20100054594 | IMAGE PROCESSING SYSTEM AND COMPUTER-READABLE RECORDING MEDIUM FOR RECORDING IMAGE PROCESSING PROGRAM - A tone conversion unit, when performing tone conversion on an image signal, performs the tone conversion so as to provide a more appropriate tone to a feature area such as a face extracted from the image signal. Specifically, a correction coefficient calculation unit performs multi-resolution decomposition on a specific signal with the extracted feature area, and sets all pixels of low-frequency component to 1, while setting high-frequency components considered to include noise to 0, so as to calculate a correction coefficient. Then, a correction coefficient processing unit performs a processing of multiplying the correction coefficient to the image signal similarly performed with multi-resolution decomposition. | 03-04-2010 |