Patent ID: 6549207
Filing Date: 2003-04-15
Classification: G06T,H04N

Abstract:
A method for dissolving an image on a display screen by providing sequential images to be successively displayed on the screen to form the dissolving transition of the objective image, the respective sequential images being created through applying a progressively-varied weight to the pixel values of the objective image, which is composed of a two-dimensional pixel array, comprising the steps of:(a) dividing the objective image pixels into a plurality of groups, the pixels in each group being dispersed in the image; (b) selecting one of the pixel groups; (c) reading all the pixel values of the selected group from first storage means; (d) multiplying the pixel values read from the first storage means by a weight respectively; (e) storing the weighted pixel values respectively in the storage locations, corresponding to the selected pixel group, within second storage means; (f) repeating steps (b) through (e) wherein the respective pixel groups of the objective image are selected cyclically and the weight is increased or decreased gradually as the repetition of the steps progresses; and (g) in parallel with step (f), cyclically reading the weighted pixel values from the second storage means, in each reading cycle the pixel values corresponding to the pixel groups being read in a predetermined order to display one of the sequential images on the screen.