cathair28
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Thanks for the suggestion, I'll mess around with it and report back! -
Thanks for the reply! I have a couple different ROIs set up and I am measuring the amount of space inside the box that the "white stuff" occupies. (see the image below) I was a little vague about how I am actually doing the thresholding. In short, I am not just using the threshold vi and hoping for the best. I am trying to use an algorithm (using the Gaussian mixture model) that dynamically changes but like you said, with the lighting/contrast/brightness of the image always changing it does not always perform that well, whereas the edge detection seems to always find the correct edges.
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Hello, I am having a bit of an issue applying a threshold to an image and getting reliable results. I am thinking using edge detection prior to doing any other image processing could make this work... but I am at a loss for how to implement it. If you look at the image below you will see the root of my problem. The top set of images and bottom are only a second or 2 apart but the threshold sees them differently, yet the edge detection seems to correctly detect the edges the same. I only care about the range of pixels that usually makes up the brightest part of the im
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I would like to try and upgrade my current CCD (pretty close to 640x480) to a higher res model (1080p). Here are my two requirements: It has to work LabVIEW/Vision software (could interface through GIG-E/IP or whatever) It has to fit inside of a tube about this size: (marker for scale) http://i.imgur.com/9i8nPRE.jpg The housing tube can be increased in size up to about a 1.25" diameter the tube runs back 2' until it opens up into an open space where we have a gigabit switch. The camera could just have a telescoping lens or be small enough to fit in a tube that size with the cables runnin
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Help with using an analog video signal to process frames
cathair28 replied to cathair28's topic in Machine Vision and Imaging
Thanks for the response, I think ill do as you suggested and try a few different ones -
Help with using an analog video signal to process frames
cathair28 replied to cathair28's topic in Machine Vision and Imaging
Thanks for the response, I have been running some tests with my current setup (the axis video encoder) and the loss of image quality via compression may not be as bad as I had thought. That being said, it will take a fair bit more testing before I will feel confident about that. Based on your suggestion I believe I may pick up one of these and run some comparisons. There is still a desire for the video to be put on a network so I am still open to suggestions for how to accomplish that task. -
I recently had a project dropped into my lap and have had a tough time finding information about it on the web. Here is a quick outline of my current issue. I am trying to take in an analog video signal (640x480) and process the stream in LabVIEW/IMAQ/IMAQdx (end goal would be to have uncompressed video being processed). I need to be able to have an uncompressed image to do calculations on. I am currently trying to achieve this by using an axis video server and converting the analog signal into a digital signal and finding the camera via an IP address (having networked video was requeste