abs_imageabs_imageAbsImageabs_imageAbsImageAbsImage (Operator)

Name

abs_imageabs_imageAbsImageabs_imageAbsImageAbsImage — Calculate the absolute value (modulus) of an image.

The operator abs_imageabs_imageAbsImageabs_imageAbsImageAbsImage calculates the absolute gray values of images of any type and stores the result in ImageAbsImageAbsImageAbsImageAbsImageAbsimageAbs. The power spectrum of complex images is calculated as a 'real' image. The operator abs_imageabs_imageAbsImageabs_imageAbsImageAbsImage generates a logical copy of unsigned images.

abs_imageabs_imageAbsImageabs_imageAbsImageAbsImage can be executed on an OpenCL device for int1, int2, int4, real, and complex images. However, since for OpenCL 1.0 only single precision floating point is supported for all devices, and not all rounding modes are supported, the OpenCL implementation can produce slightly different results from the scalar or SIMD implementations.

Parallelization

Supports OpenCL compute devices.
Multithreading type: reentrant (runs in parallel with non-exclusive operators).
Multithreading scope: global (may be called from any thread).
Automatically parallelized on tuple level.
Automatically parallelized on channel level.
Automatically parallelized on domain level.

Parameters

ImageImageImageImageImageimage (input_object) (multichannel-)image(-array) → object (int1* / int2* / int4* / int8 / real* / complex*) *allowed for compute devices

Image(s) for which the absolute gray values are to be calculated.

ImageAbsImageAbsImageAbsImageAbsImageAbsimageAbs (output_object) (multichannel-)image(-array) → object (int1 / int2 / int4 / int8 / real)

Result image(s).

Example (HDevelop)

convert_image_type (Image, ImageInt2, 'int2')
texture_laws (ImageInt2, ImageTexture, 'el', 2, 5)
abs_image (ImageTexture, ImageTexture)

Result

The operator abs_imageabs_imageAbsImageabs_imageAbsImageAbsImage returns the value 2 (H_MSG_TRUE). The behavior in case of empty input (no input images available) is set via the operator set_system(::'no_object_result',<Result>:)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)

Module

Foundation

Operators