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An efficient union-find algorithm for extracting the connected components of a large-sized image (2004)

by Robert Strandh ,  Robert Str ,  Jacques-Oliver Lapeyre ,  Jacques-olivier Lapeyre
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Abstract:

Some simple algorithms exist for extracting the connected components of a binary or multiplevalued image. These algorithms are usually rather fast, even though they imply several passes over the image data, pixel by pixel processing, or multiple access to the same pixel during one pass. We discuss a new such algorithm, simple as well, that is faster, especially for large document images.

Citations

7 Document image compression and analysis – Kia - 1997
2 Fast connected components on images. http://web.media.mit.edu/~ rahimi/connected – Rahimi - 2001