Machine Vision
display the detected image
You can try something like this (see the attachment).
Hope it answers the question.
Best regards,
K
Hello lazer,
In my opinion, the best option is to create an image mask and apply it to the image. Take a look at the "IMAQ ROIToMask 2 VI".
Your matching algorithm outputs "Rectangles" which gives you the coordinates of the corners and the angle. Use this to build the ROI - I belive "IMAQ Convert Rectangle to ROI" is capable of this. Then transform the ROI to mask and apply it.
I currently do not have a PC with Labview, so I do not have any evidence to support this. But I can try to help you tommorw in case you get stuck. Or maybe someone else has a better solution.
Regards,
K
Hello lazer,
attached is the example of creating an image mask (only for first detected shape with highest score correlation). Be careful about the order of detected corner points - I am not familiar if the output is the same for all orientations of rectangles.
You can alternatively also extract that portion of an image, but you have to consider that images are arrays with NxM dimensions, so you can only get a rectangular (square) image as a result. The same goes for image masking of course, but here all values outside the mask are equal to 0, where as when extracting the image you also get the values of pixels surrounding your region of interest.
Best regards,
K
