Image Processor and Image Processing Method

Abstract

According to one embodiment, an image processor has a resolution increase module, a detector, and a controller. The resolution increase module is configured to perform super-resolution processing so as to restore a first video signal to a second video signal having a second resolution higher than the first resolution. The detector is configured to detect at least one of an information amount of the first image signal, a noise amount of the first image signal, and a type of a terminal to which the first video signal is input. The controller is configured to change a degree of a super-resolution processing performed by the resolution increase module based on a detection. result of the detector.

1 . An image processor comprising:
 a resolution increase module configured to perform super-resolution processing by increasing, upon receipt of a first video signal having a first resolution, pixels by estimating an original pixel value from the first video signal, so as to restore the first video signal to a second video signal having a second resolution higher than the first resolution;   a detector configured to detect at least one of an information amount of the first video signal, a noise amount of the first video signal, and a type of a terminal to which the first video signal is input;   a controller configured to change a degree of the super-resolution processing performed by the resolution increase module based on a detection result of the detector.   
     
     
         2 . The image processor of  claim 1 , further comprising:
 a display configured to display the second image signal.   
     
     
         3 . An image processor comprising:
 a level storage module configured to store a super-resolution level in association with an information amount of a first video signal having a first resolution, the super-resolution level indicating an intensity of a super-resolution conversion, the super-resolution conversion increasing, upon receipt of the first video signal, pixels by estimating an original pixel value from the first video signal so as to restore the first video signal to a second video signal having a second resolution higher than the first resolution;   a determination module configured to determine the information amount of the first image signal, and decide the super-resolution level based on the information amount; and   a resolution increase module configured to perform the super-resolution conversion on the first video signal at the determined super-resolution level.   
     
     
         4 . The image processor of  claim 3 , further comprising:
 an information amount receiver configured to receive the information amount from a user, wherein   the determination module decides the super-resolution level based on the received information amount.   
     
     
         5 . The image processor of  claim 3 , further comprising:
 a receiver configured to receive the first video signal through either one of broadcasting and a communication line, or from an externally connected information device, wherein   the determination module determines the information amount of the received first video signal, and decides the super-resolution level based on the determined information amount.   
     
     
         6 . The image processor of  claim 3 , wherein
 the information amount includes a data amount of the first video signal provided by broadcasting, and   the determination module decides the super-resolution level based on a type of the broadcasting.   
     
     
         7 . The image processor of  claim 3 , wherein
 the information amount includes a bit rate amount of the first video signal, and   the determination module decides the super-resolution level based on the bit rate amount.   
     
     
         8 . The image processor of  claim 3 , wherein
 the level storage module stores the information amount and the super-resolution level in a parameter form.   
     
     
         9 . The image processor of  claim 3 , further comprising:
 a display configured to display the second image signal.   
     
     
         10 . An image processor comprising:
 a resolution increase module configured to perform super-resolution processing by increasing a first resolution of a first video signal to a second resolution of a second video signal;   a detector configured to detect at least one of an information amount of the first video signal, a noise amount of the first video signal, and a type of a terminal to which the first video signal is input; and   a controller configured to change a degree of the super-resolution processing in the resolution increase module based on a detection result of the detector.   
     
     
         11 . An image processing method comprising:
 receiving a first video signal having a first resolution;   performing super-resolution processing by increasing pixels by estimating an original pixel value from the first video signal so as to restore the first video signal to a second video signal having a second resolution higher than the first resolution;   detecting at least one of an information amount of the first video signal, a noise amount of the first video signal, and a type of a terminal to which the first video signal is input; and   controlling to change a degree of the super-resolution processing based on a detection result of the detecting.