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CUDABoxFilter[img,r]

gives the box filter of img with radius r.

CUDABoxFilter[list,r]

gives the box filter of list with radius r.

CUDABoxFilter[mem,r]

gives the box filter of mem with radius r.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
Applications  
See Also
Tech Notes
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CUDALink`
CUDALink`

CUDABoxFilter

CUDABoxFilter[img,r]

gives the box filter of img with radius r.

CUDABoxFilter[list,r]

gives the box filter of list with radius r.

CUDABoxFilter[mem,r]

gives the box filter of mem with radius r.

Details and Options

  • The CUDALink application must be loaded using Needs["CUDALink`"].
  • CUDABoxFilter works with binary, grayscale, and other images.
  • CUDABoxFilter works with CUDAMemory and lists.
  • CUDABoxFilter[image,r] is equivalent to CUDAImageConvolve[image,BoxMatrix[r]].
  • If multiple image channels are present, CUDABoxFilter 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

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Basic Examples  (3)

First, load the CUDALink application:

Wolfram Language code: Needs["CUDALink`"]

This performs a mean filter:

Wolfram Language code: CUDABoxFilter[[image], 1, 3]

This finds the sum of values in a neighborhood of a list:

Wolfram Language code: CUDABoxFilter[BoxMatrix[5], 1]//MatrixForm

CUDABoxFilter on a graphics object will automatically rasterize the graphic:

Wolfram Language code: CUDABoxFilter[[image], 3, 7]

Applications  (1)

CUDABoxFilter on the same image approximates a Gaussian filter:

Wolfram Language code: With[{img = [image]}, CUDAImageDivide[CUDAImageAdd[CUDABoxFilter[img, 1, 3], CUDAImageAdd[CUDABoxFilter[img, 2, 5], CUDABoxFilter[img, 3, 7]]], 3] ]
Wolfram Research (2010), CUDABoxFilter, Wolfram Language function, https://reference.wolfram.com/language/CUDALink/ref/CUDABoxFilter.html.

Text

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

CMS

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

APA

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

BibTeX

@misc{reference.wolfram_2026_cudaboxfilter, author="Wolfram Research", title="{CUDABoxFilter}", year="2010", howpublished="\url{https://reference.wolfram.com/language/CUDALink/ref/CUDABoxFilter.html}", note=[Accessed: 13-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_cudaboxfilter, organization={Wolfram Research}, title={CUDABoxFilter}, year={2010}, url={https://reference.wolfram.com/language/CUDALink/ref/CUDABoxFilter.html}, note=[Accessed: 13-June-2026]}