Patent ID: 7187811

Claim:
A method for image resolution enhancement, including the following steps: providing an original image; dividing the original image into a plurality of image portions using an image mask; utilizing a fuzzy analysis system to analyze each of the plurality of image portions of the original image by first determining if a visibility value is greater than zero, if the visibility value is greater than zero then a structure value is calculated to distinguish smooth areas from areas having texture or edge qualities, and a complexity value is calculated to distinguish an area with an edge quality from an area having a texture quality, and based thereon each image portion of the original image being classified into one with an edge quality and another one without an edge quality; calculating the edge angle of the area classified to be with the edge quality and inputting coordinates of the area with the edge quality and the edge angle to a neural network, the neural network multiplies a reference pixel that belongs to the edge angle and neighboring pixels of the reference pixel by weighted values derived from a trained neural network respectively, and sums the multiplied results to obtain an interpolated pixel; processing the area classified to be without the edge quality with bilinear interpolation; and obtaining a high-resolution digital image after completing the whole original image processing.