Patent ID: 8964243
Filing Date: 2015-02-24
Classification: H04N

Abstract:
1. An image forming apparatus comprising: an input device for inputting at least binary image data; and a controller configured to control operations of said image forming apparatus on binary image data input by said input device for i) performing pattern matching on said binary image data to (1) detect a jaggy portion and (2) reduce jaggies by converting said binary image data into multivalued corrected image data and substituting said jaggy portion with a grayscale, ii) converting a resolution of said multivalued corrected image data into a higher resolution, iii) generating an attribute code, that at least indicates if jaggy correction occurred for each region of said multivalued corrected image data, and converting a resolution of said attribute code into a resolution equal to the converted resolution of said multivalued corrected image data, and iv) binarizing said multivalued corrected image data having the converted resolution by a binarization method according to said attribute code having the converted resolution.