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convolve

Built-in command

Arguments:

• [mask],_boundary_conditions,_is_normalized={ 0 | 1 },_channel_mode,_xcenter,_ycenter,_zcenter,_xstart,_ystart,_zstart,_xend,_yend,_zend,_xstride,_ystride,_zstride,_xdilation,_ydilation,_zdilation,interpolation_type

Description:

Convolve selected images by specified mask.

boundary_conditions can be { 0:dirichlet | 1:neumann | 2:periodic | 3:mirror }.
channel_mode can be { 0:all | 1:one-for-one | 2:partial sum | 3:full sum }.
interpolation_type can be { 0:nearest-neighbor | 1:linear }.

Default values:

boundary_conditions=1, is_normalized=0, channel_mode=1, xcenter=ycenter=zcenter=(undefined), xstart=ystart=zstart=0, xend=yend=zend=(max-coordinates), xstride=ystride=zstride=1, xdilation=ydilation=zdilation=1 and interpolation_type=0.

This command has a tutorial page.

Examples of use:

• Example #1

Command: image.jpg (0,1,0;1,-4,1;0,1,0) convolve[-2] [-1] keep[-2]

• Example #2