BottomHatTransform

BottomHatTransform[image,ker]

gives the morphological bottom-hat transform of image with respect to structuring element ker.

BottomHatTransform[image,r]

gives the bottom-hat transform with respect to a range-r square.

BottomHatTransform[data,…]

applies a bottom-hat transform to an array of data.

Details

Examples

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Basic Examples  (3)

Use bottom-hat transform to highlight the dark spots on a cheetah:

Bottom-hat transform applied to a color photo:

Bottom-hat transform applied to a 3D image:

Applications  (4)

Extract small, dark regions from a color image:

Use a disk-shaped structuring element to extract washers that are smaller than the specified size:

Extract thin, dark features:

Add the result to the original image to remove those thin features:

The bottom-hat transform effectively inverts high-frequency regions:

Wolfram Research (2008), BottomHatTransform, Wolfram Language function, https://reference.wolfram.com/language/ref/BottomHatTransform.html (updated 2012).

Text

Wolfram Research (2008), BottomHatTransform, Wolfram Language function, https://reference.wolfram.com/language/ref/BottomHatTransform.html (updated 2012).

CMS

Wolfram Language. 2008. "BottomHatTransform." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2012. https://reference.wolfram.com/language/ref/BottomHatTransform.html.

APA

Wolfram Language. (2008). BottomHatTransform. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/BottomHatTransform.html

BibTeX

@misc{reference.wolfram_2024_bottomhattransform, author="Wolfram Research", title="{BottomHatTransform}", year="2012", howpublished="\url{https://reference.wolfram.com/language/ref/BottomHatTransform.html}", note=[Accessed: 22-November-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_bottomhattransform, organization={Wolfram Research}, title={BottomHatTransform}, year={2012}, url={https://reference.wolfram.com/language/ref/BottomHatTransform.html}, note=[Accessed: 22-November-2024 ]}