Embodiments of the present disclosure provide a method and apparatus for processing an image. An embodiment of the method includes: acquiring a two-dimensional garment image, where the two-dimensional garment image includes a style identifier of a garment; selecting a three-dimensional garment model matching the style identifier from a pre-established set of three-dimensional garment models, wherein the three-dimensional garment model includes scatter points labeled thereon; labeling the two-dimensional garment image with scatter points based on a pre-established coordinate mapping relationship between the two-dimensional garment image and the three-dimensional garment model and the scatter points of the selected three-dimensional garment model; generating a three-dimensional garment image of the acquired two-dimensional garment image based on the selected three-dimensional garment model and a result of the labeling.