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Wang et al., 1989 - Google Patents

Classification of newspaper image blocks using texture analysis

Wang et al., 1989

Document ID
729362282007204796
Author
Wang D
Srihari S
Publication year
Publication venue
Computer Vision, Graphics, and Image Processing

External Links

Snippet

An important step in the analysis of images of printed documents is the classification of segmented blocks into categories such as half-tone photographs, text with large letters, text with small letters, line drawings, etc. In this paper, a method to classify blocks segmented …
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Classifications

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    • G06K9/36—Image preprocessing, i.e. processing the image information without deciding about the identity of the image
    • G06K9/46—Extraction of features or characteristics of the image
    • G06K9/4604—Detecting partial patterns, e.g. edges or contours, or configurations, e.g. loops, corners, strokes, intersections
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
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    • G06K9/00—Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/00442—Document analysis and understanding; Document recognition
    • G06K9/00463—Document analysis by extracting the geometrical structure, e.g. layout tree; Block segmentation, e.g. bounding boxes for graphics, paragraphs, words or letters
    • G—PHYSICS
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    • G06K9/4642—Extraction of features or characteristics of the image by performing operations within image blocks or by using histograms
    • G—PHYSICS
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    • G06K9/3283—Inclination (skew) detection or correction of characters or of image to be recognised of characters or characters lines
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