opencv real time a4 sheet detection using android device e camera

asked 2016-05-13 09:55:56 -0600

I am try to do a real time a4 sheet detection using opencv in android.assuming a4 sheet(half a4 is also fine) on the table and when we place the camera on top of the a4 sheet and slowly move upwards.once the a4 sheet is fully detect on the camera view automatically capture the image.can you please guide me the correct path to achieve this.really appreciate the help. thanks

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answered 2016-05-14 13:32:16 -0600

Tetragramm

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Take a look at the Squares sample program. Run that on each frame until you have a square that is the appropriate aspect ratio filling up most of your frame. As long as the table isn't the same color as the paper, this should work.