1. An image identification method applied to a color source image and executed by an electronic device, comprising steps of: storing the color source image; proceeding texture feature extraction on the color source image to obtain a plurality of texture parameters; proceeding color feature extraction on the color source image to obtain a plurality of color momentums; weighting the plurality of texture parameters and the plurality of color momentums to obtain an image identification parameter corresponding to the color source image; and adjusting weights corresponding to the plurality of texture parameters and weights corresponding to the plurality of color momentums according to size of the color source image.