webnutil-service - error extracting coordinates

[sharoncy]

I ran a webnutil_service test with "test2_tTA_NOP_nonlinear" and got the following error message. What is going on here?

Conclusion: This was my mistake. I failed to enter the correct colour to quantify. PyNutil follows the "bgr" colour convention. I updated the colour to 0,0,255 and it worked fine, but took a long time.

To do: Check that the numbers match Nutil.