Set white Frame to a Picture

[nbo2058]

Hey

I want to add a white frame with one Pixel thickness to a picture in order to separate particles from the image border. I need a gradient completely surrounding each particle, which isn't the case if they touch the image border.

I made a VI which reads an Image, and then makes an array filled with zeros in the dimensions of the picture plus two in each dimension. Then I convert that array into a picture which is two pixels bigger in x and y each than the input picture, and completely white.

Then I copy the first picture in the white one, with an offset of 1;1. This VI should put a white Frame onto my picture which it doesnt. Can somebody tell me what I did wrong?

Thanks for any help.

[udka]

White(255) and black(0).
- if you are working on binary image you can use IMAQ Reject Border to remove particles touching border: http://zone.ni.com/reference/en-XX/help/370281P-01/imaqvision/imaq_rejectborder/

[nbo2058]

Thanks for noting the wrong pixel value, but since my VI doesnt add any frame, this wasnt the issue.

I dont want to remove any particles.

[udka]

Use different IMAQ Create buffers with different names.

[udka · Accepted solution]

Edit Timedout. Use below snippet: