Yes, the only difference in blending is that subpixel mode does it 3
times per pixel.
Okay, thanks :)
The filter is color-balanced, but not normalized. Values above 0x100
will have to be clamped and this non-linearity causes distortion and
adds to color fringing. Stem darkening is the better way to increase
contrast.
So I tried to find two values that sum to 0x100:
>>> def f(a,c):
... return [a - c, a + c, 2 * a, a + c, a - c]
...
>>> [(a,c) for a in range(0x100) for c in range(0x100) if a > c and
sum(f(a, c)) == 0x100]
[]
So, uh, what am I missing? I found some values that sum to 0xFC but I
want 0x100 :(
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