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SCANGRAPH: a program for digitization of graphs using an image scanner

K C Yan1, F T Chau

  • 1Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic, Hung Hom.

Computer Applications in the Biosciences : CABIOS
|October 1, 1993
PubMed
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SCANGRAPH software vectorizes raster graph images into digital data. This enables easy data extraction and manipulation for scientific analysis.

Area of Science:

  • Scientific visualization
  • Data processing

Background:

  • Graph digitalization is crucial for data extraction.
  • Manual methods are time-consuming and prone to error.

Purpose of the Study:

  • To introduce SCANGRAPH, a software for vectorizing graphs.
  • To enable conversion of raster graph images to digital data.

Main Methods:

  • SCANGRAPH vectorizes single continuous line drawings and graphs.
  • Converts raster images (TIFF format) to digitized graphs with x, y coordinates.
  • Outputs data in ASCII format for compatibility with other software.

Main Results:

  • Successful vectorization of various graph types.
  • Accurate extraction of x and y coordinates from graph images.

Related Experiment Videos

  • Data output in a universally compatible format.

    • Conclusions:

    • SCANGRAPH provides an efficient solution for graph digitalization.
    • Facilitates data manipulation with features like peak identification and smoothing.
    • Enhances data accessibility for further analysis.