| dc.contributor | Ferrari, J.A., Instituto de Física, Facultad de Ingeniería (UdelaR), J. Herrera y Reissig 565, Montevideo, Uruguay; Flores, J.L., Electronic Department, University of Guadalajara, Av. Revolución #1500, Guadalajara, Jal., CP 44430, Mexico; Garcia-Torales, G., Electronic Department, University of Guadalajara, Av. Revolución #1500, Guadalajara, Jal., CP 44430, Mexico | |
| dc.description.abstract | A new method for real-time edge enhancement is presented. The method is based on the capacity of liquid-crystal displays to generate a contrast-reverted replica of the image displayed on it. When the negative replica is defocused and it is superposed to the original image (displayed in a second liquid-crystal display), one obtains an image with enhanced second derivatives. The proposed technique resembles the classical (photographic) unsharp masking method, but unlike the time-consuming photographic implementation, it can be applied in real-time. The proposed method is potentially interesting for image processing in areas such as microscopy, industrial edge inspection, etc. Validation experiments are presented. © 2010 Taylor & Francis. | |
