A two-stage switching vector median filter based on quaternion for

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a) Rectangular decimation (factor 1/4) and its primitive bandwidth and

Complex impulse noise removal from color images based on super pixel segmentation - ScienceDirect

PDF) An effective weighted vector median filter for impulse noise reduction based on minimizing the degree of aggregation

A two-stage switching vector median filter based on quaternion for removing impulse noise in color images

PDF) A two-stage switching vector median filter based on quaternion for removing impulse noise in color images

Metrics obtained when applying the median filter

Mathematics, Free Full-Text

Quaternion switching filter for impulse noise reduction in color image - ScienceDirect

Quaternions in Signal and Image Processing

Output images of various filters on Lena image at noise density 20% and 60%

Vectorial representation of the color image pixels in the RGB color space.