reading values from lcd using vision

[nishar10]

ma project is to read values from a lcd display...i was not able to set an roi ... cn any help me out...i hav attached my codes

[P@Anand]

Please stick to a single thread, don't create duplicate threads. Also don't use short forms its not encouraged.

Since I don't have Vision module let me ask you what you have done. Are you trying to capture the LCD as an Image? What is the hardware you used?

[mikeporter]

Is the point of the application to read whatever appears on the LCD, or just determine whether the LCD is working?

These situations could require 2 very different answers.

Mike...

[nishar10]

to read the values whatever in lcd

[mikeporter]

What kind of LCD is it, and why can't you set an ROI?

Mike...

[nishar10]

It is a 7 segment lcd display.......i used get lcd roi...in that i am getting invalid roi......i dont know how to set an roi 

[muks]

If you have vision assistant you can try image mask. Post an image if possible. What is the camera that you are using?

[nishar10]

i am using a web camera......i want to set roi for lcd....i m using get lcd roi dispcriptor nd read lcd functions in my programe.......i dont knw how to set roi in lcd roi discriptor..... 

[muks]

Did you try the image mask function?

[nishar10]

i have tried selecting area using rectangle and i converted it into roi discriptor,,,but the roi discriptor which is given to get lcd roi discriptor......has a result that invalid roi discriptor....