abs_image — Calculate the absolute value (modulus) of an image.
The operator abs_image calculates the absolute gray values of images of any type and stores the result in ImageAbs. The power spectrum of complex images is calculated as a 'real' image. The operator abs_image generates a logical copy of unsigned images.
abs_image 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.
Image(s) for which the absolute gray values are to be calculated.
convert_image_type (Image, ImageInt2, 'int2') texture_laws (ImageInt2, ImageTexture, 'el', 2, 5) abs_image (ImageTexture, ImageTexture)
The operator abs_image 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>:)