edDV posted something about this. I believe he said that 16-235 is equivalent to 0 IRE - 100 IRE. 16/0 IRE is video black and 235/100 IRE is 100% luma. 0-15 is reserved for BTB (blacker than black) signals and 236-255 is for the luma clipping area above 100%.
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Also, I ran another test on the pics you posted on page 1 here.
I ran it through my color utiliy, and it reported the following
values (on a pixel point) on the Blacks:
B = Black color richness
color = black color range, where values fluctuated on a pixel
Gray = all the gray shades
test1.jpg - Luma (contrast) pattern from the original THX DVD test disc:
* B = 0 ---- (black color: 0=0)
* Gray = all are fluidly same color
* GrayColor first row blocks (253/245/239/235)
The Original VOB produced no change, and colors were fluid.
testG.jpg - Pioneer recording, input 0 IRE and VNR "off", Detail "off", etc.
* B = 0 ---- (black color: 0=0)
* Gray = all are fluidly same color, as above original vob
* GrayColor first row blocks (253/245/239/235) (just as above)
testE.jpg - Panasonic E55 recording, input "lighter" and NR "off":
* B = 1/2 -- (black color: 1=256/512/66048, 2=768/769, 3=1024/66562)
* GrayColor first row blocks (222-225/211-217/210-213/208-214)
testB.jpg - JVC DR-M10 recording:
* B = 0/1 -- (black color: 0=0, 1=65793)
* Gray = fluctuations of color (varied within 3 or 4 digits)
* GrayColor first row blocks (235-237/228-231/223-226/218-222)
the M10 only fluctuated between 0 and 1 color w/ color values above.
FWIW.. It seems to me, IMO, that the Pioneer 220-S is doing a fantastic job of
holding onto the color exactly (though based on gshelley61's pics on page one)
as with his Original VOB pic
I also think that it takes a working concerto to work out the final OUTput
of a given recording scenario. For instance, the dvd player being dvd recorded
from. Remember, that the dvd recorder hold a great part of the colors holding
or not holding onto the color accurately enough, and every dvd player brand's
IRE (and/or color range) will vary from one dvd player to the next.
-vhelp 3232 -
Originally Posted by gshelley61
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Originally Posted by sync
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Originally Posted by gshelley61
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In the case of live TV, if you basically adjust the image for the particular network/channel you intend to record from, that should be adequate. Although there are some variations from program to program, they are usually pretty mild since the broadcasters employ all kinds of gear to standardize their output signal.
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Originally Posted by gshelley61
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