Patent ID: 6219459
Filing Date: 2001-04-17
Classification: G06T

Abstract:
An image transforming device comprising:edge detecting means for detecting edges of an inputted image;normalizing means for normalizing and outputting edge signals detected by said edge detecting means;nonlinear transforming means for receiving the normalized edge signals and for nonlinear transforming the received normalized edge signals in accordance with a predetermined relationship in order to increase intermediate tone elements thereof, in which the predetermined relationship is expressed by y.sub.out =(y.sub.in).sup.1/n wherein y.sub.out represents the nonlinear transformed edge signal, y.sub.in represents the received normalized edge signals, and n>1;inverting means for inverting the light and shade of said nonlinear transformed edge signal and outputting the inverted edge signal; andmixing means for receiving mixing ratio information, said inverted edge signal, and said inputted image and for mixing a difference of said inverted edge signal and said inputted image, weighting said difference by the mixing ratio information, and adding the inputted image to the weighted difference to transform the inputted image to a painting style image.