01-03-2018 02:39 AM
Picture turns purple at the left and right edge after a raw conversion.
The first image is converted from Adobe lightroom, and the second image is converted with latest DPP. Notice the slight purple coloring at the very right edge.
I only adjusted color temperature, de-noise options and lens corrections (vignetting).
Please let me know if there's any workarounds on this.
01-03-2018 10:22 AM - edited 01-03-2018 12:21 PM
If this happens in LR and DPP, why do you think its a bug in DPP? None of my RAW files turn purple if I slide Reduce Chromiance slider all the way down to 20. Have no idea what color temp you used. Do I need to convert to reproduce?
We need some more details.
Suggest you post original image of "grassy knoll" and provide details about the shot, your system specs and OS. All I see are some purple blobs on my screen with what looks like noise, blades of grass and some trees.
01-03-2018 04:10 PM
The purple edge does NOT happen in LR, which is why I suspect it's a DPP bug.
Bug cannot be reproduced in jpeg images, must be RAW. I'm using a color temperature around 5300K.
I was using a 6D, firmware 1.1.3, and now processing with Windows 10, and DPP 4.7.2, image is shot @ iso 1600, 1/400s, f7.3
There is a similar color toned image @ iso 200, 1/400s, f8, color temperature is around 5800K that showed the same effect, see below.
I have tried similar processing on my 5D Mark II, no such effect occurs. So you probably can't reproduce it on your camera.
The original picture won't matter here because this is the only spot that has this problem, left and right edges. purple on right edge is more pronounced. Aspect ratio is 3:2 landscape of course.
01-04-2018 08:49 AM
01-04-2018 09:00 AM
01-04-2018 01:38 PM
Thanks for that info.
I posted the raw file here, let me know if you guys can see it.
I opened it in DPP 4.7.20 and didn't see anything out of the ordinary. I did an auto gamma adjustment on it and still don't.