SpotRemover performs smoothing of the video material in time.
SpotRemover does not suffer from this problem and here is why:
1. The smoothing is made as the weighed average.
That means, for a current pixel in time, its intensity is compared to the intensities of all the other
pixels in the smoothing kernel. The smaller is the difference the more weight is assigned to the
corresponding pixel. The weight does not depend on the pixel's position in the kernel.
I should acknowledge that, up to this point, the original idea was borrowed from the
temporal smoother filter of Avery Lee. And I am grateful to him for the best
program for processing video, the VirtualDub.|
2. The smoothing strength (that is the effective width on intensity scale for the weights assignment) can be changed in finer steps than in the original temporal smooother, which allows the precise control over the noise reduction while keeping the motion intact.
3. The smoothing kernel can
be changed from 5 to 15 frames.
4. The intensity and color components of a pixel are smoothed separately, with different smoothing strengths. This can be particularly useful for a VHS video.
|Spot detection||Intensity locking||Color adjustment|