Patent ID: 7173660
Filing Date: 2007-02-06
Classification: G09G,H04N

Abstract:
1. An information-image displaying method for displaying an information image on a screen of a liquid crystal display in order to give a photographer information, said displaying method being used for an apparatus in which a taken subject image is displayed on said liquid crystal display after a thinning process has been executed in accordance with a screen pixel number of said liquid crystal display, said displaying method comprising the steps of: producing an original image of said information image in accordance with a primary pixel number of said subject image; executing a low-pass-filter process for said original image to obtain said information image, said low-pass-filter process performing an operation process relative to data of original pixels of said original image to calculate data of each pixel of said information image; storing said information image in storage means; reading said information image from said storage means; and displaying said information image on said screen of said liquid crystal display after said thinning process, wherein during the operation process the original pixel to be process and the adjacent (N−1) original pixels thereof are each multiplied by a predetermined coefficient and summed up, wherein said “N” is a natural number more than “3”, wherein a brightness level of each pixel of said information image is calculated in said low-pass-filter process, wherein the brightness level after the low-pass-filter process is obtained from the following formula: wherein k wherein the original pixel to be processed and the adjacent (N−1) original pixels thereof represent a tap number, wherein said original image includes a plurality of elements, said elements being separated at least by an amount corresponding to said tap number after producing said original image.