Scanning is too sensitive

[tjwoon]

Scanning is too sensitive

[nrcrabbe]

@dcousens

Lines 147, 148 of android/ZBarScannerActivity.java

scanner.setConfig(0, Config.X_DENSITY, 3);
scanner.setConfig(0, Config.Y_DENSITY, 3);

Change the values 3 to 1. Fixes the false scans and I haven't had any negative issues after the change. Would be great to have these either changed to 1 (if there are no unintended consequences), or at least have it parameterised.

Cheers

[jjbridges]

That's "the man" sending you subliminal messages. :)

[tjwoon]

This is interesting 😆
Will have to check if the upstream ZBar project has a known issue on this.
Thanks!

[nickgerman]

@tjwoon I am noticing this as well on newer devices, not so much older ones. I wonder if its to do with the X_DENSITY and Y_DENSITY. Just lowered the density to 1 and am now getting less barcodes in the wild, my guess would be the higher megapixel cameras are causing this to be sensitive.

[binoculars88]

@nickgerman thanks for this. Was getting some false scans too. This fix seems to work.

[dcousens]

@binoculars88 / @nickgerman can you elaborate on how you resolved this?
Is it something we could add as a parameter?

[dcousens]

Thanks @nrcrabbe