Ian Trider wrote:
Sorry for failing to be totally clear. What I was implying was that
you should use Video Essentials with your DVD player connected
straight to the TV to calibrate the TV's colour (again, assuming the
DVD player isn't stupid and putting out bad colour),
yeah.. that's what I do.
and then connect
the DVD player to the capture card, and capture a test image, load it
into a photo-editing program (like GIMP), and use the eyedropper to
verify the values are right (I don't know if gimp will show you the
numbers the right way; the colour bars on the DVD are probably
described as being 75% saturated red/green/blue, or W/E -- I have
Avia. Check the description so you know what you should be looking
for).
good idea.
But, doesn't this just test the capture ability of the card?
Furthermore, I would expect that a capture via composite and then via RF
would show differences.
Wouldn't you also need to calibrate the output of the card with images
that are known to be correct?
If true, how does one calibrate the input and also the output of video
cards?
Once you know your capture card is good (because they are MISERABLY
calibrated, especially bt878's), you can output that captured test
image that you know to be captured in proper calibration to the TV.
Adjust the video card's colour/brightness settings until the image
displays (on the TV, which we know to be properly calibrated because
we did it earlier) the way it aught to.
good idea. thanks
After you've taken all the time to do that, everything should be
decently calibrated (or at least, as best as possible when going by
eye).
:)
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