black output image of vision assistant

[cld2005]

i am using labview 8.6 and vision assistant 2009 to process the 640*480 RGB image caputured by a logitech qickcame. the problem is after the image gone through the vision assistant express VI the out put is a 640*480 all black image! however inspected from the inside of the vision assistant every process will be all right. so now i just cant get the output image! How this can be solved?

[Andrey_Dmitriev · Accepted solution]

At the first check that Binary Palette was selected for right Vision Display (Right Mouse Click->Palette->Binary)! Binary image appear black with grayscale palette.

Second - (if you ensure that your images and script are OK) - you can try to debug Vision Assistant Express VI.

Save copy of your VI, then right mouse click on Express VI->Open Fron Panel, then OK. Express VI will be converted into normal VI, go inside and debug it.

Andrey.

[cld2005]

Thank you for your reply! I can only exam the settings as early as monday. howevery i have tried your second method and i found the image all black out after the color threshold VI. any way i will check the setting on monday. Thank you very much!

[cld2005]

Thank you Andrey! i tried your first solution and it works! problem solved. Thank you!