Patent ID: 7750927
Filing Date: 2010-07-06
Classification: G09G

Abstract:
1. An image processing apparatus comprising: an image input section configured to input still image data, the still image to be input to the image input section is an input image having a number of pixels m×n; a number-of-pixel converter configured to perform number-of-pixel conversion on the still image data; a display image generator configured to generate a scroll display image as output image data to be output to an image display section on the basis of the image data whose number of pixels has been converted, the image data being generated by the number-of-pixel converter, the scroll display image to be output to the image display section is an output image having a number of pixels p×q; and a controller configured to control number-of-pixel conversion and display image generation, wherein the number-of-pixel converter includes a spatial filtering processor and a spatial thinning processor, the spatial thinning processor being configured for performing, on each of a plurality of frame images forming the scroll display image, a spatial thinning process in accordance with the amount of spatial thinning with which a super-resolution effect is obtained, the amount of spatial thinning being determined on the basis of a scrolling velocity, and wherein the display image generator generates the scroll display image on the basis of each frame image on which the spatial thinning process has been performed, when the amount of spatial thinning with which the super-resolution effect is obtained is set as an amount of thinning Dx in the X direction and as an amount of thinning Dy in the Y direction, the spatial filtering processor performs a process for converting the input image corresponding to a respective one of the frame images of the scroll display image and having the number of pixels m×n into an intermediate frame image having a number of pixels Dxp×Dyq, and on the basis of the intermediate frame image having the number of pixels Dxp×Dyq, which is generated by the spatial filtering processor, the spatial thinning processor performs a spatial thinning process in which the amount of thinning in the X direction is Dx and the amount of thinning in the Y direction is Dy, samples pixels Dxp in the X direction based on Dx, samples pixels Dyq in the Y direction based on Dy, and generates an output frame image having a number of pixels p×q after sampling in the X direction and the Y direction.