How to evaluate the quality of remote sensing images? What are the commonly used indicators?

1) View the frequency of a single brightness value in the image histogram.

2) Check the brightness value of a pixel in a specific geographical area on the computer.

3) Calculate the basic descriptive statistics of the hospital and judge whether the remote sensing data of the image is abnormal.

4) Calculate multivariate statistics to determine the correlation between bands (such as identifying redundant information).

All the above are macro descriptions, which can be confirmed by specific quantitative indicators such as minimum value, maximum value, range, mean value, standard deviation, covariance and correlation coefficient between bands in specific evaluation.