invalid roi

[TANDIS]

Hello all

I want to choose an area of the image. But I'd put a value to the rectangle input , I get the following error:

Error -1074395720 occurred at IMAQ OCR Read Text 3

I'm a new, please help me!

[Bob_Schor]

Even more helpful than a picture of the error message is the actual LabVIEW code (not a picture of it) that caused the error.  Sending us just the error is like saying "My teacher said my answer to Question 3 was wrong -- what was my mistake?" and not telling us the question!

Bob Schor

[TANDIS]

Thank you  for your reply, I am trying to read a text using OCR. I would like to detect the characters. Because my text have 2 line, I have to segmentation of image. I would like to my image (attach file (1)) convert to 2 Roi, Each ROI includes a line (attach file (2)) .

When I want to define a rectangle ROI I get an Error!!!!

TANDIS

[llebras]

Indeed, a code of what you re trying to do would be great...

I don't know if it will help you but I attach a picture of one of my VI where I had a ROI error for the contour detection function. Here my ROI contains the entire image. Maybe you can try this first. If you don't get an error, you will juste have to set the parameters to position the ROI as you want.