How to add a scale bar for an image using color palette

[hanwei123321]

Hi,

I am using Labview to display gray scale images captured by a monochrome camera. By applying color palette, the gradient of the image is shown with the specific color profile, such as a "rainbow" palette. However, is there a way to show the color scale along with the image? In that way the scale bar can be a reference for the intensity gradient in the image. 

Greatly appreciate. Thanks.

[Gregory]

I don't know of a way to show a scale bar using the image control. You can switch to an intensity graph instead. Alternatively, you could create another image to put next to your first with values going from 0 to 255 (or higher depending on the resolution of your camera).

[altenbach]

I've used a 1D array of narrow frameless colorboxes in the past.

[hanwei123321]

Thanks a lot! Your reply and example is very helpful. I am going to try the strategy..

[paul_cardinale]

You could use a Color Ramp and place it next to the image.

[hanwei123321]

Hi Paul, It's very interesting to see your vi. However, I currently still work with a previous version (2017) than yours (2018), so couldn't really open it up on my machine. Could you paste a snapshot of your diagram for me to see? I have implement the way Gregory provided and then add some real-time scale adjustment into it to dynamically link to the camera signal gain in my program. 

Thanks a lot for your work and advice.   

[paul_cardinale]

Here it is in LV 2017

[hanwei123321]

Wow, this is a very cool way of doing it! thanks!