| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for making memory use efficiency during copying compatible with the image quality during scanning in an MFP having copying function and scanner functions. <P>SOLUTION: The MFP, in which image data flows from a line sensor to a DRAM via an A/D conversion unit and a reading control unit (RCU) and then from an image processing unit (IPU) to a printer via the DRAM, has the following configuration. Both the RCU and the IPU can execute shading processings. That is, in copying, the RCU executes the shading processings; and then, the image is compressed and stored in the DRAM. At scanning, the RCU will not execute the shading processings, and the image is temporarily stored in the DRAM without compression; and the IPU reads out image data of each rectangle from the DRAM together with the shading data, carries out the shading processings and various kinds of image processings, and outputs the image data to the DRAM. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
