colormap

Apply custom color maps to video stream.

This filter needs three input video streams. First stream is video stream that is going to be filtered out. Second and third video stream specify color patches for source color to target color mapping.

The filter accepts the following options:

patch_size

Set the source and target video stream patch size in pixels.

nb_patches

Set the max number of used patches from source and target video stream. Default value is number of patches available in additional video streams. Max allowed number of patches is 64.

type

Set the adjustments used for target colors. Can be relative or absolute. Defaults is absolute.

kernel

Set the kernel used to measure color differences between mapped colors.

The accepted values are:

‘euclidean’

‘weuclidean’

Default is euclidean.