MPSImageLaplacianPyramiMetalPerformanceShaders.framMPSImageLaplacianPyramid(3)
NAME
MPSImageLaplacianPyramid -
SYNOPSIS
#import <MPSImageConvolution.h>
Inherits MPSImagePyramid.
Additional Inherited Members
Detailed Description
The Laplacian image pyramid is constructed from the Gaussian pyramid.
At level 'l' of the pyramid the level 'l+1' of the Gaussian pyramid is
expanded to double its size by duplicating the rows and columns of the
the level, then filtered with the same convolution kernel as the
Gaussian pyramid and finally subtracted from the level 'l' of the
Gaussian pyramid.
When encoding the Laplacian image pyramid kernel to the commandbuffer
one must pass as the source image the Gaussian image pyramid, which is
used to construct the Laplacian pyramid. If the source image contains
mipmap levels up to level 'l', then the Laplacian pyramid will be
constructed up to mipmap level 'l-1', or up to the level present in the
destination image in case it is lower than 'l-1'.
Author
Generated automatically by Doxygen for
MetalPerformanceShaders.framework from the source code.
Version MetalPerformanceShaders-Thu Dec 10 2015 MPSImageLaplacianPyramid(3)
Mac OS X 10.12.3 - Generated Tue Feb 7 18:26:53 CST 2017