| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance the image quality easily with a simple configuration. <P>SOLUTION: A frequency separation unit 20 reduces an input image, restores the reduced input image to an image size before the reduction, calculates a difference from the input image before the reduction, and separates the input image into a reduced image and a difference image which have different frequency bands. An image processing unit 30 processes the reduced image and/or the difference image. A synthesizing processing unit 40 synthesizes the reduced image and the difference image, at least one of which is image-processed, at an equal image size. The image quality can be easily enhanced with a simple configuration at low processing cost without using a large scale memory or buffer. <P>COPYRIGHT: (C)2013,JPO&INPIT |
