XX YY <f...@g...com> writes:

> http://www.bing.com/images/search?q=farbraum+aRGB&FO
RM=HDRSC2#view=detail&id=80D236EEED8493A487DAC58A9C3
9F5D0190567A5&selectedIndex=56
>
> szary - sRGB
> kolor - aRGB

No fajnie, ale co to właściwie jest?
Domyślam się tylko że na dole jest czerń, a na górze biel.
Kształt (rzutu, rzutów) tego obrazka nie wydaje się podobny do znanej
wszystkim podkowy. Spójrz może na trzeci obrazek.

Tłumacz google (oryginał z
http://www.picbits.de/Technik/Farbraum/Farbraeume_1.
html)
mówi tak:

Spatial
Color: Adobe RGB
gray : sRGB

Adobe RGB vs. sRGB with respect to the pressure, side 4
(tu raczej chodzi nie o ciśnienie, a o drukowanie).

Figure 8 shows the ananloge projection and rotation with the Adobe RGB color space
and the Baryta paper profile , as the Epson 3800 Pro might output :

Also top left here is to recognize : The shining , printable yellow grows out a
little from the Abobe RGB color space , but it's also good to see : There is only one
comparatively small tip that is not printable and also at the bottom right of the
small body, which almost looks like a spherical section : Green Blue colors that
would be printable, but not detected by the color space.

Concluding remarks : Especially in Adobe RGB can be seen that Adobe RGB can represent
colors that are not printable. These are for the most part more vibrant colors with
high luminance. Here simply clearly show the limits of paper as a medium. Paper is
not a light source, no self-luminous . It can only reflect ambient light. But the
comparisons on the last 4 pages clearly show that there certainly are printable
colors particularly in yellow and blue / green, which are bad and even by Adobe RGB
not completely enclosed by sRGB. I recommend everyone to icc - profiles his favorite
papers to get and then move times with this little freeware tool from Microsoft with
sRGB and Adobe RGB , these 3- D display in the room. For printing you should choose
as the working color space (at least) Adobe RGB . Better still, the color space of
ProPhoto RGB , which encloses ALL printable colors (as RAW photographer you this
option ) . Pro -Photo RGB is a security not to give through the choice of the working
color space to printable colors . Unfortunately, ProPhoto RGB is an unrealistically
large color space , so that distribute the 256 tones of 8bit over a relatively wide
color range . Therefore, you should always keep in Pro Photo RGB in 16 bit .

Note: For the pictures that you want to show on the internet , you should convert to
sRGB , as most browsers are not color management capable. Adobe RGB files would
generally identified by the " blind profile " Browser interpreted as sRGB files ,
resulting in flabby skin tones and lifeless yellow. Still catastrophic ProPhoto RGB
is reproduced from not color-aware programs. So who thinks that overwhelmed him the
topic and he generally only want to work with a color space that is generally
canceled (despite the task of qualitative benefits for the pressure) in sRGB better.

If one , however, has understood color management to deal with white and emphasis on
high print quality, then the correct working color space compared to sRGB can really
only Adobe RGB, or even better yet Pro Photo RGB ; because Caution : The road from
the larger to the smaller color space is always a one-way street ! If a picture once
profiled by Adobe RGB or Pro Photo RGB " down " according to sRGB , then brings the
convert back to Adobe RGB , the lost colors not go back.
--
Krzysztof Hałasa