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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.

Details and Options

  • 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

Examples

Basic Examples  (5)Summary of the most common use cases

First, load the CUDALink application:

In[1]:=1
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https://wolfram.com/xid/0cer7h7p4pr1m44sijmazvju6-9h8a50

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

In[2]:=2
✖
https://wolfram.com/xid/0cer7h7p4pr1m44sijmazvju6-eifnxu
Out[2]=2

The radius can be varied:

In[1]:=1
✖
https://wolfram.com/xid/0cer7h7p4pr1m44sijmazvju6-400cb1
Out[1]=1

CUDAOpening works with lists:

In[1]:=1
✖
https://wolfram.com/xid/0cer7h7p4pr1m44sijmazvju6-hjc1w

CUDAOpening works with graphics objects:

In[1]:=1
✖
https://wolfram.com/xid/0cer7h7p4pr1m44sijmazvju6-bbavb0
Out[1]=1

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

In[1]:=1
✖
https://wolfram.com/xid/0cer7h7p4pr1m44sijmazvju6-f3hsxr

This performs the opening operation:

In[2]:=2
✖
https://wolfram.com/xid/0cer7h7p4pr1m44sijmazvju6-ie3ki6
Out[2]=2

This gets the memory back to the CPU:

In[3]:=3
✖
https://wolfram.com/xid/0cer7h7p4pr1m44sijmazvju6-dg0ah9
Out[3]=3

Memory must be deleted:

In[4]:=4
✖
https://wolfram.com/xid/0cer7h7p4pr1m44sijmazvju6-ccytfa
Wolfram Research (2010), CUDAOpening, Wolfram Language function, https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html.
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Wolfram Research (2010), CUDAOpening, Wolfram Language function, https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html.

Text

Wolfram Research (2010), CUDAOpening, Wolfram Language function, https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html.

✖
Wolfram Research (2010), CUDAOpening, Wolfram Language function, https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html.

CMS

Wolfram Language. 2010. "CUDAOpening." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html.

✖
Wolfram Language. 2010. "CUDAOpening." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html.

APA

Wolfram Language. (2010). CUDAOpening. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html

✖
Wolfram Language. (2010). CUDAOpening. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html

BibTeX

@misc{reference.wolfram_2024_cudaopening, author="Wolfram Research", title="{CUDAOpening}", year="2010", howpublished="\url{https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html}", note=[Accessed: 06-May-2025 ]}

✖
@misc{reference.wolfram_2024_cudaopening, author="Wolfram Research", title="{CUDAOpening}", year="2010", howpublished="\url{https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html}", note=[Accessed: 06-May-2025 ]}

BibLaTeX

@online{reference.wolfram_2024_cudaopening, organization={Wolfram Research}, title={CUDAOpening}, year={2010}, url={https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html}, note=[Accessed: 06-May-2025 ]}

✖
@online{reference.wolfram_2024_cudaopening, organization={Wolfram Research}, title={CUDAOpening}, year={2010}, url={https://reference.wolfram.com/language/CUDALink/ref/CUDAOpening.html}, note=[Accessed: 06-May-2025 ]}