Module av_metrics::video::ssim

Structural Similarity index.

The SSIM index is a full reference metric; in other words, the measurement or prediction of image quality is based on an initial uncompressed or distortion-free image as reference. SSIM is designed to improve on traditional methods such as peak signal-to-noise ratio (PSNR) and mean squared error (MSE).

See https://en.wikipedia.org/wiki/Structural_similarity for more details.

Functions

• calculate_frame_msssim
  Calculates the MSSSIM score between two video frames. Higher is better.
• calculate_frame_ssim
  Calculates the SSIM score between two video frames. Higher is better.
• calculate_video_msssim
  Calculates the MSSSIM score between two videos. Higher is better.
• calculate_video_ssim
  Calculates the SSIM score between two videos. Higher is better.