Fix border artifacts in edge-detection filters
KisConvolutionPainter::applyMatrix() will automatically read more
data outside the passed areaSize if it is needed for the kernel.
There is no need to pass bigger area to the painter.
KisConvolutionPainter::applyMatrix() will automatically read more
data outside the passed areaSize if it is needed for the kernel.
There is no need to pass bigger area to the painter.