Title :
Segmentation of compressed documents
Author :
De Queiroz, Ricardo L. ; Eschbach, Reiner
Author_Institution :
Xerox Webster Res. Center, NY, USA
Abstract :
We present a novel technique for segmentation of a JPEG-compressed document based 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 identified and cropped (or replaced) from the compressed data without decompressing the image
Keywords :
code standards; data compression; document image processing; image coding; image segmentation; telecommunication standards; JPEG-compressed document; block activity; compressed data; compressed document segmentation; encoding cost map; image segmentation; pixel brightness; region identification; Data mining; Electrochemical machining; Image analysis; Image coding; Image resolution; Image segmentation; Information analysis; Pixel; Testing; Transform coding;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.631984
