Patent ID: 7133157
Filing Date: 2006-11-07
Classification: H04N

Abstract:
1. An image processing method for obtaining processed color image signals from image signals representing an original image based on a silver halide photosensitive material, comprising: transforming a set of color image signals representing the original image based on the silver halide photosensitive material into a luminance signal and color information signals; producing processed color information signals by applying a high-frequency component suppression processing to the color information signals; decomposing the luminance signal into a luminance low-frequency component signal, a luminance medium-frequency component signal, and a luminance high-frequency component signal; making a processed luminance low-frequency component signal by applying a processing, in accordance with requirement, to the luminance low-frequency component signal; making a processed luminance medium-frequency component signal by applying a suppression processing to the luminance medium-frequency component signal; making a processed luminance high-frequency component signal by applying an emphasis processing to the luminance high-frequency component signal; composing a processed luminance signal through combining the processed luminance low-frequency component, the processed luminance medium-frequency component signal, and the processed luminance high-frequency component signal; and transforming the processed luminance signal and the processed color information signals into a set of processed color image signals.