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2. The user takes a sheet of paper and redraws the picture, step-by-step.
3. The user always sees the original picture on his phone (or he can send it to a printer via smartphone and get a paper copy of the picture). He can always check his progress by pressing the "Check Progress" button, taking a picture of the current results. The application will automatically compare the original picture with the user's one and will show the progress and similarity percentages.
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