error message: the image is not large enough for the operation

[gigiyi]

Hello,

I am doing some image processing using NI-IMAQ. I got this error message everytime I run my program. A dialoge box would pop up to show this error and i can choose to stop or continue the program. if i choose continue, my program works fine. it only happens when the program just starts to run. I am making a program to see the differece when i use 'imaq subtract' from 'absolute difference'. so i have two input images. i connect both of the two images to the two imaq functions i am trying to compare. at first, i was only using one of the two functions. everything is fine. but i want to see the difference of the two functions, so I put them together at the same time instead of watching the difference individually. so I put a second function in. no matter which of the two is the second i put in, the error message shows up.

I tried to copy the images to avoid the double use of the original images. but got the same error. anyone has ever met this problem too? or have any advice to solve the problem? I appreciate any suggestions from you. thank you very much.

gigiyi

[Remzi]

Hi,
Please take a look at the link below let me know if it helps with the problem you are having.

http://forums.ni.com/ni/board/message?board.id=200&message.id=2180&requireLogin=False

Best Regards,
Remzi A.
Applications Engineering
National Instruments

[gigiyi]

thanks for your answer. I didn't quite understand the link you gave me. but i have solved my problem. I just connected the error cable through each vi. I guess the by doing so the program knows the sequence to run the vis. the messages you forwarded to me do help me to think. however, i am still not sure about the reason. any further explainations would be appreciated.

gigiyi