How will you know if this system is better than professional graders ? Based on the information you have shared so far it is about the same. Will you determine the system is valid if it relates closely to the professional graders or if there is a big difference etc . ? So you also need good reliability ( use same card and get same grade ) and validity . How are the results so far with reliability ? Good Luck on this venture. Corners and borders for most cards should be easier I would think to program into grades.
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Wanted : Detroit Baseball Cards and Memorabilia ( from 19th Century Detroit Wolverines to Detroit Tigers Ty Cobb to Al Kaline).
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