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Corleone88
Joined: 09 Dec 2006
Posts: 474
Location: France
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| Posted: Tue Oct 07, 2008 9:33 pm Post subject: Colours adjustement on BG808 |
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Hi,
I recently bought a set of HD-144 and the Joust adaptater kit. I am very pleased with it except that the colours balance doesn't seem right anymore. The picture has too much red, I think. Except the change of colour temperature in the Barco menu, I don't know where I can change the levels of red, blue and green more accurately and separately.
I have a HTPC with Powerstrip and ZoomPlayer (Dscaler+ ffdshow). When I try to change the gamma of the red with Powerstrip, the whole PC picture is changed except the picture of the movie played by ZoomPlayer  .
I read stuff about cutoffs values but I don't know what it is and where it is in the Barco menu.
Do I need to change the G2 values ?
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Person99
Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX
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| Posted: Tue Oct 07, 2008 10:08 pm Post subject: |
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gain and cutoff are in the color adjust menu if memory serves.
gain is the basically the amount of that color in white, cutoff is basically the amount of that color in just above black.
G2 would not be redone on an 808 because you don't do it based upon the light output at the screen but based upon an internal circuit (i.e. that little LED does not know you put on filtered lenses).
_________________
Dave
A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
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Corleone88
Joined: 09 Dec 2006
Posts: 474
Location: France
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| Posted: Wed Oct 08, 2008 6:37 am Post subject: |
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OK thanks, but how do you change red, blue and green levels through these cutoff and gain values ?
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Person99
Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX
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| Posted: Wed Oct 08, 2008 2:20 pm Post subject: |
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| Corleone88 wrote: | | OK thanks, but how do you change red, blue and green levels through these cutoff and gain values ? |
I don't understand the question, could you clarify.
_________________
Dave
A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Wed Oct 08, 2008 4:03 pm Post subject: |
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Enter the adjustment menu on your 808
Select random access
Then picture tuning
Then color balance
Now cursor down to custom White and custom Black levels
Hit enter on custom White and Black balance and write down your settings levels for future reference.
In the custom white and black balance menu you can adjust Red and Blue light output relative to Green with Green being a constant.
Also read Kals thread.
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Corleone88
Joined: 09 Dec 2006
Posts: 474
Location: France
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| Posted: Thu Oct 09, 2008 6:37 am Post subject: |
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Ok Thanks a lot 
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Thu Oct 09, 2008 6:53 am Post subject: |
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The Red and Green filters in the HD-144's really throw the balance off but I think you will like what you see when you get the color balance correct 
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