[Bug 748994] videofilters: Add plugin for pseudo-color effect

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=748994

Jānis Šmēdiņš <janis.smedins at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |janis.smedins at gmail.com

--- Comment #3 from Jānis Šmēdiņš <janis.smedins at gmail.com> ---
Hey! Not bad, but there are a few things I'd mention.

Firstly, this is not strictly pseudo-color mapping, but rather "colorise"
effect. For pseudo-color effect the applied color (hue/value) should be
dependent on the value of input pixel (i.e., different colors for different
shades of grey).

Secondly, I believe processing in YUV colourspace would be more efficient, as 
grey plane (Y) can be retained unmodified, and colour planes (UV) can be simply
appended to the GstBuffer.

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