Edge-preserving smoothing filter

dst = cv.edgePreservingFilter(src)
dst = cv.edgePreservingFilter(src, 'OptionName',optionValue, ...)

Input

• src Input 8-bit 3-channel image.

Output

• dst Output 8-bit 3-channel image.

Options

• Filter Edge preserving filters, one of:
  • Recursive (default)
  • NormConv
• SigmaS Range between 0 to 200. default 60
• SigmaR Range between 0 to 1. default 0.4
• FlipChannels whether to flip the order of color channels in input src and output dst, between MATLAB's RGB order and OpenCV's BGR (input: RGB->BGR, output: BGR->RGB). default true

Filtering is the fundamental operation in image and video processing. Edge-preserving smoothing filters are used in many different applications [EM11].

References

[EM11]:

Eduardo SL Gastal and Manuel M Oliveira. "Domain transform for edge-aware image and video processing". In ACM Transactions on Graphics (TOG), volume 30, page 69. ACM, 2011.