createTonemap

Computational photographyfunctionOpenCV 5.0.0

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

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

Explore visually: HDR merging and tone mapping →

Combine exposure information or fuse well-exposed regions, then map the result into a displayable range.

VISUAL WALKTHROUGHPhotography

REFERENCE INPUTBracketed exposures

Different exposures preserve useful information in different intensity ranges.

→

RESULTMap the merged result for display

The drawing illustrates combined visibility. Radiance estimation and exposure fusion have different outputs; tone mapping applies to a radiance result.

Illustrative example. The stages explain the method; they are not a live OpenCV execution.

Creates simple linear mapper with gamma correction

createTonemap(gamma: number): Tonemap | null;

2 available overloads

createTonemap(): Tonemap | null;

createTonemap(gamma: number): Tonemap | null;

gamma

positive value for gamma correction. Gamma value of 1.0 implies no correction, gamma equal to 2.2f is suitable for most displays. Generally gamma > 1 brightens the image and gamma < 1 darkens it.

Returns

The Tonemap | null result.

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.