Identify photos containing QR codes

[richardl152]

I have some photos from my GPS tracker software (gps4cam pro) which necessarily contain a QR code (80% of the shot) to sync the gps post-processing of my non-gps camera shots.    Finding these QR photos in the '000s of images shot is painful - visual inspection the only way to sort them.   Is there a way that exiftool can be configured to distinguish and then pull these photos into a separate directory?   Not to interpret the QR code,  just to identify that there is something in the shot that is most likely to be one.   (Maybe a lot of black and white contrasting squares within a color photo)

[Phil Harvey]

ExifTool deals with metadata only.  It doesn't do any image manipulations or analysis.

If there is something unique about the metadata in these shots then ExifTool could help, but I suspect you need to do some image analysis.

- Phil

[richardl152]

I sorted it.   This is my solution for Mac  terminal bash shell.

Firstly invoke home-brew installation of the zbarimg command (bar code image analysis)

brew install zbar

then add this function to your bash aliases

_______

function qrcodetest (){
for file in *  ; do
$HOME/Scripts/qrcode_sort.sh "$file" ;
done

}
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and this as a script in ~/Scripts or your own choice of directory and adjusting your own paths to suit.

________

#!/bin/bash                                                                                                                                                                                                 
mkdir -p ../QRcodes;
mkdir -p ../noQRcodes;

if /usr/local/bin/zbarimg -q "$1" ;  then  mv "$1" ../QRcodes ; else mv "$1" ../noQRcodes;
fi
________

If you want just to add tags, this is the script
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#!/bin/bash                                                                                                                                                                                                 

if /usr/local/bin/zbarimg -q "$1" ;  then  /opt/local/bin/tag "$1" --add QR_code  ; else /opt/local/bin/tag "$1" --add no_QR_code ;
fi
____

obviously you'll need to install tag   (sudo apt install tag or similar)

I hope this is helpful to others

Richard