#include <rsCppStructs.h>

Inheritance diagram for android::RSC::ScriptIntrinsicHistogram:

Public Member Functions
void	setOutput (sp< Allocation > aout)
void	setDotCoefficients (float r, float g, float b, float a)
void	forEach (sp< Allocation > ain)
void	forEach_dot (sp< Allocation > ain)
Static Public Member Functions
static sp < ScriptIntrinsicHistogram >	create (sp< RS > rs)

Detailed Description

Intrinsic for computing a histogram.

Definition at line 1699 of file rsCppStructs.h.

Member Function Documentation

static sp<ScriptIntrinsicHistogram> android::RSC::ScriptIntrinsicHistogram::create ( sp< RS > rs ) [static]

Create an intrinsic for calculating the histogram of an uchar or uchar4 image.

Supported elements types are U8_4, U8_3, U8_2, and U8.

Parameters:

[in]	rs	The RenderScript context
[in]	e	Element type for inputs

Returns:: ScriptIntrinsicHistogram

void android::RSC::ScriptIntrinsicHistogram::forEach ( sp< Allocation > ain )

Process an input buffer and place the histogram into the output allocation. The output allocation may be a narrower vector size than the input. In this case the vector size of the output is used to determine how many of the input channels are used in the computation. This is useful if you have an RGBA input buffer but only want the histogram for RGB.

1D and 2D input allocations are supported.

Parameters:

[in] ain The input image

void android::RSC::ScriptIntrinsicHistogram::forEach_dot ( sp< Allocation > ain )

Process an input buffer and place the histogram into the output allocation. The dot product of the input channel and the coefficients from 'setDotCoefficients' are used to calculate the output values.

1D and 2D input allocations are supported.

Parameters:

ain	The input image

void android::RSC::ScriptIntrinsicHistogram::setDotCoefficients	(	float	r,
		float	g,
		float	b,
		float	a
	)

Set the coefficients used for the dot product calculation. The default is {0.299f, 0.587f, 0.114f, 0.f}.

Coefficients must be >= 0 and sum to 1.0 or less.

Parameters:

[in]	r	Red coefficient
[in]	g	Green coefficient
[in]	b	Blue coefficient
[in]	a	Alpha coefficient

void android::RSC::ScriptIntrinsicHistogram::setOutput ( sp< Allocation > aout )

Set the output of the histogram. 32 bit integer types are supported.

Parameters:

[in] aout The output allocation

The documentation for this class was generated from the following file:

rsCppStructs.h

Public Member Functions

Static Public Member Functions

Detailed Description

Member Function Documentation