It all depends on how accurately you want the images to be joined.
If you just want to display them as a single image, it is very easy. IMAQ ImageToImage will paste one image into another.
If you want to seamlessly join them together, and do it accurately enough for measurements or feature detection, it is a lot more difficult. It is impossible to rotate and align the cameras so that two images can be pasted together accurately without manipulation of the images. You will need some mapping tools and figure out how to rotate and align the second image with the first. You will need a small portion of the images to overlap so they can be matched up. You may need to map both images to eliminate distortion first. If your part has a noticeable thickness
variations, you will get different perspectives for the two images.
Bruce
Bruce Ammons
Ammons Engineering