Patent ID: 8902474
Filing Date: 2014-12-02
Classification: G06T,H04N

Abstract:
1. An image processing apparatus that converts first image data having a first resolution to second image data having a second resolution that is different from the first resolution, wherein the first resolution and the second resolution indicate a number of pixels per unit area, the apparatus comprising: an input unit constructed to sequentially scan the first image data, in units of a predetermined number of pixels that are contiguous in a first direction of the first image data, in a second direction crossing the first direction at right angles, thereby inputting a pixel group corresponding to each unit of pixels; a computation unit constructed to calculate pixel values of the second image data corresponding to the second resolution based on pixel values of pixels in a reference area-in the first image data; a storage unit constructed to store pixel values of the first image data, wherein a number of the pixel values is at least {Fw+Zw−1}×a number of pixels in the second direction of the first image data where Fw is a width or a height of the reference area in the first direction and Zw is the predetermined number, and store the pixel group input by the input unit; and a control unit constructed to control the computation unit so as to successively output pixels of the second resolution in the first direction in units of the predetermined number of pixels, by reading pixel values of same pixels, which constitute the same reference area, multiple times from said storage unit.