im2double — Convert image data to double precision, scaling integer images into [0,1].

im2double(I) returns double image data. uint8 images are divided by 255 and uint16 images by 65535.

How im2double works

• uint8 and uint16 tensors are scaled into [0,1].
• Floating-point tensors keep their numeric values and become double host tensors.
• Logical images convert to 0 and 1.

Example

Convert Read Image

I = im2double(imread("photo.png"));

Expected output:

% I is double image data in [0,1] for integer inputs

Related Image functions

Open-source implementation

Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how im2double works, line by line, in Rust.

• View im2double.rs on GitHub
• Learn how the runtime works
• Found a bug? Open an issue with a minimal reproduction.

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