I noticed some annoying ringing artifacts in my footage after applying the GaussianBlur() from the PrSDKGPUImageProcessingSuite.
I assume the blur implementation is the same as in the 'Gaussian Blur' Video Effect. So I tested with that effect standalone and was able reproduce the problem.
The ringing artifacts appear in high contrasted footage (see screenshots) and only with the GPU-version of the blur.
Switching to software-only renderer and therefore enforcing the CPU-version of the effect removes the artifacts.
Has anybody already noticed this issue?
Gaussian Blur (CPU) without artifacts:
Gaussian Blur (GPU) with artifacts:
I am having the same exact problem. It's actually pretty dramatic. What is interesting is that it looks great when I am editing on premiere. It only shows the artifacts once I export it.
I couldn't really understand your solution actually. Would you mind explaining it in more detail?
Here is a face that I tried Gaussian Blur with at 100. Other images I only used 50 and it's still creates the rings. Here the rings are most noticeable on the cheek:
Thanks SO MUCH!