mpsnnreduceunary(3) [mojave man page]
MPSNNReduceUnary(3) MetalPerformanceShaders.framework MPSNNReduceUnary(3) NAME
MPSNNReduceUnary SYNOPSIS
#import <MPSNNReduce.h> Inherits MPSCNNKernel. Inherited by MPSNNReduceColumnMax, MPSNNReduceColumnMean, MPSNNReduceColumnMin, MPSNNReduceColumnSum, MPSNNReduceFeatureChannelsMax, MPSNNReduceFeatureChannelsMean, MPSNNReduceFeatureChannelsMin, MPSNNReduceFeatureChannelsSum, MPSNNReduceRowMax, MPSNNReduceRowMean, MPSNNReduceRowMin, and MPSNNReduceRowSum. Instance Methods (nonnull instancetype) - initWithDevice: Properties MTLRegion clipRectSource Additional Inherited Members Detailed Description The MPSNNReduce performs a reduction operation The reduction operations supported are: o Reduce row min o Reduce column min o Reduce feature channels min o Reduce row max o Reduce column max o Reduce feature channels max o Reduce row mean o Reduce column mean o Reduce feature channels mean o Reduce row sum o Reduce column sum o Reduce feature channels sum Method Documentation - (nonnull instancetype) initWithDevice: (nonnull id< MTLDevice >) device Standard init with default properties per filter type Parameters: device The device that the filter will be used on. May not be NULL. Returns: A pointer to the newly initialized object. This will fail, returning nil if the device is not supported. Devices must be MTLFeatureSet_iOS_GPUFamily2_v1 or later. Reimplemented from MPSCNNKernel. Reimplemented in MPSNNReduceFeatureChannelsSum, MPSNNReduceRowMin, MPSNNReduceColumnMin, MPSNNReduceFeatureChannelsMin, MPSNNReduceRowMax, MPSNNReduceColumnMax, MPSNNReduceFeatureChannelsMax, MPSNNReduceRowMean, MPSNNReduceColumnMean, MPSNNReduceFeatureChannelsMean, MPSNNReduceRowSum, and MPSNNReduceColumnSum. Property Documentation - clipRectSource [read], [write], [nonatomic], [assign] The source rectangle to use when reading data. A 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 MPSCNNKernel offset parameter for this filter. The latter is ignored. Default: MPSRectNoClip, use the entire source texture. Author Generated automatically by Doxygen for MetalPerformanceShaders.framework from the source code. Version MetalPerformanceShaders-100 Thu Feb 8 2018 MPSNNReduceUnary(3)
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MPSCNNSpatialNormalization(3) MetalPerformanceShaders.framework MPSCNNSpatialNormalization(3) NAME
MPSCNNSpatialNormalization SYNOPSIS
#import <MPSCNNNormalization.h> Inherits MPSCNNKernel. Instance Methods (nonnull instancetype) - initWithDevice:kernelWidth:kernelHeight: (nullable instancetype) - initWithCoder:device: (nonnull instancetype) - initWithDevice: Properties float alpha float beta float delta NSUInteger kernelWidth NSUInteger kernelHeight Additional Inherited Members Detailed Description This depends on Metal.framework Specifies the spatial normalization filter. The spatial normalization for a feature channel applies the filter over local regions which extend spatially, but are in separate feature channels (i.e., they have shape 1 x kernelWidth x kernelHeight). For each feature channel, the function computes the sum of squares of X inside each rectangle, N2(i,j). It then divides each element of X as follows: Y(i,j) = X(i,j) / (delta + alpha/(kw*kh) * N2(i,j))^beta, where kw and kh are the kernelWidth and the kernelHeight. It is the end-users responsibility to ensure that the combination of the parameters delta and alpha does not result in a situation where the denominator becomes zero - in such situations the resulting pixel-value is undefined. Method Documentation - (nullable instancetype) initWithCoder: (NSCoder *__nonnull) aDecoder(nonnull id< MTLDevice >) device NSSecureCoding 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. Parameters: aDecoder The NSCoder subclass with your serialized MPSKernel device The MTLDevice on which to make the MPSKernel Returns: A new MPSKernel object, or nil if failure. Reimplemented from MPSCNNKernel. - (nonnull instancetype) initWithDevice: (nonnull id< MTLDevice >) device Standard init with default properties per filter type Parameters: device The device that the filter will be used on. May not be NULL. Returns: A pointer to the newly initialized object. This will fail, returning nil if the device is not supported. Devices must be MTLFeatureSet_iOS_GPUFamily2_v1 or later. Reimplemented from MPSCNNKernel. - (nonnull instancetype) initWithDevice: (nonnull id< MTLDevice >) device(NSUInteger) kernelWidth(NSUInteger) kernelHeight Initialize a spatial normalization filter Parameters: device The device the filter will run on kernelWidth The width of the kernel kernelHeight The height of the kernel Returns: A valid MPSCNNSpatialNormalization object or nil, if failure. NOTE: For now, kernelWidth must be equal to kernelHeight Property Documentation - alpha [read], [write], [nonatomic], [assign] The value of alpha. Default is 1.0. Must be non-negative. - beta [read], [write], [nonatomic], [assign] The value of beta. Default is 5.0 - delta [read], [write], [nonatomic], [assign] The value of delta. Default is 1.0 - kernelHeight [read], [nonatomic], [assign] The height of the filter window - kernelWidth [read], [nonatomic], [assign] The width of the filter window Author Generated automatically by Doxygen for MetalPerformanceShaders.framework from the source code. Version MetalPerformanceShaders-100 Thu Feb 8 2018 MPSCNNSpatialNormalization(3)