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CUDAErosion

CUDAErosion[img,r]

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

CUDAErosion[list,r]

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

CUDAErosion[mem,r]

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

Details and Options

  • The CUDALink application must be loaded using Needs["CUDALink`"].
  • CUDAErosion works with binary, grayscale, and other images.
  • CUDAErosion works with CUDAMemory and lists.
  • CUDAErosion[image,r] is equivalent to Erosion[image,r].
  • If multiple image channels are present, CUDADilation 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  (6)Summary of the most common use cases

First, load the CUDALink application:

In[1]:=1
✖
https://wolfram.com/xid/04h86q1vm2mvc4z5jqysla471e-9h8a50

Erosion reduces smaller, light features:

In[2]:=2
✖
https://wolfram.com/xid/04h86q1vm2mvc4z5jqysla471e-eifnxu
Out[2]=2

Erosion of a grayscale image:

In[1]:=1
✖
https://wolfram.com/xid/04h86q1vm2mvc4z5jqysla471e-0c1z44
Out[1]=1

Erosion operates on each color channel independently:

In[1]:=1
✖
https://wolfram.com/xid/04h86q1vm2mvc4z5jqysla471e-rqk7oo
Out[1]=1

Erosion can be used to perform a max filter on an input list:

In[1]:=1
✖
https://wolfram.com/xid/04h86q1vm2mvc4z5jqysla471e-hjc1w

CUDAErosion works with graphics objects:

In[1]:=1
✖
https://wolfram.com/xid/04h86q1vm2mvc4z5jqysla471e-bbavb0
Out[1]=1

Using CUDAMemory, one can speed up computation by reducing the amount of memory operations. This loads memory onto the CPU:

In[1]:=1
✖
https://wolfram.com/xid/04h86q1vm2mvc4z5jqysla471e-f3hsxr

This performs the erosion operation:

In[2]:=2
✖
https://wolfram.com/xid/04h86q1vm2mvc4z5jqysla471e-ie3ki6
Out[2]=2

This gets the memory back to the CPU:

In[3]:=3
✖
https://wolfram.com/xid/04h86q1vm2mvc4z5jqysla471e-dg0ah9
Out[3]=3

Memory must be deleted:

In[4]:=4
✖
https://wolfram.com/xid/04h86q1vm2mvc4z5jqysla471e-ccytfa
Wolfram Research (2010), CUDAErosion, Wolfram Language function, https://reference.wolfram.com/language/CUDALink/ref/CUDAErosion.html.
✖
Wolfram Research (2010), CUDAErosion, Wolfram Language function, https://reference.wolfram.com/language/CUDALink/ref/CUDAErosion.html.

Text

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

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

CMS

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

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

APA

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

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

BibTeX

@misc{reference.wolfram_2024_cudaerosion, author="Wolfram Research", title="{CUDAErosion}", year="2010", howpublished="\url{https://reference.wolfram.com/language/CUDALink/ref/CUDAErosion.html}", note=[Accessed: 30-April-2025 ]}

✖
@misc{reference.wolfram_2024_cudaerosion, author="Wolfram Research", title="{CUDAErosion}", year="2010", howpublished="\url{https://reference.wolfram.com/language/CUDALink/ref/CUDAErosion.html}", note=[Accessed: 30-April-2025 ]}

BibLaTeX

@online{reference.wolfram_2024_cudaerosion, organization={Wolfram Research}, title={CUDAErosion}, year={2010}, url={https://reference.wolfram.com/language/CUDALink/ref/CUDAErosion.html}, note=[Accessed: 30-April-2025 ]}

✖
@online{reference.wolfram_2024_cudaerosion, organization={Wolfram Research}, title={CUDAErosion}, year={2010}, url={https://reference.wolfram.com/language/CUDALink/ref/CUDAErosion.html}, note=[Accessed: 30-April-2025 ]}