MPSCNNNeuronLogarithm(3)

NAME
MPSCNNNeuronLogarithm

SYNOPSIS

#import <MPSCNNNeuron.h>

Inherits MPSCNNNeuron.

  Instance Methods
(nonnull instancetype) - initWithDevice:a:b:c:
(nonnull instancetype) - initWithDevice:

  Additional Inherited Members

Detailed Description

This depends on Metal.framework. Specifies the Logarithm neuron filter. For each pixel, applies the following function: f(x) = log_c(a * x + b).

If the value of c is -1.0f, the base (c) is set to e.

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 MPSCNNNeuron.

  - (nonnull instancetype) initWithDevice: (nonnull id< MTLDevice >) device(float) a(float) b(float) c
Initialize a Logarithm neuron filter.

Parameters:
    device The device the filter will run on.
    a Filter property 'a'. See class discussion.
    b Filter property 'b'. See class discussion.
    c Filter property 'c'. See class discussion.

Returns:
    A valid MPSCNNNeuronLogarithm object or nil, if failure.

Author

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