mojave man page for mpsimagelaplacian

MPSImageLaplacian(3)					 MetalPerformanceShaders.framework				      MPSImageLaplacian(3)

NAME
       MPSImageLaplacian

SYNOPSIS
       #import <MPSImageConvolution.h>

       Inherits MPSUnaryImageKernel.

   Properties
       float bias

   Additional Inherited Members
Detailed Description
       The MPSImageLaplacian is an optimized variant of the MPSImageConvolution filter provided primarily for ease of use. This filter uses an
       optimized convolution filter with a 3 x 3 kernel with the following weights: [ 0 1 0 1 -4 1 0 1 0 ]

       The optimized convolution filter used by MPSImageLaplacian can also be used by creating a MPSImageConvolution object with kernelWidth = 3,
       kernelHeight = 3 and weights as specified above.

Property Documentation
   - bias [read],  [write],  [nonatomic],  [assign]
       The bias is a value to be added to convolved pixel before it is converted back to the storage format. It can be used to convert negative
       values into a representable range for a unsigned MTLPixelFormat. For example, many edge detection filters produce results in the range
       [-k,k]. By scaling the filter weights by 0.5/k and adding 0.5, the results will be in range [0,1] suitable for use with unorm formats. It
       can be used in combination with renormalization of the filter weights to do video ranging as part of the convolution effect. It can also
       just be used to increase the brightness of the image.

       Default value is 0.0f.

Author
       Generated automatically by Doxygen for MetalPerformanceShaders.framework from the source code.

Version MetalPerformanceShaders-100				  Thu Feb 8 2018					      MPSImageLaplacian(3)