No Facial Detection Ubuntu 18.04

[Timm Murray]

Thanks, Martin, you pointed me in the right direction.  What happens is
that the Ubuntu package opencv-data puts it in /usr/share/opencv, while the
plugin looks in /usr/share/OpenCV.  Adding a syslink makes it work.

Next question is if this should be fixed in the plugin, or the Ubuntu
package?

Thanks,
Timm

On Tue, Sep 11, 2018 at 8:06 AM, Martin Vachovski <
Martin.Vachovski at skytek.com> wrote:

> Hi Timm,
>
>
> I think you should make sure you have the "profiles" for face/nose/mouth
> etc.
>
> These are the Haar features that OpenCV uses for the face detection.
>
>
> You can specify them with
>
> ... ! facedetect profile=[path] ! ...
>
>
> According to
>
> gst-inspect-1.0 facedetect
>
>
> The default path is:
>
> /usr/share/OpenCV/haarcascades/haarcascade_frontalface_default.xml
>
>
> As a first check. See if you have that file
>
>
> Cheers
>
> Martin
>
> ------------------------------
>
> *From:* gstreamer-devel <gstreamer-devel-bounces at lists.freedesktop.org>
> on behalf of Timm Murray <tmurray at wumpus-cave.net>
> *Sent:* Tuesday, September 11, 2018 12:06 AM
> *To:* Discussion of the development of and with GStreamer
> *Subject:* No Facial Detection Ubuntu 18.04
>
> I'm using the following pipeline for facial detection:
>
> gst-launch-1.0 v4l2src device=/dev/video0 \
>    ! 'video/x-raw,width=640,height=480' \
>    ! videoconvert \
>    ! facedetect \
>    ! videoconvert \
>    ! xvimagesink
>
> This should display the video stream from my web cam to a window, with
> faces highlighted.  It does show the stream, but it's not drawing boxes
> around the faces.
>
> I think something with my environment might be messed up, as the same
> pipeline had worked for me in the past.  Just not sure where to start
> looking.  This is on Ubuntu 18.04, GStreamer 1.14.1, and OpenCV 3.2.0.
>
> Thanks,
> Timm
>
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>
>
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