red coloured digit not recognized

[amzrhh]

Hi experts,
i am running an installation of AI on the edge to monitor the output of a rainwater store. The watermeter i am using has got only a digital counter. The problem i am struggling with is the first digit after the decimal dot, which is red coloured. (see attached picture.) There is never a match. I am thinking about to take the images in black and white but i haven't found an advice so i don't know now to do so.
Many thanks in advance for a hint.

[jomjol]

Taking the image in black and white is not possilbe as the the neural network expects a RGB image. The only way to improve is to add you type of image to the training.

[danieldownload]

Same here, Andrae/TECHEM Meter (Germany), only one row with 8 digits, the last 3 are in red color. Some got recognized, some not.

Any chance to improve it?

[jomjol]

I need trainings data - that will help

[danieldownload]

Ok, how many and in which format/type?

[jomjol]

https://github.com/jomjol/AI-on-the-edge-device/wiki/ROI-Configuration#1-get-images-into-the-next-training-round

[danieldownload]

I need to correct my POI's first, how can I run the setup process again without to remove and rewrite the sd card?

[haverland]

You do not need setup again. Go to "Configuration" and then to "Region of Interest (ROI)"->"Digital ROIs"

[danieldownload]

Super, I did a ROI correction and now lets see if it gets better. I noticed that the picture on Overview page is always overexposed/too bright while it's shown correctly on Reference Image site. After referencing the image again, it's shown correctly on Overview site. Same procedure is needed after next reboot, what I'm doing wrong here?

[amzrhh]

Hi experts, there could  be another issue with the watermeter below, at least I struggled with it: I assume the last digit is not a real "digital" one. It turns continouly slowly (from 0 to 1  for example) while passing 1000 Liter, in my case it could last about half a week. Only when the digit it fully visible, the programm gets the right value. For me only 2 times a week I got the right values for some hours. The red color problem I solved by exchanging the red digit with a black leading zero digit (exciting puzzle to reassemble the counter after disassembling), but I failed to find a solution for the quasi-analog operating last digit. So I exchanged the watermeter with one of that type the brillant AI on the edge is trained on. best regards, August Am 13.08.2022 um 15:45 schrieb danieldownload:

…

Same here, Andrae/TECHEM Meter (Germany), only one row with 8 digits, the last 3 are in red color. Some got recognized, some not. Any chance to improve it? Bildschirmfoto 2022-08-13 um 15 41 24 <https://user-images.githubusercontent.com/26095164/184496846-c6fbbbc0-ea33-4926-96cf-00c579f86c21.png> — Reply to this email directly, view it on GitHub <#833 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AZY5NG7WZXH7NUEFIDIECZTVY6RHZANCNFSM5ZXI6TGQ>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[danieldownload]

Hello August,

interesting point, in fact the last number is moving slowly but my understanding was that this is the normal behavior for such a meter. Never saw a meter changing like a flip-clock.

[haverland]

You could try the new 11.0.0 Version with the new models. I think it's more robust and you will have intermediate states. But you will need to reconfigure the digital ROIs in height.

[danieldownload]

one more refresh and it's back to normal with correct values.

[haverland]

Look at "Value:" its now without trailing zeros.

Could it be you set the alignment only for the qr-code? Configure both again and store it. If you look at the screenshot above the qr-code is not centered. Means the m3 and the qr-code can not be aligned together.

If nothing helps. Begin with reference image (new reference and don't forget to store it). After both alignments and last look at the ROI-Configuration again. After all reboot and it should fit after a few minutes.

[haverland]

See at status. The screenshot is before alignment.

[danieldownload]

I rearranged the alignment points, the QR code box is a bit shifted to the right, compared as shown on Reference Image page, while m3 looks correct. Gonna turn the cam tomorrow to look straight on the number, it must have something to do with the turn and the angle in which the cam looks down on the numbers.

Looks very promising, thanks a million for your help 👍

[danieldownload]

ahhhh, just noticed I didn't take a new pic for referencing...

[rspring]

I came across this older discussion. Still I would like to share my solution with you. I have a water meter with bright red background on last three digits resulting in poor recognition performance. Now I am using an external RGB LED with color set in the configuration to RGB(0, 32, 32). This almost completely turns the bright red into dark black :) From this:

Into this:

[caco3]

I have a RGB ambiente light at home, turning it to red also makes all red things to nearly look black, really impressive