Image quality control method, and method and device for shooting images by cameras

The invention provides an image quality control method, and a method and device for shooting images by cameras. The image quality control method comprises the steps of: receiving images and the scoresof the images transmitted by each camera in multiple cameras; determining the level of the quality of at least one image according to the image quality classification criterion and the scores of theimages, wherein the image quality classification criterion is used for determining whether at least one image satisfies the identification quality requirement or not; and the same level of the image quality classification criterion corresponds to different scoring ranges of different image quality evaluation criteria; and, when the fact that at least one image does not satisfy the identification quality requirement is determined, sending a control instruction to the camera, so that the camera is controlled to improve the quality of the image. By means of the image quality control method, and the method and device for s