Addmen OMR software has the ability to read and evaluate OMR sheets. However, it can typically read only those sheets that have been designed using the OMR sheet designing software. Nevertheless, if you have a lot of pre-printed OMR sheets that have been created using the old OMR technology, you can still get them read by the OMR software, by calibrating the sheets using the OMR software.
For calibration, the pre-printed sheets are first scanned.
By keeping an existing OMR sheet in the background, it is possible to calibrate the scanned image of the pre-printed sheet and create a replica of its sheet design.
Pre-printed sheets possess some important components and parameters that need to be calibrated before the OMR software can read the sheets.
Here are certain important components or elements that the OMR sheet should have for successful calibration.
Only MCQ blocks do not make a sheet of paper an OMR sheet. It needs to have index points on all four corners of the sheet, to form a perfect rectangle.
If the sheets do not have index points but a time line, the starting and ending indicators of the time line can be considered as index points.
The OMR blocks or grids should be in perfect alignment. In other words, all the rows and columns of the OMR sheets should be perfectly placed.
If you have the advanced version of the OMR software, you can rectify any misaligned bubbles
The calibration of pre-printed OMR answer sheet design can be done easily with the help of the Addmen OMR software.