NAME

MPSImageIntegralOfSquares

SYNOPSIS

#import <MPSImageIntegral.h>

Inherits MPSUnaryImageKernel.

Detailed Description

The MPSImageIntegralOfSquares calculates the sum of squared pixels over a specified region in the image. The value at each position is the sum of all squared pixels in a source image rectangle, sumRect:

sumRect.origin = MPSUnaryImageKernel.offset
sumRect.size = dest_position - MPSUnaryImageKernel.clipRect.origin

If the channels in the source image are normalized, half-float or floating values, the destination image is recommended to be a 32-bit floating-point image. If the channels in the source image are integer values, it is recommended that an appropriate 32-bit integer image destination format is used.

This kernel accepts uint and int textures in addition to unorm and floating-point textures.

Author

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