Patent Document ID: 9756200
Application ID: 14925779
Patent Status: 1

Claim One:
1. An image processing apparatus, comprising: an area extracting unit configured to extract halftone dot areas and character images in an image; a table image detecting unit configured to detect the extracted halftone dot areas as a table image if (a) the extracted halftone dot areas include no ruled lines, (b) plural halftone dot areas among the extracted halftone dot areas are arrayed in a primary scanning direction and/or a secondary scanning direction, and (c) the arrayed plural halftone dot areas include the character images at least two positions; a compression processing unit configured to identify other parts than the detected table image and the character images as a background image, and independently compress the detected table image, the character images and the background image in a predetermined coding method; and a file generating unit configured to generate a file that includes the compressed table image, the compressed character images and the compressed background image in respective layers.