abs_imageabs_imageAbsImageAbsImageabs_image (算子名称)

名称

abs_imageabs_imageAbsImageAbsImageabs_image — 计算图像的绝对值(模数)。

参数签名

abs_image(Image : ImageAbs : : )

描述

该算子 abs_imageabs_imageAbsImageAbsImageAbsImageabs_image calculates the absolute gray values of images of any type and stores the result in ImageAbsImageAbsImageAbsImageAbsimageAbsimage_abs. The power spectrum of complex images is calculated as a real image. For a ImageImageImageImageimageimage of type 'int1', ImageAbsImageAbsImageAbsImageAbsimageAbsimage_abs is of type byte. For ImageImageImageImageimageimage of other signed types the type of the input image is used for ImageAbsImageAbsImageAbsImageAbsimageAbsimage_abs. The behavior in case of overflows or underflows is undefined. 该算子 abs_imageabs_imageAbsImageAbsImageAbsImageabs_image generates a logical copy of unsigned images.

abs_imageabs_imageAbsImageAbsImageAbsImageabs_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.

运行信息

支持OpenCL计算设备。
多线程类型:可重入(与非独占操作符并行运行)。
多线程作用域:全局(可以从任何线程调用)。
在元组级别自动并行化。
在图像通道级别自动并行化。
Automatically parallelized on domain level.

参数表

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.

ImageAbsImageAbsImageAbsImageAbsimageAbsimage_abs (output_object) (multichannel-)image(-array) → object (byte / int2 / int4 / int8 / real)

Result image(s).

例程 (HDevelop)

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

结果

该算子 abs_imageabs_imageAbsImageAbsImageAbsImageabs_image 返回值 2 ( H_MSG_TRUE) . The behavior in case of empty input (no input images available) is set via 该算子 set_system(::'no_object_result',<Result>:)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>)

参考其它

convert_image_typeconvert_image_typeConvertImageTypeConvertImageTypeConvertImageTypeconvert_image_type, power_bytepower_bytePowerBytePowerBytePowerBytepower_byte

模块

Foundation

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