Difference between revisions of "OMR templates"
From OpenKM Documentation
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| + | OMR ( Optimacl Mark Recognition ) engines is especially suited for extracting data from forms that have been photo-copied and then scanned; hence, the resultant images are likely to suffer from rotations, smudge marks, and random lines here and there. Examples of a few forms that the tool is able to handle with 100% accuracy are shown here. | ||
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| + | [[File:2circle-2-small.gif]] | ||
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| + | [[file:2circle-3-small.gif]] | ||
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| + | == Step 1 - Create template == | ||
| + | * First make a form in powerpoint using the template [[File:Omr_patterns.zip]]. Make sure that you do not move the two concentric circles in the top-left and bottom-right corners of the template. These are used by the software to determine the angle of rotation of the form. | ||
| + | * Take a printout and make as many photocopies of the form as you want. | ||
| + | * On the original printout, color all the marks with a black pen, and scan this marked up printout. Please be as careful as you can to align the printout so that there is no rotation. Some amount of error is fine, but not too much! We will call this scanned image the template, shown below. | ||
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| + | [[File:2circle-org-colored-whole.gif]] | ||
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| + | == Step 2 - Upload template == | ||
| + | [[File:Okm_user_guide_421.png|center]] | ||
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| + | [[File:Okm_user_guide_422.png|center]] | ||
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| + | The training process will generate two files .asc and .config | ||
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| + | [[file:Okm_user_guide_423.png]] | ||
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[[Category: Administration Guide]] | [[Category: Administration Guide]] | ||
Revision as of 13:10, 29 April 2013
OMR ( Optimacl Mark Recognition ) engines is especially suited for extracting data from forms that have been photo-copied and then scanned; hence, the resultant images are likely to suffer from rotations, smudge marks, and random lines here and there. Examples of a few forms that the tool is able to handle with 100% accuracy are shown here.
Step 1 - Create template
- First make a form in powerpoint using the template File:Omr patterns.zip. Make sure that you do not move the two concentric circles in the top-left and bottom-right corners of the template. These are used by the software to determine the angle of rotation of the form.
- Take a printout and make as many photocopies of the form as you want.
- On the original printout, color all the marks with a black pen, and scan this marked up printout. Please be as careful as you can to align the printout so that there is no rotation. Some amount of error is fine, but not too much! We will call this scanned image the template, shown below.
File:2circle-org-colored-whole.gif
Step 2 - Upload template
The training process will generate two files .asc and .config
