Jun 14, 2013 at 4:23 PM
Edited Jun 14, 2013 at 4:54 PM
I really like this project and the available examples. During the last days I tried to create a wp8 app that is able to scan two QR and one EAN-13 at the same time.
I used to use the ClearImage Library for .NET in WPF projects which is able to manage this task on very noisy and skewed images, angels or bad lightening,
On WP8, very often only one of the QR' or the EAN code gets decoded. From time to time, the decoded EAN contains the wrong numbers. I haven't managed to get both the QR and the EAN decoded at the same time or even all the three at the same time.
What I tried as input source was:
- loading from file
- GetPreviewBufferArgb (full size or cropped to a certain viewfinder)
- image capture (Lumia 920) - full or cropped
Processing using BarcodeReader.DecodeMultiple with all params set/unset like TryHarder, AutoRotate, TryInverted and having only QR and EAN codes activated.
There seems to be no difference (in respect to the results) between having the reader created all the time or only once/per page instance.
The android zxing scanner app recognizes all the codes (one after another) in no time, even if there is another QR partially visible - meanwhile the wp8 app seems to get confused somehow .. takes ages to recognize only one code
Is there any advise on the image quality, noise reduction, view angle that I forgot to test? or is it generally a bad idea trying to decode multiple codes at once using this library?
Thanks for any suggestion!