IntensityIntegral2d
Computes the sum of all pixel intensities of a two-dimensional image.
Access to parameter description
For an introduction: section Image Analysis.
In the continuous case, the 2D intensity integral of an object $X$ is defined as: $$ V(X)=\int_{R^2}I(x,y)dxdy $$
In the discrete case, intensity integral is approximated by the sum of the pixel intensities in X: $$ V(X)=\sum_{i,j}I(x_i,y_j) $$ where $I(x_i,y_j)$ = the intensity of pixel of coordinates $x_i,y_j$
On a grayscale image, this algorithm computes the sum of gray values in the image.
This algorithm takes into account the pixel size given by the input image calibration property. Each pixel intensity is multiplied by the pixels size in the X and Y directions before to be added to the result.
On a binary image it amounts to compute a 2D area.
See also
Access to parameter description
For an introduction: section Image Analysis.
In the continuous case, the 2D intensity integral of an object $X$ is defined as: $$ V(X)=\int_{R^2}I(x,y)dxdy $$
In the discrete case, intensity integral is approximated by the sum of the pixel intensities in X: $$ V(X)=\sum_{i,j}I(x_i,y_j) $$ where $I(x_i,y_j)$ = the intensity of pixel of coordinates $x_i,y_j$
On a grayscale image, this algorithm computes the sum of gray values in the image.
This algorithm takes into account the pixel size given by the input image calibration property. Each pixel intensity is multiplied by the pixels size in the X and Y directions before to be added to the result.
On a binary image it amounts to compute a 2D area.
See also
Function Syntax
This function returns the outputMeasurement output parameter.
// Function prototype. IntensityIntegral2dMsr::Ptr intensityIntegral2d( std::shared_ptr< iolink::ImageView > inputImage, IntensityIntegral2dMsr::Ptr outputMeasurement = NULL );
This function returns the outputMeasurement output parameter.
// Function prototype. intensity_integral_2d( input_image, output_measurement = None )
This function returns the outputMeasurement output parameter.
// Function prototype. public static IntensityIntegral2dMsr IntensityIntegral2d( IOLink.ImageView inputImage, IntensityIntegral2dMsr outputMeasurement = null );
Class Syntax
Parameters
| Class Name | IntensityIntegral2d |
|---|
| Parameter Name | Description | Type | Supported Values | Default Value | |
|---|---|---|---|---|---|
 |
inputImage |
The 2D binary or grayscale input image. | Image | Binary, Label, Grayscale or Multispectral | nullptr |
 |
outputMeasurement |
The output measurement results. | IntensityIntegral2dMsr | nullptr | |
Object Examples
std::shared_ptr< iolink::ImageView > polystyrene = ioformat::readImage( std::string( IMAGEDEVDATA_IMAGES_FOLDER ) + "polystyrene.tif" ); IntensityIntegral2d intensityIntegral2dAlgo; intensityIntegral2dAlgo.setInputImage( polystyrene ); intensityIntegral2dAlgo.execute(); std::cout << "intensityIntegral: " << intensityIntegral2dAlgo.outputMeasurement()->intensityIntegral( 0 ) ;
polystyrene = ioformat.read_image(imagedev_data.get_image_path("polystyrene.tif"))
intensity_integral_2d_algo = imagedev.IntensityIntegral2d()
intensity_integral_2d_algo.input_image = polystyrene
intensity_integral_2d_algo.execute()
print( "intensityIntegral: ", str( intensity_integral_2d_algo.output_measurement.intensity_integral( 0 ) ) )
ImageView polystyrene = ViewIO.ReadImage( @"Data/images/polystyrene.tif" );
IntensityIntegral2d intensityIntegral2dAlgo = new IntensityIntegral2d
{
inputImage = polystyrene
};
intensityIntegral2dAlgo.Execute();
Console.WriteLine( "intensityIntegral: " + intensityIntegral2dAlgo.outputMeasurement.intensityIntegral( 0 ) );
Function Examples
std::shared_ptr< iolink::ImageView > polystyrene = ioformat::readImage( std::string( IMAGEDEVDATA_IMAGES_FOLDER ) + "polystyrene.tif" ); auto result = intensityIntegral2d( polystyrene ); std::cout << "intensityIntegral: " << result->intensityIntegral( 0 ) ;
polystyrene = ioformat.read_image(imagedev_data.get_image_path("polystyrene.tif"))
result = imagedev.intensity_integral_2d( polystyrene )
print( "intensityIntegral: ", str( result.intensity_integral( 0 ) ) )
ImageView polystyrene = ViewIO.ReadImage( @"Data/images/polystyrene.tif" ); IntensityIntegral2dMsr result = Processing.IntensityIntegral2d( polystyrene ); Console.WriteLine( "intensityIntegral: " + result.intensityIntegral( 0 ) );