Text segmentation in complex background based on color and scale information of character strokes

Abstract

This paper presents a robust approach to segmenting text embedded in complex background. Our approach consists of four steps: smart sampling, unsupervised clustering, the Bayesian decision, post-processing. The experimental results show that it works effectively, and is more efficient in removing complex background residues than the popular K-means method. © Springer-Verlag Berlin Heidelberg 2007.