Patent ID: 6483551
Filing Date: 2002-11-19
Classification: G09G,H04N

Abstract:
A method for displaying an image comprising:calculating an average brightness of addresses between two addresses in an original image from original image data; calculating maximal and minimal brightness in said original image from said original image data; converting the original image data into new data having brightness which varies with address from one of the maximal brightness and the minimal brightness to the other and is a linear function of address with said linear function satisfying brightness nearest to the average brightness in the variation, said conversion into said new data being carried out for addresses at which said brightness being said linear function is smaller than the maximal brightness and is larger than the minimal brightness; converting the original image data into new data having the maximal brightness for an address having the original image data of brightness larger than the average brightness except for said addresses at which said brightness being said linear function is smaller than the maximal brightness and is larger than the minimal brightness; and converting the original image data into new data having the minimal brightness for an address having the original image data of brightness smaller than the average brightness except for said addresses at which said brightness being said linear function is smaller than the maximal brightness and is larger than the minimal brightness.