Image processing apparatus
View Patent ↗A image processing apparatus includes a first image converting section for converting an original image into an output resolution image, a second image converting section for converting the original image into an intermediate resolution image, a similarity information generating section for detecting a plurality of similar areas, in a block in the intermediate resolution image corresponding to a predetermined partial area in the output resolution image, that resemble the partial area, and for generating similarity information including a position of each of the plurality of similar areas in the intermediate resolution image and a weight of the position, a texture generating section for generating a texture image by combining high-frequency components of the intermediate resolution image at the position according to the weight, and a texture blending section for blending the output resolution image and the texture image to generate output image.
1. A computer implemented image processing method for an image processing apparatus that generates an output image having a resolution the same as or higher than that of an original image, the image processing method comprising:
converting, by a computer, the resolution of the original image into the same resolution as the output image so as to generate an output resolution image;
converting, by a computer, the resolution of the original image into a resolution different from that of the output image so as to generate an intermediate resolution image;
detecting, by a computer, a plurality of similar areas, in a block in the intermediate resolution image corresponding to a predetermined partial area in the output resolution image, that resemble the partial area, and generating similarity information including a position of each of the plurality of similar areas in the intermediate resolution image and a weight of the position;
generating, by a computer, a texture image by combining high-frequency components of the intermediate resolution image at the position indicated in the similarity information in accordance with the weight indicated in the similarity information; and
blending, by a computer, the output resolution image and the texture image so as to generate the output image.
2. A non-transitory computer readable medium for generating an output image having a resolution the same as or higher than that of an original image, the computer readable medium storing program code which when executed by a computer performs operations comprising:
converting the resolution of the original image into the same resolution as the output image so as to generate an output resolution image;
converting the resolution of the original image into a resolution different from that of the output image so as to generate an intermediate resolution image;
detecting a plurality of similar areas, in a block in the intermediate resolution image corresponding to a predetermined partial area in the output resolution image, that resemble the partial area, and generating similarity information including a position of each of the plurality of similar areas in the intermediate resolution image and a weight of the position;
generating a texture image by combining high-frequency components of the intermediate resolution image at the position indicated in the similarity information in accordance with the weight indicated in the similarity information; and
blending the output resolution image and the texture image so as to generate the output image.