How can I import a .png image with transparent background into Vision Assistant?

Norick_17 · ‎10-10-2009

Hi

I am using the NI Vision Assistant. Here I wanna overlay an existing image with another one. Therefore I use the overlay setup where I can import a .png image. If I do so I do not get

the transparent background of the image back, even I has been saved with transparency background. The image is shown with an orange background.

If I import the same picture to any frontpanel for example, I see the picture in the right way with a transparent background. What I do wrong? I attached the image which I would like to use.

thanks

Andrey_Dmitriev · ‎10-11-2009

Hi! Not sure how to do this in Vision Assistant. Try to use overlay (bitmap) or convert your image to mask. Transparency effect not supported in Vision. What you can do in LabVIEW is something like that:

Norick_17 · ‎10-11-2009

Hi Andrey... this was exactly what I was looking for, even it is not working for the vision assistant I think I can use it.

thanks..!

Stéphane K · ‎10-12-2009

Hello,

this is maybe due to the image type you are using. Under the following link you will find additional information about NI-IMAQ Supported File Formats.

http://digital.ni.com/public.nsf/allkb/4EEF7CB578DCDC5E86256D05000D3AE5?OpenDocument

Best regards, Stéphane

Norick_17 · ‎10-12-2009

Stephane,

I tried to save the image in different formats, even with an alpha channel - without success. Do you have an example image which I could try to import in the Vision Assistant?

regards

muks · ‎10-13-2009

Norick,

Can you mark andrey's reply as the solution?

MOI_maker · ‎12-20-2011

Hi,

I'm trying to do something very similar, but I want to overlay I colour image with transparency. This solution only seems to work for greyscale...

Any ideas?

Thanks,

Steve

Zahkay · ‎03-01-2014

Hello
I am having problem with my QR code scanning using a webcam
This is the actual image that is seen
I used vision assitant to make the image processing. But still it is not detected.
I took an image and process it in the vision assistant. still the output is not yielded.
Anybody can help

Machine Vision