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CUDAOpening[img,r]

gives the morphological opening of img with respect to a range-r square.

CUDAOpening[list,r]

gives the morphological opening of list with respect to a range-r square.

CUDAOpening[mem,r]

gives the morphological opening of mem with respect to a range-r square.

更多信息和选项
Details and Options Details and Options
范例  
基本范例  
参见
技术笔记
相关指南
按以下格式引用：
CUDALink`
CUDALink`

CUDAOpening

CUDAOpening[img,r]

gives the morphological opening of img with respect to a range-r square.

CUDAOpening[list,r]

gives the morphological opening of list with respect to a range-r square.

CUDAOpening[mem,r]

gives the morphological opening of mem with respect to a range-r square.

更多信息和选项

  • The CUDALink application must be loaded using Needs["CUDALink`"].
  • CUDAOpening works with binary, grayscale, and other images.
  • CUDAOpening[image,r] is equivalent to Opening[image,r].
  • If multiple image channels are present, CUDAOpening operates on each of them separately.
  • The following options can be given:
  • "Device"Automaticdevice used for CUDA computation
    Padding"Fixed"value used on boundary
    "OutputMemory"NoneCUDAMemory where output is stored

范例

基本范例  (5)

First, load the CUDALink application:

Wolfram Language code: Needs["CUDALink`"]

Use morphological opening to extract objects larger than the structuring element:

Wolfram Language code: CUDAOpening[[image], 4]

The radius can be varied:

Wolfram Language code: CUDAOpening[[image], 7]

CUDAOpening works with lists:

Wolfram Language code: MatrixForm[CUDAOpening[RandomInteger[{0, 255}, {5, 5, 3}], 1]]

CUDAOpening works with graphics objects:

Wolfram Language code: CUDAOpening[\!\(\*Graphics3DBox[«7»]\), 5]

Using CUDAMemory, you can speed up computation by reducing the time spent on memory operations. This loads memory onto the GPU:

Wolfram Language code: mem = CUDAMemoryLoad[[image]];

This performs the opening operation:

Wolfram Language code: CUDAOpening[mem, 1]

This gets the memory back to the CPU:

Wolfram Language code: CUDAMemoryGet[%]

Memory must be deleted:

Wolfram Language code: CUDAMemoryUnload[mem]
Wolfram Research (2010)，CUDAOpening，Wolfram 语言函数，https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html.

文本

Wolfram Research (2010)，CUDAOpening，Wolfram 语言函数，https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html.

CMS

Wolfram 语言. 2010. "CUDAOpening." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html.

APA

Wolfram 语言. (2010). CUDAOpening. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html 年

BibTeX

@misc{reference.wolfram_2026_cudaopening, author="Wolfram Research", title="{CUDAOpening}", year="2010", howpublished="\url{https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html}", note=[Accessed: 15-August-2026]}

BibLaTeX

@online{reference.wolfram_2026_cudaopening, organization={Wolfram Research}, title={CUDAOpening}, year={2010}, url={https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html}, note=[Accessed: 15-August-2026]}