Barco IMAGETILE, Системное руководство

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System manual ImageTile 82
index 10 to 245 contain the missing gray values so that the palette
has the full 256 gray values within it.
Please note that dithering is not permitted while in this mode. The
Enable Dithering check box will be grayed-out, and dithering will be
automatically disabled regardless of whether this check box is
checked. This complies with the Windows standard interface method.
If you are unsure whether or not your application requires this “Static
Gray Palette including Standard System Colors” mode, contact your
application provider.
Static Gray Palette with NO system colors
This option sets the palette to be a static linear ramp of 256 shades of
gray. Therefore, applications are denied the ability to dynamically
change or allocate palette entries. This prevents palette conflicts
between applications, which can cause image color values to appear
distorted in the background application.
As shown in the picture below, each of the 256 entries in the palette
has an RGB value of (i, i, i) where i is the index from 0 to 255.
If you wish to use a static gray palette we recommend using the
“Static Gray Palette including Standard System Colors” option instead
of this one. This is due to the fact that some applications assume that
the first and last 10 entries of the palette are the standard system
colors. In this palette mode, these entries are made up from entries in
the bottom or the top of the gray ramp. Please note that dithering is
not permitted while in this mode. The Enable Dithering check box will
be grayed-out, and dithering will be automatically disabled regardless
of whether this check box is checked. This complies with the
Windows standard interface method. If you are unsure whether or not
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