Welcome new user! You can search existing questions and answers without registering, but please register to post new questions and receive answers. Note that due to large amounts of spam attempts, your first three posts will be manually moderated, so please be patient.
Because of un-manageable amounts of spam despite our use of CAPTCHAs, email authorization, and other tools, we have discontinued this forum (see the 700k+ registered users with validated email addresses at right?). Please email us any questions or post bug reports and feature requests on GitHub at https://github.com/jevois -- The content below remains available for future reference.
Welcome to JeVois Tech Zone, where you can ask questions and receive answers from other members of the community.

Jevois works fine. But, I cannot get eye tracking to work.

0 votes
I tried using the resolution, but could not get the GREY to work.  I tried VLC, but no luck.  I downloaded Eye Tracker, but am not sure it can work on Windows.  Please advise.  We are considering using this option for an application.
asked Mar 29, 2017 in User questions by radiusmike (120 points)

1 Answer

0 votes

Yes, GREY is not widely supported on Windows freeware software, though it works great with Linux. You may have to use some commercial software. We tried some from theimagingsource.com that has some greyscale cameras, but it only supports their own cameras. If anyone here has experience with Y800 grayscale capture on Windows, please share.

Otherwise, you can always modify the DemoEyeTracker module to output YUYV instead of grey (you will have to modify the C++ code and recompile, this is done on a Linux machine only). You would add a line with a call to jevois::rawimage::pasteGreyToYUYV() to paste the greyscale output from the eye tracker to an YUYV image that will be sent over USB.

If this is difficult, we can do it here for you in a few days.

answered Mar 30, 2017 by JeVois (46,580 points)
We are stuck at this point.  You kindly offered to support this.  Please help.  We are developing a reference design for a commercial project and Jevois is our go to eye tracker.  merci beaucoup.  Mike
I just found a solution to this issue; see my answer here: http://jevois.org/qa/index.php?qa=346&qa_1=grey-mode-in-amcap-on-windows-10-causes-error

Basically you need to install a directshow filter that automatically converts between the greyscale mode and the ones windows natively supports. Luckily, one is freely available!
...