ImageDev

ColorAntialiasing2d

Reduces color artifacts with a demosaicing algorithm.

Access to parameter description

This algorithm reduces the color artifacts. These artifacts can occur when a color image is acquired with a camera equipped with a single sensor array.
Each individual sensor is able to capture only a single color because of the arrangement of color films or dyes between the sensor and the lens.
A demosaicing algorithm is a method for reconstructing a full three-color representation of color images by estimating the missing pixel components in each color plane.

The algorithm repeats several times the following process: The mean is computed in square window with user-defined side.
The number of times that the process is iterated is also user-defined.

<b>Figure 1.</b> Antialiasing effect.
Figure 1. Antialiasing effect.

See also

Function Syntax

This function returns the outputColorImage output parameter. 
// Function prototype.
std::shared_ptr< iolink::ImageView >
colorAntialiasing2d( std::shared_ptr< iolink::ImageView > inputColorImage,
                     int32_t kernelSize,
                     int32_t numberOfIterations,
                     std::shared_ptr< iolink::ImageView > outputColorImage = NULL );
This function returns the outputColorImage output parameter. 
// Function prototype.
color_antialiasing_2d( input_color_image,
                       kernel_size = 3,
                       number_of_iterations = 1,
                       output_color_image = None )
This function returns the outputColorImage output parameter. 
// Function prototype.
public static IOLink.ImageView
ColorAntialiasing2d( IOLink.ImageView inputColorImage,
                     Int32 kernelSize = 3,
                     Int32 numberOfIterations = 1,
                     IOLink.ImageView outputColorImage = null );

Class Syntax

Parameters

Class Name ColorAntialiasing2d

Parameter Name Description Type Supported Values Default Value
input
inputColorImage
The color input image. Image Multispectral nullptr
input
kernelSize
The size of the kernel (the side in pixels of the square window). Int32 >=1 3
input
numberOfIterations
The number of iterations of the demosaicing process (must be a positive integer). Int32 >=1 1
output
outputColorImage
The color output image. Its dimensions and type are forced to the same values as the input. Image nullptr

Object Examples

std::shared_ptr< iolink::ImageView > ateneub = ioformat::readImage( std::string( IMAGEDEVDATA_IMAGES_FOLDER ) + "ateneub.jpg" );

ColorAntialiasing2d colorAntialiasing2dAlgo;
colorAntialiasing2dAlgo.setInputColorImage( ateneub );
colorAntialiasing2dAlgo.setKernelSize( 3 );
colorAntialiasing2dAlgo.setNumberOfIterations( 1 );
colorAntialiasing2dAlgo.execute();

std::cout << "outputColorImage:" << colorAntialiasing2dAlgo.outputColorImage()->toString();

ateneub = ioformat.read_image(imagedev_data.get_image_path("ateneub.jpg"))

color_antialiasing_2d_algo = imagedev.ColorAntialiasing2d()
color_antialiasing_2d_algo.input_color_image = ateneub
color_antialiasing_2d_algo.kernel_size = 3
color_antialiasing_2d_algo.number_of_iterations = 1
color_antialiasing_2d_algo.execute()

print( "output_color_image:", str( color_antialiasing_2d_algo.output_color_image ) );

ImageView ateneub = ViewIO.ReadImage( @"Data/images/ateneub.jpg" );

ColorAntialiasing2d colorAntialiasing2dAlgo = new ColorAntialiasing2d
{
    inputColorImage = ateneub,
    kernelSize = 3,
    numberOfIterations = 1
};
colorAntialiasing2dAlgo.Execute();

Console.WriteLine( "outputColorImage:" + colorAntialiasing2dAlgo.outputColorImage.ToString() );

Function Examples

std::shared_ptr< iolink::ImageView > ateneub = ioformat::readImage( std::string( IMAGEDEVDATA_IMAGES_FOLDER ) + "ateneub.jpg" );

auto result = colorAntialiasing2d( ateneub, 3, 1 );

std::cout << "outputColorImage:" << result->toString();

ateneub = ioformat.read_image(imagedev_data.get_image_path("ateneub.jpg"))

result = imagedev.color_antialiasing_2d( ateneub, 3, 1 )

print( "output_color_image:", str( result ) );

ImageView ateneub = ViewIO.ReadImage( @"Data/images/ateneub.jpg" );

IOLink.ImageView result = Processing.ColorAntialiasing2d( ateneub, 3, 1 );

Console.WriteLine( "outputColorImage:" + result.ToString() );