Image quality assessment from error visibility to structural similarity

1. What is image quality assessment?
2. What is SSIM method?
3. How is SSIM calculated?
4. What is SSIM in image processing?

What is image quality assessment?

The process of determining the level of accuracy is called Image Quality Assessment (IQA). Image quality assessment is part of the quality of experience measures. Image quality can be assessed using two methods: subjective and objective.

What is SSIM method?

The structural similarity index measure (SSIM) is a method for predicting the perceived quality of digital television and cinematic pictures, as well as other kinds of digital images and videos. SSIM is used for measuring the similarity between two images.

How is SSIM calculated?

The SSIM Index quality assessment index is based on the computation of three terms, namely the luminance term, the contrast term and the structural term. The overall index is a multiplicative combination of the three terms.

What is SSIM in image processing?

Introduction — The Structural Similarity Index (SSIM) is a perceptual metric that quantifies image quality degradation* caused by processing such as data compression or by losses in data transmission.