Local Thresholding Technique Based On A Run Representation

V. Eramo; C. Raspollini

doi:10.1117/12.970080

1 November 1989 Local Thresholding Technique Based On A Run Representation

V. Eramo, C. Raspollini

Proceedings Volume 1199, Visual Communications and Image Processing IV; (1989) https://doi.org/10.1117/12.970080
Event: 1989 Symposium on Visual Communications, Image Processing, and Intelligent Robotics Systems, 1989, Philadelphia, PA, United States

Abstract

This paper describes a technique for local thresholding of large digital images, obtained from line drawings of low quality. It is based on two main steps. First, the gray level image is thresholded with a global value, to discard those pixels which surely belong to a non significant background. A suitable run representation is used to compress the resulting image. Then, for each run, a set of connected runs is used to compute a local thresholding value. This threshold is applied to the pixels of the current run, to obtain the final binary image.

Citation Download Citation

V. Eramo and C. Raspollini "Local Thresholding Technique Based On A Run Representation", Proc. SPIE 1199, Visual Communications and Image Processing IV, (1 November 1989); https://doi.org/10.1117/12.970080

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