PSNR

版本 1.0.0.0 (2.3 KB) 作者: John T. McCarthy
This function displays the PSNR (peak signal-to-noise ratio) between two images.
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更新时间 2008/2/4

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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.

引用格式

John T. McCarthy (2024). PSNR (https://www.mathworks.com/matlabcentral/fileexchange/135-psnr), MATLAB Central File Exchange. 检索来源 .

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启发作品: mmvn_toolkit, PSNR for RGB images

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版本 已发布 发行说明
1.0.0.0

Made provision for images with 256 gray levels.