How can I IMAQ KING to show only the region of interest?
Hello
I cannot acquire data of only my region of interest using IMAQ KING. When I try to select a region of interest (i.e. - a region of 10 x 5 pixels) and to display only in this region, a result of the size of the correct image, but with all the black pixels. My code is attached. I believe that the error comes from the extracted IMAQ Tetragon VI. Since I'm not inputing options for VI, the default fill value is 0 (black). How can I modify my code to select a region and view the image of this region? Any help is appreciated. Thank you.
Your problem is probably with the function type cast. The image data seem to be 16-bit. The type cast function is not resize these data, it just clipped the high byte. Since you're using the same reference to the image in two places, the image now refers to an 8-bit image (since that's what you type is casted to) to the time you get to the loop so the upper byte is lost.
Tags: NI Software
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