Patent ID: 7184060
Filing Date: 2007-02-27
Classification: H04N

Abstract:
1. A special effect device in which picture signals are read out from a frame buffer based on an address signal to impart a desired special effect to a picture corresponding to the picture signals read out from said frame buffer, said special effect device comprising: address signal generating means for generating a readout address signal for said picture signals stored in said frame buffer so that, by rupturing a picture portion within an area at an optional position of said picture, defined by a circle having a radius of an optional size, with the center of the circle as a rupturing point, a folded figure will be obtained which has the circumference of said circle as a topological boundary, wherein the shape of the folded figure is prescribed by a function F(θ), wherein the function F(θ) is represented by the equation (1-1): where t=θ×1Plickle (mod2π); which satisfies the equation (1-2): where Rnd is a random number between 0.0 and 1.0.