Patent ID: 8212929

Claim:
An image processing method, comprising: (a) receiving a foreground image data and a background image data, wherein the foreground image data and the background image data both correspond to the same pixel in a display panel; (b) determining a foreground ratio and a background ratio in response to an operational event; (c) obtaining a first value by multiplying the foreground ratio by the foreground image data, and obtaining a second value by multiplying the background ratio by the background image data; and (d) obtaining an output image data by adding the first value and the second value, and displaying the output image data at the pixel in the display panel; wherein one of the foreground image data and the background image data is indicative of a gray level that ranges from a minimum value to a maximum value from which 2N segments are formed; wherein when the gray level of said one of the foreground image data and the background image changes from being within an N th segment to being within a 1 st segment, said one of the foreground ratio and the background ratio is gradually increased; and wherein when the gray level of said one of the foreground image data and the background image changes from being within a (N+1) th segment to a 2N th segment, said one of the foreground ratio or the background ratio is gradually increased.