ximgproc_anisotropicDiffusion

Extended image processingfunctionOpenCV 5.0.0

import { ximgproc_anisotropicDiffusion } from '@banou/opencv-wasm'

Use after await initOpenCV(). See the initialization and named imports guide.

ARGUMENTSsrc, dst, alpha, K

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FUNCTIONximgproc_anisotropicDiffusion

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RETURN TYPEvoid

Call structure. A void return can still write to destination arguments. The parameter descriptions define inputs, outputs and ownership.

Performs anisotropic diffusion on an image.

The function applies Perona-Malik anisotropic diffusion to an image. This is the solution to the partial differential equation:

{\frac  {\partial I}{\partial t}}={\mathrm  {div}}\left(c(x,y,t)\nabla I\right)=\nabla c\cdot \nabla I+c(x,y,t)\Delta I

Suggested functions for c(x,y,t) are:

c\left(\|\nabla I\|\right)=e^{{-\left(\|\nabla I\|/K\right)^{2}}}

or

 c\left(\|\nabla I\|\right)={\frac {1}{1+\left({\frac  {\|\nabla I\|}{K}}\right)^{2}}} 

ximgproc_anisotropicDiffusion(src: Mat, dst: Mat, alpha: number, K: number, niters: number): void;

src

Source image with 3 channels.

dst

Output destination, filled by the native operation. Destination image of the same size and the same number of channels as src .

alpha

The amount of time to step forward by on each iteration (normally, it's between 0 and 1).

K

sensitivity to the edges

niters

The number of iterations

Upstream declaration ↗

These signatures describe this package. Upstream documentation can mention optional backends that are absent from this build. Check runtime compatibility before choosing a backend or file format.