Patent Document ID: 9292541
Application ID: 13850634
Patent Status: 1

Claim One:
1. A method of providing online information using image, the method comprising: separating each of a target image, received from a user terminal, and an original image, received from an information provider apparatus, into a text region and a graphic region; selecting an important text region from the text region based on the number of strokes to an area of the text region; extracting features from the text region, the graphic region, and the important text region, respectively; searching for the original image corresponding to the target image using the features of the text region, the graphic region, and the important text region; and searching for supplementary information related to the retrieved original image and provided the retrieved supplementary information, wherein the extracting of features from the graphic region comprises: forming a graphic image formed of only the graphic region; filling each of pixels of the graphic region from which the text region has been deleted, with a mean value of pixels of a graphic region that is closest to the graphic region; and extracting the features of the graphic region by applying a characteristic extraction algorithm to the graphic image.