Tinting an image display red

[walluser]

Hello!

I'm taking in video from a webcam and displaying it in labview, and I'm looking for a way to tint the screen red. Sounds simple, but I am curious if there's any way I can do it that doesn't require me to programatically change the RGB values. I had been doing it before by setting G=0 and B=0 in an RGB image, and while that works fine... I have to do a bunch of other processing real-time as well, and the whole separating of RGB into 3 arrays and re-merging them isn't fast enough on my machine to be practical. And obviously another way is to change all of the hues in an RGB--> HSV variable to red, but again, my machine isn't fast enough to do it at 30 fps.

So yeah. Any ideas?

Thanks in advance.

EDIT: So could I just use a different color palette in my image display? I just have no idea how to change that...

[Don_Phillips]

Use a different image (colored red) and overlay it.  You can then simply mess with the transparency settings.

I found a similar example here:

http://zone.ni.com/devzone/cda/epd/p/id/5038

[altenbach]

Is the image true RGB or paletted? If it is palletted, you could just rewrite the color table.