IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

摘要

The present invention provides an image processing device whereby the probability of outputting a restored image which accurately corresponds to an original image which is included in a low-quality input image is improved. This image processing device comprises: an image group generating means for generating, from the input image, using a dictionary which stores a plurality of patch pairs wherein a degradation patch which is a patch of a degraded image wherein a prescribed image is degraded is associated with a restoration patch which is a patch of this prescribed image, a plurality of restored image candidates including a plurality of different instances of content which have a possibility of being the original content of the input image; and an image selection presentation means for clustering the generated plurality of restored image candidates, and selecting and outputting an image candidate on the basis of the result of this clustering.

主权项

1. An image processing device comprising:
an image group generation unit that uses a dictionary storing a plurality of patch pairs including a degraded patch which is a patch of a degraded image obtained by degrading a predetermined image and a restored patch which is a patch of said predetermined image in such a manner that the degraded patch and the restored patch are associated with each other to generate a plurality of restored image candidates including a plurality of different contents that may be an original content of an input image from said single input image; a reliability degree calculation unit that calculates a degree of reliability of each of the restored image candidates generated by said image group generation unit, generates a reduced-quality image from said restored image, and calculates said degree of reliability on the basis of a difference between said reduced-quality image and said input image; and an image selection presenting unit that selects and outputs said restored image candidate on the basis of said degree of reliability.