pub fn compress_jpeg(src: &NDArray, quality: u8) -> Option<NDArray>Expand description
Compress an NDArray to JPEG.
Only supports UInt8 data. Handles:
- 2D arrays (mono/grayscale)
- 3D arrays with dims[0]=3 (RGB1 interleaved)
Returns None if the data type is not UInt8 or the layout is unsupported.