gray2rgb — Replicate a grayscale image into an RGB truecolor image.

gray2rgb(I) replicates an MxN grayscale image across red, green, and blue planes to produce MxNx3 truecolor data.

How gray2rgb works

• Accepts MxN grayscale images.
• Preserves host tensor dtype metadata.

Example

Replicate Gray To RGB

RGB = gray2rgb(I);

Expected output:

% RGB is MxNx3

Related Image functions

Open-source implementation

Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how gray2rgb works, line by line, in Rust.

• View gray2rgb.rs on GitHub
• Learn how the runtime works
• Found a bug? Open an issue with a minimal reproduction.

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