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Thread: Alternative to the old Unpremultiply() plugin?

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31st December 2012, 23:07

#7 | Link

IanB

Avisynth Developer

Join Date: Jan 2003

Location: Melbourne, Australia

Posts: 3,167

Opps,

The bottom row and right column of the lookup table are not being initialised.

Code:

		for (int i=0; i< 255; i++) {
			lookup[i<<8] = i;
			for (int j=1; j<255; j++)
				lookup[(i<<8)+j] = uint8clamp((i * 255 + j / 2) / j);
		}

See attached :-

Attached Files

Unpremultiply.zip (33.2 KB, 399 views)

Last edited by IanB; 31st December 2012 at 23:54.

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