38 lines
1.1 KiB
Plaintext
38 lines
1.1 KiB
Plaintext
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#!/usr/bin/python3
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from PIL import Image
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im = Image.open("bodensee-m3.png")
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print(im.format, im.size, im.mode)
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region_colors = {
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( 0, 0, 255, 255),
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( 0, 255, 255, 255),
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( 0, 255, 0, 255),
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(255, 255, 0, 255),
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(255, 0, 0, 255),
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}
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seeds = {c: [] for c in region_colors}
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for y in range(0, im.size[1]):
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for x in range(0, im.size[0]):
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p = im.getpixel((x, y))
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if p in region_colors:
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seeds[p].append((x, y))
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for y in range(0, im.size[1]):
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print(f"{y}")
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for x in range(0, im.size[0]):
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p = im.getpixel((x, y))
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if p[3] == 0:
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best_color = (0, 0, 0, 255)
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min_d2 = 10_000_000
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for color, points in seeds.items():
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for p in points:
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dx = p[0] - x
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dy = p[1] - y
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d2 = dx * dx + dy * dy
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if d2 < min_d2:
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best_color = color
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min_d2 = d2
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best_color = (*best_color[:3], 127)
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im.putpixel((x, y), best_color)
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im.save("bodensee-r3.png")
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