1. A method performed using a physical computer system comprising at least one processor for generating a personal clothing model for use in classifying an image comprising: generating, using the computer system, clothing feature data representative of at least one clothing feature using clothing region data representative of clothing regions detected in each image of a subset of images from a collection of images, each clothing region being associated with a same clothing worn by a same person that appears in each image of the subset of images; and training, using the computer system, a discriminative clothing classifier using the clothing feature data to generate at least one personal clothing model, wherein the at least one personal clothing model, for use in classifying the image, corresponds to the clothing.