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Re: [QF-Test] Feature request: Inverted XOR and difference for image checks
Hello Marek, sorry, I almost forgot to answer. Thanks for your suggestion and the explanation, it sounds interesting. We're looking into it and will give it a try. If the result is good we'll probably add an option. Best regards, Greg "Nedvěd, Marek" <m.nedved@?.de> writes: > Hello Greg, > I made a misunderstanding here, because I described both highlighted difference and xor. > The highlighted difference is actually helpful if there are really > just small differences and should be as it is. > > The xor is what I wanted to be inverted. See, if you just xor the > colors, you will get the negative of the image, so if you invert it, > you will get the colors right, and the similarities will be white. > This can be useful when you have a slight difference in a colored > graph with multiple lines. If the image would be inverted I can > directly see which line has offset. > > Best regards, > Marek > > -----Original Message----- > From: Gregor Schmid [mailto:Gregor.Schmid@?.de] > Sent: Wednesday, November 18, 2015 6:20 PM > To: qftest-list@?.de > Cc: Nedvěd, Marek > Subject: Re: [QF-Test] Feature request: Inverted XOR and difference for image checks > > > Hello Marek, > > for me, the difference image is the most important one in cases where > there is no offset and minimal differences in the color values, so it > can't be spotted in any of the other versions. In the difference > image, the pixels with different values clearly stand out and when you > move the mouse pointer of such a pixel you'll see both color values > shown above the image. > > In such a case, the actual difference between the values is so close > to black anyways, that your suggestion - is I understand it correctly > - would only result in an inverse of the current difference image. > > Best regards, > Greg > > "Nedvěd, Marek" <m.nedved@?.de> writes: > >> Hello QF Test people, >> >> I would like to ask for a feature request for the image comparison. >> The images in the run-log are good. Expected and actual images are >> very helpful and the controls to compare them side-by-side, under >> each other or just to switch them are great. >> >> My only concern is with the xor and difference. If there are some >> obvious differences, then it is ok, but when there are just small >> differences, like small offsets or slight differences in colors, >> then it is not very pleasant to use. >> >> I suggest to deduct the resulting pixel color from black. Then most of >> the diff picture will be white and the differences will be in the actual color of the difference. >> >> But maybe it is just me, so I would like to ask for some feedback for >> this feature, if anyone is happy with it, please reply. >> >> Best regards, >> >> Marek Nedved >> >> _______________________________________________ >> qftest-list mailing list >> qftest-list@?.de >> https://www.qfs.de/mailman/listinfo/qftest-list -- Gregor Schmid E: gregor.schmid@?.de T: +49 8171 38648-11 F: +49 8171 38648-16 Quality First Software GmbH | www.qfs.de Tulpenstr. 41 | 82538 Geretsried | Germany GF Gregor Schmid, Dr. Martina Schmid, Karlheinz Kellerer HRB München 140833