Fabrizio Levati wrote: > I was just wondering what could be the reason beyond printtarg changing the > reference values in the resulting ti2 file, when the -t option is used. The -t option means the 8-bit per channel tiff encoding, so the thing is rounding to nearest nighbour value at 8-bit scale. Y=ROUND(X/100*255)/255*100 X=10 Y=10.196078 X=11 Y=10.980392 X=11.15 Y=10.980392 It's just simple linear 8bit per pixel channel encoding.