An image quality assessing method, an electronic device, and a computer-readable storage medium are provided. The method includes: obtaining a to-be-assessed original image; obtaining a grayscale image and a histogram equalization image corresponding to the obtained original image by performing an image conversion on the original image; calculating an image similarity between the obtained grayscale image and the obtained histogram equalization image; and determining an image quality assessment result of the original image according to the calculated image similarity. Through the forgoing method, the original image can be converted to obtain the corresponding grayscale image and histogram equalization image, and the image quality assessment result of the original image can be determined according to the image similarity between the grayscale image and the histogram equalization image, which does not involve statistics and calculations of multiple feature indicators, and is helpful to improve the efficiency of the image quality assessment method.