Open source PSNR / SSIM C implementation without OpenCV?

Question

Is there an open source C implementation for PSNR, SSIM, or MSE that doesn't rely on OpenCV?

Thank.

Answer 1

IQA provides a C implementation without dependencies of the following image quality metrics:

• MSE
• PSNR
• SSIM
• MS-DYUS
• MS-DNYUS *

Answer 2

The Google WebM project provides these calculations in the libvpx library . In particular, in the code VP8 .

NetPBM, FFMPEG x264 Project.