Labview IMAQ ImageToArray

[lamarck]

Hello everyone, I have a problem using IMAQ ImageToArray function. I am trying to take pictures with two cameras at the same time using a hardware trigger, the cameras take images in RGB, I convert them to Grayscale (u8) and finally I use IMAQ ImageToArray function. It works when I use one camera but when I use two cameras it works for less than 1 second and I get an error in IMAQ ImageToArray function, the error says it could be an invalid image. Which could be the problem?

[TiTou]

Can you show your code please?

Are you sure the error is not related to the image acquisition? If not, it could be an issue with you IMAQ image buffers, dealing with them can be confusing because they are by-ref beasts.

[TiTou]

Here is a discussion that might not be related to your problem but I think it's interesting to know about it if you're using IMAQ images : https://lavag.org/topic/21212-imaqimage-references/

[Rahulbala]

Hello

Did you try taking images from camera1 and camera2 separately?

If it is working fine separately, then it is definitely image reference issue. Please attach the code to know exactly what went wrong. 

Please go through the below thread to handle image references

https://forums.ni.com/t5/LabVIEW/Best-practice-handling-images/td-p/3630991

-Rahul

Hit KUDOS for Thanks