Patent ID: 9363515
Filing Date: 2016-06-07
CPC Classification: G06T,H04N

Claim Text:
1. An image processing method which performs template matching between a template which is a comparison source for a denoising target pixel in a denoising target image and a template for each of search points which are search targets in a search shape in the denoising target image and removes noise of the target pixel with a weight in accordance with the degree of similarity between the templates and the weighted sum of pixel values at the search points, the method comprising: a step of calculating an edge direction using the denoising target image; a step of setting a search shape in which the number of search points along the direction perpendicular to the edge direction is smaller than the number of search points along the edge direction, using the calculated edge direction as an index used for limiting the search shape; and a step of executing a process of performing the template matching on only search points within the set search shape and removing the noise of the target pixel.