.TH "MPSCNNYOLOLossNode" 3 "Mon Jul 9 2018" "Version MetalPerformanceShaders-119.3" "MetalPerformanceShaders.framework" \" -*- nroff -*-
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.SH NAME
MPSCNNYOLOLossNode
.SH SYNOPSIS
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.PP
.PP
\fC#import <MPSNNGraphNodes\&.h>\fP
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Inherits \fBMPSNNFilterNode\fP\&.
.SS "Instance Methods"

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.RI "(nonnull instancetype) \- \fBinitWithSource:lossDescriptor:\fP"
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.RI "(\fBMPSNNGradientFilterNode\fP *__nonnull) \- \fBgradientFilterWithSources:\fP"
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.SS "Class Methods"

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.RI "(nonnull instancetype) + \fBnodeWithSource:lossDescriptor:\fP"
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.SS "Properties"

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.RI "\fBMPSNNLabelsNode\fP * \fBinputLabels\fP"
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.SH "Detailed Description"
.PP 
This node calculates loss information during training typically immediately after the inference portion of network evaluation is performed\&. The result image of the loss operations is typically the first gradient image to be comsumed by the gradient passes that work their way back up the graph\&. In addition, the node will update the loss image in the MPSNNLabels with the desired estimate of correctness\&. 
.SH "Method Documentation"
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.SS "\- (\fBMPSNNGradientFilterNode\fP*__nonnull) gradientFilterWithSources: (NSArray< \fBMPSNNImageNode\fP * > *__nonnull) gradientImages"
The loss filter is its own gradient filter and doesn't provide a corresponding gradient node\&.  The image returned by the loss filter is the gradient image to be consumed by the gradient filters corresponding to preceeding inference nodes\&. 
.PP
Reimplemented from \fBMPSNNFilterNode\fP\&.
.SS "\- (nonnull instancetype) initWithSource: (\fBMPSNNImageNode\fP *__nonnull) source(\fBMPSCNNYOLOLossDescriptor\fP *__nonnull) descriptor"

.SS "+ (nonnull instancetype) nodeWithSource: (\fBMPSNNImageNode\fP *__nonnull) source(\fBMPSCNNYOLOLossDescriptor\fP *__nonnull) descriptor"

.SH "Property Documentation"
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.SS "\- (\fBMPSNNLabelsNode\fP*) inputLabels\fC [read]\fP, \fC [nonatomic]\fP, \fC [retain]\fP"
Get the input node for labes and weights, for example to set the handle 

.SH "Author"
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Generated automatically by Doxygen for MetalPerformanceShaders\&.framework from the source code\&.