1. A method for detecting a salient region of an image, comprising: performing classification processing on a test image according to an image feature vector of the test image using a classifier obtained by pre-training, so as to obtain a classification label, wherein the classification label is used to indicate a salience detection algorithm for detecting a salient region of the test image; and detecting the salient region of the test image by using the salience detection algorithm indicated by the classification label, so as to obtain the salient region of the test image.