| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an image processing unit and method that reduces noise. SOLUTION: In a step S12, whether there exists an absolute value greater than a threshold A among the absolute values of the AC components of a luminance Y is discriminated, so as to discriminate whether the component is an edge component or a noise component of an effective image. When it is discriminated as being the edge component of the valid image, 'suppress- flag' is set to 0 to avoid suppression processing, and when discriminated to be the noise component, the 'suppress- flag' is set to 1 so as to conduct the suppression processing.</p> |
