filter.cl File Reference

Macros
#define	SIGMA_05   true

Functions
__kernel void	gaussianFilter_8bit (__global uchar *inL, __global uchar *inR, __global uchar *Left, __global uchar *Right)
__kernel void	gaussianFilter_8bit_image (__read_only image2d_t inL, __read_only image2d_t inR, __write_only image2d_t left, __write_only image2d_t right)
__kernel void	sobelFilter_8bit (__global uchar *inL, __global uchar *inR, __global uchar *Left, __global uchar *Right)
__kernel void	sobelFilter_8bit_image (__read_only image2d_t inL, __read_only image2d_t inR, __write_only image2d_t left, __write_only image2d_t right)
__kernel void	weightedMedianFilter2_8bit (__global float *disparity, __global uchar *output)

Variables
float constant	gaussian_kernel [25]
float constant	sobel_kernelY [25]
float constant	sobel_kernelX [25]
__constant sampler_t	sampler = CLK_NORMALIZED_COORDS_FALSE | CLK_ADDRESS_CLAMP_TO_EDGE | CLK_FILTER_NEAREST

Macro Definition Documentation

SIGMA_05

#define SIGMA_05   true

Function Documentation

gaussianFilter_8bit()

__kernel void gaussianFilter_8bit	(	__global uchar *	inL,
		__global uchar *	inR,
		__global uchar *	Left,
		__global uchar *	Right
	)

Perform 5x5 Gaussian filtering on an image

Parameters

inL	Left input image
inR	Right input image
Left	The Gaussian filtered left image
Right	The Gaussian filtered right image

gaussianFilter_8bit_image()

__kernel void gaussianFilter_8bit_image	(	__read_only image2d_t	inL,
		__read_only image2d_t	inR,
		__write_only image2d_t	left,
		__write_only image2d_t	right
	)

Perform 5x5 Gaussian filtering on an image (using image2d)

Parameters

inL	Left input image
inR	Right input image
Left	The Gaussian filtered left image
Right	The Gaussian filtered right image

sobelFilter_8bit()

__kernel void sobelFilter_8bit	(	__global uchar *	inL,
		__global uchar *	inR,
		__global uchar *	Left,
		__global uchar *	Right
	)

Perform 5x5 Sobel filtering on an image

Parameters

inL	Left input image
inR	Right input image
Left	The Sobel filtered left image
Right	The Sobel filtered right image

sobelFilter_8bit_image()

__kernel void sobelFilter_8bit_image	(	__read_only image2d_t	inL,
		__read_only image2d_t	inR,
		__write_only image2d_t	left,
		__write_only image2d_t	right
	)

Perform 5x5 Sobel filtering on an image (using image2d)

Parameters

inL	Left input image
inR	Right input image
Left	The Sobel filtered left image
Right	The Sobel filtered right image

weightedMedianFilter2_8bit()

__kernel void weightedMedianFilter2_8bit	(	__global float *	disparity,
		__global uchar *	output
	)

Perform Weighted Median Filtering as a post-processing on the disparity map

Parameters

disparity	Input disparity map
output	Output post-processed image

Variable Documentation

gaussian_kernel

float constant gaussian_kernel[25]

Initial value:

= { 0.003765f, 0.015019f, 0.023792f, 0.015019f, 0.003765f,
0.015019f, 0.059912f, 0.094907f, 0.059912f, 0.015019f,
0.023792f, 0.094907f, 0.150342f, 0.094907f, 0.023792f,
0.015019f, 0.059912f, 0.094907f, 0.059912f, 0.015019f,
0.003765f, 0.015019f, 0.023792f, 0.015019f, 0.003765f }

sampler

__constant sampler_t sampler = CLK_NORMALIZED_COORDS_FALSE | CLK_ADDRESS_CLAMP_TO_EDGE | CLK_FILTER_NEAREST

sobel_kernelX

float constant sobel_kernelX[25]

Initial value:

= { -0.41666f, -0.06666f,  -0.08333f, -0.06666f,  -0.41666f,
-0.03333f, -0.08333f,  -0.16666f, -0.08333f,  -0.03333f,
0.0f,        0.0f,       0.0f,      0.0f,       0.0f,
0.03333f,  0.08333f,   0.16666f,  0.08333f,   0.03333f,
0.41666f,  0.06666f,   0.08333f,  0.06666f,   0.41666f }

sobel_kernelY

float constant sobel_kernelY[25]

Initial value:

= { -0.41666f,  -0.03333f,  0.0f,  0.03333f,  0.41666f,
-0.06666f,  -0.08333f,  0.0f,  0.08333f,  0.06666f,
-0.08333f,  -0.16666f,  0.0f,  0.16666f,  0.08333f,
-0.06666f,  -0.08333f,  0.0f,  0.08333f,  0.06666f,
-0.41666f,  -0.03333f,  0.0f,  0.03333f,  0.41666f }