pulp::canvas::ImageConvolutionKernel Class Reference

NxN convolution kernel for image processing. More...

#include <image_convolution.hpp>

Public Member Functions
	ImageConvolutionKernel (int size)
	Create an NxN kernel (must be odd: 3, 5, 7, etc.).
void	set (int row, int col, float value)
	Set a kernel value at (row, col).
float	get (int row, int col) const
	Get a kernel value.
int	size () const
	Kernel size.
void	apply (uint8_t *pixels, int width, int height, int stride=0) const
	Apply the kernel to RGBA image data (in-place).

Static Public Member Functions
static ImageConvolutionKernel	gaussian_blur_3 ()
	Gaussian blur (3x3).
static ImageConvolutionKernel	gaussian_blur_5 ()
	Gaussian blur (5x5).
static ImageConvolutionKernel	sharpen ()
	Sharpen kernel (3x3).
static ImageConvolutionKernel	edge_detect ()
	Edge detection (Sobel-like, 3x3).
static ImageConvolutionKernel	emboss ()
	Emboss (3x3).

Detailed Description

NxN convolution kernel for image processing.

Constructor & Destructor Documentation

ImageConvolutionKernel()

pulp::canvas::ImageConvolutionKernel::ImageConvolutionKernel ( int size )

inlineexplicit

Create an NxN kernel (must be odd: 3, 5, 7, etc.).

Member Function Documentation

apply()

void pulp::canvas::ImageConvolutionKernel::apply ( uint8_t * pixels, int width, int height, int stride = 0 ) const

inline

Apply the kernel to RGBA image data (in-place).

edge_detect()

ImageConvolutionKernel pulp::canvas::ImageConvolutionKernel::edge_detect ( )

inlinestatic

Edge detection (Sobel-like, 3x3).

emboss()

ImageConvolutionKernel pulp::canvas::ImageConvolutionKernel::emboss ( )

inlinestatic

Emboss (3x3).

gaussian_blur_3()

ImageConvolutionKernel pulp::canvas::ImageConvolutionKernel::gaussian_blur_3 ( )

inlinestatic

Gaussian blur (3x3).

gaussian_blur_5()

ImageConvolutionKernel pulp::canvas::ImageConvolutionKernel::gaussian_blur_5 ( )

inlinestatic

Gaussian blur (5x5).

get()

float pulp::canvas::ImageConvolutionKernel::get ( int row, int col ) const

inline

Get a kernel value.

set()

void pulp::canvas::ImageConvolutionKernel::set ( int row, int col, float value )

inline

Set a kernel value at (row, col).

sharpen()

ImageConvolutionKernel pulp::canvas::ImageConvolutionKernel::sharpen ( )

inlinestatic

Sharpen kernel (3x3).

size()

int pulp::canvas::ImageConvolutionKernel::size ( ) const

inline

Kernel size.

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

• /home/runner/work/pulp/pulp/core/canvas/include/pulp/canvas/image_convolution.hpp