Wrong detection of 13 (detected as 8)

[maxux]

Hey, I try to use ssocr to get real time monitoring of a battery which only have status display. I could get expected data but I hit an tricky case for a 0013 detected as 008. Is there any specific option to workaround this ?

Here is the full image:

Here is the debug cropped zone:

The command executed:

./ssocr -f white -b black -d 4 -D crop 571 229 178 76 /tmp/2024-05-07-201625.png

Any tips are welcome, thanks ! :)

[auerswal]

You just need to crop away all image parts that do not show a single line of seven segment displays. The following works for this number from your image:

$ ssocr -f white -d 4 crop 571 235 140 55 issue25.png 
0013

For an image like this with many numbers, each shown with an individual group of seven segment displays, you need one ssocr invocation per number (i.e., per group of related seven segment displays).

[maxux]

Thanks, this works quite well on a large set of data ! With < 1% error, perfect, thanks a lot !