Vision assistant features

[Nando88]

I was wondering if someone could tell me how to modify an image´s brightness, contrast and histogram with the vision assistant. I want to do this, so I can normalize the image and reduce the impact that the external light has on the image. The system I´m developing will always have illumination, but I don´t want the results to change so dramatically with just a little change in illumination.

Can someone please help me?

Thanks in advance!

[muks · Accepted solution]

There is direct function under image - brightness.  You can adjust brightness, contrast and gamma. If you want to go dynamic check lookup table

[Nando88]

Is there something I could do to adjust the histogram of the image, to normalize the image a little more?
Always using the vision assistant.

[muks]

In vision assistant you can play with the look up table functions.  In labview you can implement certain normalization functions

[Nando88]

Is there anything else I could do to normalize the image?

[muks]

How do you want to normalize the image? For example using histogram value or correlation of intesity values? Please give some details

[Nando88]

I tried what you told me before, and it worked great, but I think I can still get better results. I used the brightness, contrast, color plane extraction and lookup table. How can I use histogram and correlation?
Thanks in advance.

[Nando88]

I tried using histogram, and nothing happened. I tried both options, but nothing happened. The other thing is that I can't find correlation anywhere. Can you please tell me where I can find this option in the vision assistant?
Thanks!

[muks]

I have tried something similar.  I will post that once I get to my pc