Patent ID: 8712161

Claim:
An image information acquiring system comprising: a processing unit; a storage unit connected to the processing unit and storing a plurality of programs to be executed by the processing unit, wherein the storage unit comprises: a reading module to acquire a pixel value of each pixel in an image; a converting module to calculate a relative value of each pixel comprising ratios between the pixel value of the each pixel and the pixel values of adjacent pixels centering around the each pixel, and to obtain a group of relative values for all pixels in the image; and a storing module to store the group of relative values; wherein the pixel value of each pixel comprises an R value, a G value, and a B value, each ratio between the pixel value of the each pixel and the pixel values of adjacent pixels centering around the each pixel comprises a ratio between the R value of the each pixel and the R value of each of the adjacent pixels, a ratio between the G value of the each pixel and the G value of each of the adjacent pixels, and a ratio between the B value of the each pixel and the B value of each of the adjacent pixels; the group of relative values comprises the ratios between the pixel value of the each pixel and the pixel values of the adjacent pixels centering around the each pixel, the ratios are arranged in series according to orientations of the adjacent pixels relative to the pixel; wherein upon the condition that there is no pixel at an orientation of the pixel, the relative value at the orientation is marked as a character.