">
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<img src="{item['processed']}" alt="Processed">
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</div>
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<div class="label">{item['name']}_PROCESSED.png</div>
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</div>
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</div>
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'''
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html += '''
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<p class="info" style="margin-top: 40px;">
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If you see the gray checkerboard pattern behind the processed images, transparency is working! 🎉
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</p>
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</body>
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</html>
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'''
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html_path = os.path.join(OUTPUT_DIR, "comparison.html")
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with open(html_path, 'w') as f:
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f.write(html)
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print("\n" + "=" * 50)
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print(f"✅ DONE! Created comparison page:")
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print(f" 📂 {OUTPUT_DIR}/")
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print(f" 🌐 Open: {html_path}")
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print("=" * 50)
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if __name__ == '__main__':
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main()
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