LCD screen

[Yesh]

I want to scan an LCD screen and inspect each and every pixel in it.

I have to pick all the bad pixels on the LCD screen. I need is a

idea or an algorithm of how to go about this problem. I would capture

the LCD scree using a camera. I have Labview vision developement

module.

[Andrey_Dmitriev]

- Fill your LCD screen with black

- Snap image, apply threshold and check that you haven't white pixels

- Fill your LCD screen with white

- Snap image, apply threshold and check that you haven't black pixels

Done!

Andrey.

[Yesh]

Audrey thanks for your quick answer. I have

been very confused with the thresholding of

an image. Is there an auto threshold option

or do we always need to manual threshold

for these type of applications. I had a similar

idea but had difficulty in implementing it. If you

could help it would be great.

Yesh 

[Yesh]

What I meant above was do you have an idea or

an algorithm with which I could implement this

in labview. I am new to labview

[JeffL]

If you have the Vision Development module, there is the IMAQ Threshold VI.

[muks]

I will suggest you play around with vision assistant and get a grip. You can also generate lv code from vision assistant. You can optimize it later anyway.