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Basically for example, in an application there's a randomized, standard 3x3 number pad populated by the numbers 0-9 non-repeating with 10th number in the bottom middle position. What I want to do is determine the location of each digit in the number pad in its entirety or only 4, 6, and 8 for example.

The positions of each number cannot be determined through memory (as a rule) so my first thought was template matching. The number pad is always in the same format and in the same location so this would in theory be alright.

I have searched around here briefly and found a couple of things

1) OCR is a viable solution to my problem as well, however, OCR may be 'overkill' for my needs and without proceeding further as of yet, I don't know how complex or simple OCR is to implement.

2) Down and dirty bruteforce approach sliding templates and doing a similarity threshhold which I assume would be anything but efficient as found here:

Detect the location of an image within a larger image

Aside from reading memory, are OCR, template matching, and bruteforcing the only solutions to this?

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Richard
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  • This is hard to imagine. First thought: Arent the numers always in the same order? Second thought: Why *number cannot be determined through memory* (what ever that means)? – lokusking Jul 26 '16 at 15:43
  • For my specific case the positions of each number in the number pad will be randomized. In the application, each number is a button so I assume the value of each button can be read accessed in memory removing the need to analyze the screen. – Richard Jul 28 '16 at 06:05

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