METHOD AND DEVICE FOR PROCESSING IMAGE

摘要

PURPOSE: An image processing method and an apparatus using the same are provided to obtain accurate and clear image, and to process the image at high speed by using the template image. CONSTITUTION: The image processing method includes a step of inputting the specified image with respect to the template image and the input image, calculating an edge normal direction vector of the specified image(1), generating an evaluation vector from the edge normal direction vector(2), subjecting the evaluation vector to orthogonal transformation, performing the product sum calculation of corresponding spectral data with respect to each evaluation vector subjected to orthogonal transformation and obtained for each of the template image and the input image, and subjecting to inverse orthogonal transformation and generating a similarity value map. The formula of the similarity value has linearity of orthogonal transformation or inverse orthogonal transformation. The component of the similarity value is not subjected to positive/negative reversal through variations in brightness of the background.