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Bubble Vision: Optical Mark Reader

Project Description

Extract answer choices from scanned jpg bubble forms.

Graphical User Interface


Command Line

$ [options] imagedir
Input image directory (front side). Lowest numbered image identifies the key.
Optional back side image directory
Set the form string (default and only supported=”882E”)
Show this help message and exit


validation images
Answer bubble means and reference box fits drawn over each input image.
Image path, name box image, and total score for each test.
Answer choice counts by question. Key excluded.
Answer choice matches key (0/1). Same indices as choices. Score is 0 if key is -1.
Answer choice matrix. Tests in rows and questions in columns. 0-4=A-E, -1=n/a.


$ pip install omr
$ pip install --upgrade omr
$ pip uninstall omr

Example Validation Image


  • Windows
    • $ --help gives error: too few arguments
      • fix argument passing to “py” file associations from python %1 to python %1 %*
    • unable to find vcvarsall.bat
      • I was able to use $ easy_install Pillow when pip failed to install Pillow 2.2.1


Greg Miller

Release History

Release History

This version
History Node


History Node


History Node


Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
omr-0.0.73.linux-x86_64.tar.gz (23.6 kB) Copy SHA256 Checksum SHA256 any Dumb Binary May 8, 2014
omr-0.0.73.tar.gz (11.9 kB) Copy SHA256 Checksum SHA256 Source May 8, 2014

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