.TH "MPSImageStatisticsMinAndMax" 3 "Mon Jul 9 2018" "Version MetalPerformanceShaders-119.3" "MetalPerformanceShaders.framework" \" -*- nroff -*- .ad l .nh .SH NAME MPSImageStatisticsMinAndMax .SH SYNOPSIS .br .PP .PP \fC#import \fP .PP Inherits \fBMPSUnaryImageKernel\fP\&. .SS "Instance Methods" .in +1c .ti -1c .RI "(nonnull instancetype) \- \fBinitWithDevice:\fP" .br .ti -1c .RI "(nullable instancetype) \- \fBinitWithCoder:device:\fP" .br .in -1c .SS "Properties" .in +1c .ti -1c .RI "MTLRegion \fBclipRectSource\fP" .br .in -1c .SS "Additional Inherited Members" .SH "Detailed Description" .PP \fBMPSImageStatistics\&.h\fP MetalPerformanceShaders\&.framework .PP \fBCopyright:\fP .RS 4 Copyright (c) 2016 Apple Inc\&. All rights reserved\&. MetalPerformanceShaders image statistics filters .RE .PP The \fBMPSImageStatisticsMinAndMax\fP computes the minimum and maximum pixel values for a given region of an image\&. The min and max values are written to the destination image at the following pixel locations: .IP "\(bu" 2 min value is written at pixel location (0, 0) .IP "\(bu" 2 max value is written at pixel location (1, 0) .PP .SH "Method Documentation" .PP .SS "\- (nullable instancetype) \fBinitWithCoder:\fP (NSCoder *__nonnull) aDecoder(nonnull id< MTLDevice >) device" \fBNSSecureCoding\fP compatability While the standard NSSecureCoding/NSCoding method -initWithCoder: should work, since the file can't know which device your data is allocated on, we have to guess and may guess incorrectly\&. To avoid that problem, use initWithCoder:device instead\&. .PP \fBParameters:\fP .RS 4 \fIaDecoder\fP The NSCoder subclass with your serialized \fBMPSKernel\fP .br \fIdevice\fP The MTLDevice on which to make the \fBMPSKernel\fP .RE .PP \fBReturns:\fP .RS 4 \fBA\fP new \fBMPSKernel\fP object, or nil if failure\&. .RE .PP .PP Reimplemented from \fBMPSUnaryImageKernel\fP\&. .SS "\- (nonnull instancetype) initWithDevice: (nonnull id< MTLDevice >) device" Specifies information to apply the statistics min-max operation on an image\&. .PP \fBParameters:\fP .RS 4 \fIdevice\fP The device the filter will run on .RE .PP \fBReturns:\fP .RS 4 \fBA\fP valid \fBMPSImageStatisticsMinAndMax\fP object or nil, if failure\&. .RE .PP .PP Reimplemented from \fBMPSUnaryImageKernel\fP\&. .SH "Property Documentation" .PP .SS "\- clipRectSource\fC [read]\fP, \fC [write]\fP, \fC [nonatomic]\fP, \fC [assign]\fP" The source rectangle to use when reading data\&. \fBA\fP MTLRegion that indicates which part of the source to read\&. If the clipRectSource does not lie completely within the source image, the intersection of the image bounds and clipRectSource will be used\&. The clipRectSource replaces the \fBMPSUnaryImageKernel\fP offset parameter for this filter\&. The latter is ignored\&. Default: MPSRectNoClip, use the entire source texture\&. .PP The clipRect specified in \fBMPSUnaryImageKernel\fP is used to control the origin in the destination texture where the min, max values are written\&. The clipRect\&.width must be >=2\&. The clipRect\&.height must be >= 1\&. .SH "Author" .PP Generated automatically by Doxygen for MetalPerformanceShaders\&.framework from the source code\&.