Segmentation of Compressed Documents

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Segmentation of Compressed Documents
We present a novel technique for segmentation of a JPEGcompressed documentbased on block activity. The activity is measured as the number of bits spent to encode each block. Each number is mapped to a pixel brightness value in an auxiliary image which is then used for segmentation. We introduce the use of such an image and show an example of a simple segmentation algorithm, which was successfully applied to test documents. The desired region can be identi ed and cropped or replaced from the compressed data without decompressing the image.
Ricardo L. de Queiroz, Reiner Eschbach
Added 26 Oct 2009
Updated 26 Oct 2009
Type Conference
Year 1997
Where ICIP
Authors Ricardo L. de Queiroz, Reiner Eschbach
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