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CUDAClamp[lst]

clamps the values of lst between automatically determined values.

CUDAClamp[lst,low,high]

clamps the values of lst between low and high.

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

CUDAClamp

CUDAClamp[lst]

clamps the values of lst between automatically determined values.

CUDAClamp[lst,low,high]

clamps the values of lst between low and high.

Details and Options

  • The CUDALink application must be loaded using Needs["CUDALink`"].
  • CUDAClamp works only on general types such as "Float", "Double", ….
  • CUDAClamp does not work on fixed vector structure types like "Float[2]", "Integer32[2]", ….
  • CUDAClamp does not work on symbolic input.
  • If low and high are not specified, then low is 0.0 and high is 1.0 if the input is floating point. If the input is integers, then low is 0 and high is 255.

Examples

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Basic Examples  (5)

First, load the CUDALink application:

Wolfram Language code: Needs["CUDALink`"]

This clamps the values of an integer list:

Wolfram Language code: CUDAClamp[Table[i, {i, 0, 500}, {j, 0, 500}]]//ArrayPlot

The above is equivalent to Map:

Wolfram Language code: Map[Cos, 1.0 * Range[10]]

The clamp values can be made explicit:

Wolfram Language code: CUDAClamp[Table[i, {i, 0, 500}, {j, 0, 500}], 0, 100]//ArrayPlot

The input can be floating point:

Wolfram Language code: CUDAClamp[GaussianMatrix[ {20, 20}], 0.0, 0.0004]//ListPlot3D

The input can be an image, which is interpreted as a list of integers:

Wolfram Language code: CUDAClamp[[image], 75, 255]

The high clamp parameter can be omitted:

Wolfram Language code: CUDAClamp[[image], 75]

The input can be CUDAMemory. This loads a list using CUDAMemoryLoad:

Wolfram Language code: mem = CUDAMemoryLoad[Range[-10, 10], "Byte"]

This clamps the values between -5 and 5:

Wolfram Language code: res = CUDAClamp[mem, -5, 5]

The memory returned can be retrieved using CUDAMemoryGet:

Wolfram Language code: CUDAMemoryGet[res]

Applications  (1)

CUDAClamp can be used to process geographic elevation data. This loads the data from the Wolfram servers:

Wolfram Language code: gisData = Import[ "http://exampledata.wolfram.com/sdtsdem.tar.gz", "Data" ];

This clamps the values of the elevation data:

Wolfram Language code: Manipulate[ReliefPlot[CUDAClamp[gisData, low, high], ColorFunction -> "GreenBrownTerrain"], {low, Min[gisData], Max[gisData] / 2}, {high, Max[gisData] / 2, Max[gisData]}]

Interactive Examples  (2)

This allows the user to interactively change the clamp values:

Wolfram Language code: Manipulate[ArrayPlot[CUDAClamp[Table[i, {i, 0, kk}, {j, 0, kk}]]], {kk, 1, 1000}]

The same can be applied for datasets:

Wolfram Language code: lst = GaussianMatrix[ {50, 50}]; Manipulate[ListPlot3D[CUDAClamp[lst, 0.0, ii]], {ii, Min[lst], Max[lst]}]
Wolfram Research (2010), CUDAClamp, Wolfram Language function, https://reference.wolfram.com/language/CUDALink/ref/CUDAClamp.html.

Text

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

CMS

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

APA

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

BibTeX

@misc{reference.wolfram_2026_cudaclamp, author="Wolfram Research", title="{CUDAClamp}", year="2010", howpublished="\url{https://reference.wolfram.com/language/CUDALink/ref/CUDAClamp.html}", note=[Accessed: 13-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_cudaclamp, organization={Wolfram Research}, title={CUDAClamp}, year={2010}, url={https://reference.wolfram.com/language/CUDALink/ref/CUDAClamp.html}, note=[Accessed: 13-June-2026]}