[LaTo]

Originally Posted by zee944

LaTo, judging from the images this is genius. Does it work only by using the histograms? No pixel-pixel comparing at all?

Really it isn't genius, here is the code:

int temp[2][256] = {{0}};
unsigned char curve[256] = {0};

for (int h = 0 ; h < height ; h++) {
	for (int w = 0 ; w < width ; w++) {
		temp[0][src1[(h*pitch)+w]] += src2[(h*pitch)+w];
		temp[1][src1[(h*pitch)+w]] += 1;
	}
}

for(int i = 0 ; i < 256 ; i++) {
	if( temp[1][i] != 0 )
		curve[i] = temp[0][i] / temp[1][i];
	else
		curve[i] = i;
}

Now you have your curve, curve[input] = output.

Originally Posted by zee944

Isn't the plugin broken? It's 15,360 bytes and AviSynth [2.5.8] tells me "unable to load MatchHistogram.dll". I couldn't find out why yet.

It works on my PC... Try to re-download it!