ind2rgb — Convert indexed image data and a colormap to RGB truecolor data.

ind2rgb(X, map) maps indexed image values through an Nx3 colormap and returns truecolor RGB data.

How ind2rgb works

• Double and single index arrays use 1-based colormap indices.
• uint8 and uint16 index arrays use zero-based indexed-image values.
• The output appends a third RGB channel dimension.

Example

Indexed Image To RGB

RGB = ind2rgb(X, map);

Expected output:

% RGB is size(X) with a third RGB channel

Related Image functions

Open-source implementation

Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how ind2rgb works, line by line, in Rust.

• View ind2rgb.rs on GitHub
• Learn how the runtime works
• Found a bug? Open an issue with a minimal reproduction.

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