image-processing

Median filtering

taught

A nonlinear neighborhood operation replacing each pixel with its neighborhood's median, resistant to outlier noise a linear filter would blur into the image.

Taught in

Median filtering (nonlinear)
Digital Image Processing

Requires

linear-vs-nonlinear-filtering-first-look required

Required by

Choosing a smoothing filter for a noise type required

Local knowledge map

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Solid arrows are required prerequisites; dashed are recommended or helpful. Lower rows are more foundational. Click any box to jump to that concept.