Comments (1)
Otsu thresh hold method will not work here because of uneven lighting conditions. We will have to use adaptive thresholding methods.
We have used Adaptive Gaussian threshold technique.
thresh = cv2.adaptiveThreshold(
warped, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY_INV, 11, 2)
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Related Issues (15)
- System is not able to detect the largest contour. HOT 2
- Choose a correct bubble threshold. HOT 1
- Change the design of OMR. HOT 1
- Modularize Code
- Module should throw error.
- OMR scanned by camera not working properly. HOT 2
- Can we use it detect radio-groups on single line and multiple lines?
- Sorting contours is not working properly HOT 2
- Detection of unattempted answer should not be there.
- Handle the case when one or more bubbles are marked
- Information about the installation in the readme?
- Finding contours in threshold image is not working HOT 1
- System Detecting D as potential bubble. HOT 1
- Need new function and algorithm to sort contours.
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