12-15-2019, 08:24 PM
I spent ages retouching a photo, but when I export it there are a bunch of artifacts in a large area where I used cage transform (but not in other areas where I performed equivalent transformations). Specifically, there's a line at the right-hand border of the cage -- across it the transformations aren't contiguous, and black is showing as two very different values. I'm attaching a crop of the problem area below. Does anyone know what's causing this and ideally how to fix it?? I'm doing this as a favor for someone who anticipates it appearing in print.
It's also worth mentioning that the exported image has grain-type artifacts in areas not affected by the other problem. They're not present in GIMP, just the exported image. In all fairness, the original image isn't the crispest, but this is still a lot more quality-loss than I'd anticipate.
FYI, I'm running 2.10, and the workspace is sRGB 8-bit gamma integer. (Could the problem be that GIMP has been surreptitiously displaying in 32-floating this whole time, even though it says it's in 8-integer?)
It's also worth mentioning that the exported image has grain-type artifacts in areas not affected by the other problem. They're not present in GIMP, just the exported image. In all fairness, the original image isn't the crispest, but this is still a lot more quality-loss than I'd anticipate.
FYI, I'm running 2.10, and the workspace is sRGB 8-bit gamma integer. (Could the problem be that GIMP has been surreptitiously displaying in 32-floating this whole time, even though it says it's in 8-integer?)