abs_imageabs_imageabs_imageAbsImageAbsImage (Operator)

Name

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

Signature

Description

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

abs_imageabs_imageabs_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

Example (HDevelop)

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

Result

The operator abs_imageabs_imageabs_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>)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)

See also

convert_image_typeconvert_image_typeconvert_image_typeConvertImageTypeConvertImageType, power_bytepower_bytepower_bytePowerBytePowerByte

Module

Foundation