- Step #1: Detect the exam in an image.
- Step #2: Apply a perspective transform to extract the top-down, birds-eye-view of the exam.
- Step #3: Extract the set of bubbles (i.e., the possible answer choices) from the perspective transformed exam.
- Step #4: Sort the questions/bubbles into rows.
- Step #5: Determine the marked (i.e., “bubbled in”) answer for each row.
- Step #6: Lookup the correct answer in our answer key to determine if the user was correct in their choice.
- Step #7: Repeat for all questions in the exam.
for study purpose