1. A method for recognizing a subject area of an image, comprising: receiving an image to be recognized, and extracting candidate subject areas from the image; eliminating a non-subject area from the extracted candidate subject areas to obtain target candidate subject areas, and adjusting and classifying the target candidate subject areas to obtain at least one set of the target candidate subject areas; and merging the target candidate subject areas in each set of the target candidate subject areas to recognize the subject area of the image, wherein adjusting the target candidate subject areas comprises: for each target candidate subject area, performing at least one of zooming and panning on a current target candidate subject area according to relations of sizes and of locations between a subject and a current target candidate subject area.