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Enhancement and Cleaning of Handwritten Data by Using Neural Networks

2005; Springer Science+Business Media; Linguagem: Inglês

10.1007/11492429_46

1611-3349

José Luis Hidalgo González, Salvador España, María José Castro, José Alberto Fernández Pérez,

Vehicle License Plate Recognition

In this work, artificial neural networks are used to clean and enhance scanned images for a handwritten recognition task. Multilayer perceptrons are trained in a supervised way using a set of simulated noisy images together with the corresponding clean images for the desired output. The neural network acquires the function of a desired enhancing method. The performance of this method has been evaluated for both noisy artificial and natural images. Objective and subjective methods of evaluation have shown a superior performance of the proposed method over other conventional enhancing and cleaning filters.