Bottom Hat

Enhances the fine details or small objects within an image by subtracting an opened version of the image from the original.

🖼️ Image options and parameters of bottomHat method
🎭 Mask options and parameters of bottomHat method

Similarly to top hat, bottom hat operation computes the difference between two images. However, if top hat was using opening method, bottom hat is using closing method. The purpose of bottom hat(or, as it is also called, black-hat) is to enhance and extract darker regions of the image.

Source:CirclesStarShapesLennaBarbaraStandard boatMandrillPeppersHouse

Ran in 0.00μs (Infinity ops/s)

Kinds of images compatible with algorithm

Image property	What it means	Possible values
bitDepth	number of bits per channel	[1,8,16]
components	number of components	[1]
alpha	is alpha channel allowed	false

Parameters and default values

info

Parameters and options for Images and Masks are the same.

• options

Options

Property	Required	Default value
iterations	no	1
kernel	no	[[1, 1, 1],[1, 1, 1],[1, 1, 1]]

info

The method is also available for Masks.