Masking

Masking

is an option for various image and signal processing functions that specifies on which regions they should operate.

Details

  • Masking is also known as region of interest (ROI) or volume of interest (VOI).
  • The typical settings include:
  • Allentire object
    Automaticautomatic selection
    {pos1,pos2,…}specific positions
    imagegrayscale or binary version of image
    regionany ConstantRegionQ
    graphicsuse positive raster values
    arrayuse positive values in array
  • When the region of interest is specified as an array or image, it is taken to be centered on the image to be processed.

Examples

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Basic Examples  (2)

Apply a function to image pixels in a specified region of interest:

Compute image measurements only on a specified region of interest:

Scope  (1)

Perform color negation to the whole image:

This is equivalent to Masking->All:

Use a region as the mask:

Use a binary image as the mask:

Use a grayscale image as the mask:

Applications  (1)

Separate the foreground from the background:

Apply a function to the background:

Wolfram Research (2010), Masking, Wolfram Language function, https://reference.wolfram.com/language/ref/Masking.html (updated 2018).

Text

Wolfram Research (2010), Masking, Wolfram Language function, https://reference.wolfram.com/language/ref/Masking.html (updated 2018).

CMS

Wolfram Language. 2010. "Masking." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2018. https://reference.wolfram.com/language/ref/Masking.html.

APA

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

BibTeX

@misc{reference.wolfram_2024_masking, author="Wolfram Research", title="{Masking}", year="2018", howpublished="\url{https://reference.wolfram.com/language/ref/Masking.html}", note=[Accessed: 21-November-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_masking, organization={Wolfram Research}, title={Masking}, year={2018}, url={https://reference.wolfram.com/language/ref/Masking.html}, note=[Accessed: 21-November-2024 ]}