[mythtv-users] Picture quality
Jeff Monks
mythtv at skunkeye.com
Wed Jun 25 17:09:46 EDT 2003
On Wed, 25 Jun 2003, guy bayes wrote:
> Hi all just wanted to post a general question about
> picture quality, color, brightness, etc with regards
> to MythTv/PVR-250.
>
> [...]
>
> Is this a video-out issue you think or an encoding
> issue you think? Anyone have any hints on how to
> spice up the color, etc? Does it do any good to mess
> with the color/contrast settings in the database? Any
> PVR settings?
I had a similar washed-out look to my recordings, and I fixed it (somewhat
- I will probably do some more tweaking, but it's *much* better now) by
playing with the brightness and contrast settings of the ivtv driver.
Use the test_ioctl program that comes with the driver to set the
parameters, something like:
test_ioctl -y brightness=132,contrast=75
You can also mess with the hue and saturation levels the same way.
"test_ioctl -h" will show you all the options you can change, as well as
the valid value ranges.
You can do this while watching a live recording and see the results almost
instantly.
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