Jeff Epler
36411203ff
This allows operations between channels in an image. It can be used for the following use cases: * Conversion to B&W or sepia * Adding color casts * Mixing or swapping arbitrary channels * Inverting or scaling arbitrary channels
17 lines
464 B
Python
17 lines
464 B
Python
palette = list("█▓▓▒▒░░·")
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def dump_bitmap(b, shifts=(0,)):
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for i in range(b.height):
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for shift in shifts:
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for j in range(b.width):
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# Bit order is gggBBBBBRRRRRGGG" so shift of 0 takes high order bits of G
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p = (b[j, i] >> shift) & 7
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print(end=palette[p])
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print(end=" ")
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print()
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print()
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def dump_bitmap_rgb_swapped(b):
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dump_bitmap(b, (5, 0, 10))
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