gen_test.py

from PIL import Image, ImageDraw

def generate_test_pattern(filename):
    width, height = 320, 240
    img = Image.new('RGB', (width, height), color='white')
    draw = ImageDraw.Draw(img)
    
    # Color Bars
    colors = [
        (255, 255, 255), # White
        (255, 255, 0),   # Yellow
        (0, 255, 255),   # Cyan
        (0, 255, 0),     # Green
        (255, 0, 255),   # Magenta
        (255, 0, 0),     # Red
        (0, 0, 255),     # Blue
        (0, 0, 0)        # Black
    ]
    
    bar_width = width // len(colors)
    for i, color in enumerate(colors):
        draw.rectangle([i * bar_width, 0, (i + 1) * bar_width, height], fill=color)
        
    # Add some text
    draw.text((10, 10), "SSTV TEST", fill=(0, 0, 0))
    draw.text((10, 30), "Robot 36", fill=(0, 0, 0))
    
    img.save(filename)
    print(f"Generated test image: {filename}")

if __name__ == "__main__":
    generate_test_pattern("test_pattern.png")