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30 lines
873 B
Python
30 lines
873 B
Python
import sys
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import Image
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if __name__ == "__main__":
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i24 = Image.open(sys.argv[1]).convert('RGB')
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width_24 = i24.size[0]
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height_24 = i24.size[1]
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print 'old size: %d, %d' % (width_24, height_24)
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width_32 = width_24 / 3 * 4
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height_32 = height_24 / 3 * 4
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print 'new size: %d, %d' % (width_32, height_32)
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i32 = Image.new('RGB', (width_32, height_32))
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x24 = 0
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y24 = 0
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for y in xrange(height_24):
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for x in xrange(0, width_24, 3):
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avg = (0, 0, 0)
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for j in xrange(3):
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p = i24.getpixel((x+j, y))
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i32.putpixel((x24+j, y24), p)
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avg = (avg[0] + p[0], avg[1] + p[1], avg[2] + p[2])
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i32.putpixel((x24+3, y24), (int(avg[0] / 3), int(avg[1] / 3), int(avg[2] / 3)))
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x24 += 4
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x24 = 0
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y24 += 1
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i32.save('expanded_32.png')
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