abs_image ( Image : ImageAbs : : )

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.


Parameters

Image (input_object)
(multichannel-)image(-array) -> object : int1 / int2 / int4 / real / complex
Image(s) for which the absolute gray values are to be calculated.

ImageAbs (output_object)
(multichannel-)image(-array) -> object : int1 / int2 / int4 / real
Result image(s).


Example
laws_int2(Image,&Texture,0,5);
abs_image(Texture,Abs);

Result

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>:)


Parallelization Information

abs_image is reentrant and automatically parallelized (on tuple level, channel level, domain level).


See also

convert_image_type, power_byte


Module

Image filters



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