bit_maskbit_maskBitMaskBitMaskbit_mask (算子名称)

名称

bit_maskbit_maskBitMaskBitMaskbit_mask — Logical “AND” of each pixel using a bit mask.

参数签名

bit_mask(Image : ImageMask : BitMask : )

描述

The operator bit_maskbit_maskBitMaskBitMaskBitMaskbit_mask carries out an “and” operation of each pixel with a fixed mask. The semantics of the “and” operation corresponds to that of C for the respective types (signed char, unsigned char, unsigned short, short, int/long). Only the pixels within the definition range of the image are processed.

Several images can be processed in one call. An output image is generated for every input image.

运行信息

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.

参数表

ImageImageImageImageimageimage (input_object) (multichannel-)image(-array) → object (byte / direction / cyclic / int1 / int2 / uint2 / int4)

Input image(s).

ImageMaskImageMaskImageMaskImageMaskimageMaskimage_mask (output_object) (multichannel-)image(-array) → object (byte / direction / cyclic / int1 / int2 / uint2 / int4)

Result image(s) by combination with mask.

BitMaskBitMaskBitMaskBitMaskbitMaskbit_mask (input_control) integer → (integer)

Bit field

Default: 128

Suggested values: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096

结果

If the images are correct (type) the operator bit_maskbit_maskBitMaskBitMaskBitMaskbit_mask 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>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>) If necessary an exception is raised.

可能的后置算子

thresholdthresholdThresholdThresholdThresholdthreshold, bit_orbit_orBitOrBitOrBitOrbit_or

可替代算子

bit_slicebit_sliceBitSliceBitSliceBitSlicebit_slice

参考其它

bit_andbit_andBitAndBitAndBitAndbit_and, bit_lshiftbit_lshiftBitLshiftBitLshiftBitLshiftbit_lshift

模块

Foundation

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