1. A method for protecting specific information, comprising: receiving an image containing the specific information; identifying boundaries of the image; matching the image with a predetermined image template based on the boundaries so as to determine a specific information region of the image; and performing predetermined processing on the specific information region of the image in response to determining the specific information region of the image so as to protect the specific information, wherein the step of matching the image with a predetermined image template to determine a specific information region of the image comprises: matching a feature region of the image against a feature region of the predetermined image template based on the boundaries; and determining the specific information region of the image based on a matching image template.