PolarToCartesian2d
Transforms a pair of module and phase two-dimensional images into a pair of real and imaginary part images.
Access to parameter description
For an introduction: see section Frequency Domain.
This algorithm computes the polar-to-cartesian transformation or module/phase to the real/imaginary image transformation.
If $I_1$ is the module image and $I_2$ the phase image, then:
Access to parameter description
For an introduction: see section Frequency Domain.
This algorithm computes the polar-to-cartesian transformation or module/phase to the real/imaginary image transformation.
If $I_1$ is the module image and $I_2$ the phase image, then:
- Real part or $X$ coordinate $O_1$ is defined as: $O_1(n,m)=I_1(n,m)\cos(I_2(n,m))$
- Imaginary part or $Y$ coordinate $O_2$ is defined as: $O_2(n,m)=I_1(n,m)\sin(I_2(n,m))$
Function Syntax
This function returns a PolarToCartesian2dOutput structure containing the outputRealImage and outputImaginaryImage output parameters.
// Output structure.
struct PolarToCartesian2dOutput
{
std::shared_ptr< iolink::ImageView > outputRealImage;
std::shared_ptr< iolink::ImageView > outputImaginaryImage;
};
// Function prototype.
PolarToCartesian2dOutput
polarToCartesian2d( std::shared_ptr< iolink::ImageView > inputModulusImage,
std::shared_ptr< iolink::ImageView > inputPhaseImage,
std::shared_ptr< iolink::ImageView > outputRealImage = NULL,
std::shared_ptr< iolink::ImageView > outputImaginaryImage = NULL );
This function returns a tuple containing the output_real_image and output_imaginary_image output parameters.
// Function prototype.
polar_to_cartesian_2d( input_modulus_image,
input_phase_image,
output_real_image = None,
output_imaginary_image = None )
This function returns a PolarToCartesian2dOutput structure containing the outputRealImage and outputImaginaryImage output parameters.
/// Output structure of the PolarToCartesian2d function.
public struct PolarToCartesian2dOutput
{
public IOLink.ImageView outputRealImage;
public IOLink.ImageView outputImaginaryImage;
};
// Function prototype.
public static PolarToCartesian2dOutput
PolarToCartesian2d( IOLink.ImageView inputModulusImage,
IOLink.ImageView inputPhaseImage,
IOLink.ImageView outputRealImage = null,
IOLink.ImageView outputImaginaryImage = null );
Class Syntax
Parameters
| Class Name | PolarToCartesian2d |
|---|
| Parameter Name | Description | Type | Supported Values | Default Value | |
|---|---|---|---|---|---|
 |
inputModulusImage |
The modulus input image. It must be a floating point image. | Image | Grayscale or Multispectral | nullptr |
|
inputPhaseImage |
The phase input image. This image must have same dimensions and data type as the modulus input image. | Image | Grayscale or Multispectral | nullptr |
 |
outputRealImage |
The output real part image. Its dimensions and type are forced to the same values as the input. | Image | nullptr | |
|
outputImaginaryImage |
The output imaginary part image. Its dimensions and type are forced to the same values as the input. | Image | nullptr | |
Object Examples
auto polystyrene_float = readVipImage( std::string( IMAGEDEVDATA_IMAGES_FOLDER ) + "polystyrene_float.vip" ); PolarToCartesian2d polarToCartesian2dAlgo; polarToCartesian2dAlgo.setInputModulusImage( polystyrene_float ); polarToCartesian2dAlgo.setInputPhaseImage( polystyrene_float ); polarToCartesian2dAlgo.execute(); std::cout << "outputRealImage:" << polarToCartesian2dAlgo.outputRealImage()->toString(); std::cout << "outputImaginaryImage:" << polarToCartesian2dAlgo.outputImaginaryImage()->toString();
polystyrene_float = imagedev.read_vip_image(imagedev_data.get_image_path("polystyrene_float.vip"))
polar_to_cartesian_2d_algo = imagedev.PolarToCartesian2d()
polar_to_cartesian_2d_algo.input_modulus_image = polystyrene_float
polar_to_cartesian_2d_algo.input_phase_image = polystyrene_float
polar_to_cartesian_2d_algo.execute()
print( "output_real_image:", str( polar_to_cartesian_2d_algo.output_real_image ) );
print( "output_imaginary_image:", str( polar_to_cartesian_2d_algo.output_imaginary_image ) );
ImageView polystyrene_float = Data.ReadVipImage( @"Data/images/polystyrene_float.vip" );
PolarToCartesian2d polarToCartesian2dAlgo = new PolarToCartesian2d
{
inputModulusImage = polystyrene_float,
inputPhaseImage = polystyrene_float
};
polarToCartesian2dAlgo.Execute();
Console.WriteLine( "outputRealImage:" + polarToCartesian2dAlgo.outputRealImage.ToString() );
Console.WriteLine( "outputImaginaryImage:" + polarToCartesian2dAlgo.outputImaginaryImage.ToString() );
Function Examples
auto polystyrene_float = readVipImage( std::string( IMAGEDEVDATA_IMAGES_FOLDER ) + "polystyrene_float.vip" ); auto result = polarToCartesian2d( polystyrene_float, polystyrene_float ); std::cout << "outputRealImage:" << result.outputRealImage->toString(); std::cout << "outputImaginaryImage:" << result.outputImaginaryImage->toString();
polystyrene_float = imagedev.read_vip_image(imagedev_data.get_image_path("polystyrene_float.vip"))
result_output_real_image, result_output_imaginary_image = imagedev.polar_to_cartesian_2d( polystyrene_float, polystyrene_float )
print( "output_real_image:", str( result_output_real_image ) );
print( "output_imaginary_image:", str( result_output_imaginary_image ) );
ImageView polystyrene_float = Data.ReadVipImage( @"Data/images/polystyrene_float.vip" ); Processing.PolarToCartesian2dOutput result = Processing.PolarToCartesian2d( polystyrene_float, polystyrene_float ); Console.WriteLine( "outputRealImage:" + result.outputRealImage.ToString() ); Console.WriteLine( "outputImaginaryImage:" + result.outputImaginaryImage.ToString() );