PSNR
This function displays the PSNR (peak signal-to-noise ratio) between two images.
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This function displays the PSNR (peak signal-to-noise ratio) between two images. The answer is in decibels (dB).
PSNR is very common in image processing. A sample use is in the comparison between an original image and a coded/decoded image. Typical quoted PSNR figures are in the range +25 to +35dB.
The syntax for this file is PSNR(A,B), where A and B are MATLAB Intensity Images, with matrix-elements in the interval [0,1]
The function can be adapted for images with 256 gray levels.
Cite As
John T. McCarthy (2026). PSNR (https://uk.mathworks.com/matlabcentral/fileexchange/135-psnr), MATLAB Central File Exchange. Retrieved .
Acknowledgements
Inspired: mmvn_toolkit, PSNR for RGB images
General Information
- Version 1.0.0.0 (2.34 KB)
MATLAB Release Compatibility
- Compatible with any release
Platform Compatibility
- Windows
- macOS
- Linux
| Version | Published | Release Notes | Action |
|---|---|---|---|
| 1.0.0.0 | Made provision for images with 256 gray levels. |
