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camera image from cmvision is inverted?

I'm trying to do color blob tracking with my turtlebot. I'm using cmvision and used color gui to the the correct YUV numbers for the color I want to track. I add those the the colors.txt file and everything seems to be going well. When I run cmvision the colors seems to be inverted and so the blob tracking doesn't work. I don't get why it's doing this. I'm using the default launch file and only changed it to use the kinect camera.