[mythtv-users] remove channel logo?

Marco Nelissen marcone at xs4all.nl
Wed May 10 11:54:25 EDT 2006


>On Wed, May 10, 2006 at 07:55:24AM -0700, Marco Nelissen wrote:
>> Is it possible to have mythtv remove (or suppress as much as possible)
>> the channel-logo during playback? Seems like an obvious thing to do
>> (especially since there is apparently already code to recognize the
>> channel logo for commercial detection purposes), but I couldn't find
>> any option for it.
>
>Since the pixels of the 'bug' *replace* whatever pixels were behind
>them when the bug is keyed in, what would you replace those pixels
>*with*?

Depends on the channel. On some channels the logo is translucent, and
you could make it mostly go away by adjusting the brightness of each
pixel accordingly to get back to something closely resembling what
was there before the logo got blended in. For solid logos you would
have to copy adjacent pixels, which would work pretty well since most
solid logos only trace a thin outline.

>That is: doing this 'right' is somewhere between "highly non-trivial"
>and "non-trivial in the extreme"...

Note that I said "or suppress as much as possible". I don't expect
perfect results, but the logos could certainly be made a lot less
intrusive, and in *some* cases I suspect they could be made near
invisible.



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