Localizing text with variable block sizes in complex images based on the smooth gray level detection
Shiueng B. Yang, Tsung Y. Liu · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2003
The novel method, the smooth gray level detection, is proposed for localizing text in images. In the smooth gray level detection, the smoothness of gray levels between the neighboring pixels is used to determine the text blocks in images. Furthermore, the combination of the smooth gray level detection and line detection with variable block size is proposed for localizing text in images. In the experiments, our proposed method can locate the noise, skew and variable sizes of text on the images.