mojave man page for mpsimagetent

MPSImageTent(3) 					 MetalPerformanceShaders.framework					   MPSImageTent(3)

NAME
       MPSImageTent

SYNOPSIS
       #import <MPSImageConvolution.h>

       Inherits MPSImageBox.

   Additional Inherited Members
Detailed Description
       The box filter, while fast, may yield square-ish looking blur effects. However, multiple passes of the box filter tend to smooth out with
       each additional pass. For example, two 3-wide box blurs produces the same effective convolution as a 5-wide tent blur:

       1   1   1
	   1   1   1
       +       1   1   1
       =================
       1   2   3   2   1

	Addition passes tend to approximate a gaussian line shape.

       The MPSImageTent convolves an image with a tent filter. These form a tent shape with incrementally increasing sides, for example:

       1   2   3   2   1

       1   2   1
       2   4   2
       1   2   1

       Like the box filter, this arrangement allows for much faster algorithms, espcially for for larger blur radii but with a more pleasing
       appearance.

       The tent blur is a separable filter. The implementation is aware of this and will act accordingly to give best performance for multi-
       dimensional blurs.

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

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