Ok , I have made S-video to RCA composite video cable (yellow plug) .
The signals are both analog and mostly the same. And it works fine.
This thread talks about that if your interested
http://forum.allaboutcircuits.com/showthread.php?p=207032#post207032
What I am wondering now is can a cable be made as simple as the one for S-video to RCA composite that I made.... but for VGA to RCA component (GRB phono plugs).
From my understanding their both analog video signals and VGA uses RGB and component RCA uses something close to RGB uses L = Luminancence , L - Red , L - Blue ????
I also plugged the composite RCA video (yellow plug) into the component videos Green plug and I could get a black and white picture to display on the screen but when I plugged the yellow plug into the red or blue video rca component plugs I got no signal. I am wondering why composite yellow video output source to rca component green input source gives you a black and white clear image but why the other plugs of component won't?
Is this something to do with Yellow carriering luminanceness and chromatic info and component being broken into luminance = L
U = L - R
V = L - B
Either way the main question is can you directly make a VGA to RCA component cord. And if you can do this then you should beable to make a VGA to composite black and white image as well so you should beable to create a VGA to component or to black/white composite image.
Curious how to convert RGB to component signal LUV I know how to convert it thru software using a matrices ...etc (they show you it on the wikipedia how to do the conversion mathematically but to implement it in a circuit/hardware duno)
But how do you do the equivalent software matrix conversion in hardware?? Either way if I directly connected GRB to YUV then I should see some type of image because the only difference is that U = L - R
V = L - B seems to me I would get the opposite colors on the screen but their still should be an image....
Maybe the oppisite color space image or something
When I get a chance I will verify this or do some testing.
Wondering if anybody has done anything with this stuff before and knows the answers.
I guess the many issue of converting RGB into lumencence , L-R , L -B is how to obtain Green from L to obtain red , and blue it's just L - (L -R) , and L - (L-B) so to do this hardware wise it is just creating a difference circuit for the red and blue but to get the green duno.....
The signals are both analog and mostly the same. And it works fine.
This thread talks about that if your interested
http://forum.allaboutcircuits.com/showthread.php?p=207032#post207032
What I am wondering now is can a cable be made as simple as the one for S-video to RCA composite that I made.... but for VGA to RCA component (GRB phono plugs).
From my understanding their both analog video signals and VGA uses RGB and component RCA uses something close to RGB uses L = Luminancence , L - Red , L - Blue ????
I also plugged the composite RCA video (yellow plug) into the component videos Green plug and I could get a black and white picture to display on the screen but when I plugged the yellow plug into the red or blue video rca component plugs I got no signal. I am wondering why composite yellow video output source to rca component green input source gives you a black and white clear image but why the other plugs of component won't?
Is this something to do with Yellow carriering luminanceness and chromatic info and component being broken into luminance = L
U = L - R
V = L - B
Either way the main question is can you directly make a VGA to RCA component cord. And if you can do this then you should beable to make a VGA to composite black and white image as well so you should beable to create a VGA to component or to black/white composite image.
Curious how to convert RGB to component signal LUV I know how to convert it thru software using a matrices ...etc (they show you it on the wikipedia how to do the conversion mathematically but to implement it in a circuit/hardware duno)
But how do you do the equivalent software matrix conversion in hardware?? Either way if I directly connected GRB to YUV then I should see some type of image because the only difference is that U = L - R
V = L - B seems to me I would get the opposite colors on the screen but their still should be an image....
Maybe the oppisite color space image or something
When I get a chance I will verify this or do some testing.
Wondering if anybody has done anything with this stuff before and knows the answers.
I guess the many issue of converting RGB into lumencence , L-R , L -B is how to obtain Green from L to obtain red , and blue it's just L - (L -R) , and L - (L-B) so to do this hardware wise it is just creating a difference circuit for the red and blue but to get the green duno.....
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