User Guide

Corel Painter 411
In the preview window, the image
appears in 256 colors.
5 Change the number of colors to
128.
In the preview window, the image
appears in 128 colors.
6 Continue reducing the number of
colors in the graphic until you find
the minimum number of colors
necessary for adequate display on
your Web page.
7 Choose Quantize to Nearest Color
if you want Corel Painter to look at
each pixel and pick the nearest
color. Choose Dither Colors if you
want Corel Painter to apply a
pattern to the colors chosen to
generate a more accurate, less
banded result.
You can now either save the
graphic element to place on the
web page or return to Corel
Painter to work on the design and
color balance.
Note
•
The RIFF format contains data about
your image that is lost when you convert it
to GIF. If you want to edit the file later,
save a RIFF copy before you generate a
GIF version.
Using Web-Safe Colors
Using a Web-safe color table becomes
important when you expect to deliver
your Web page to viewers who use
monitors displaying 256 or fewer
colors. On such a monitor, Web
browsers dither colors that aren’t
found in the Web-safe palette. So,
depending on your audience, making
sure that some or all of your image
conforms to the Web-safe palette can
make good sense.
The colors in the default palette
included with Corel Painter are the
same 216 colors present in the
Netscape browser-safe palette.
Included with Corel Painter are Web-
safe color palettes that identify colors
by a hex value displayed immediately
under each color chip—values used in
HTML code to identify a color.
To select a Web-safe color palette:
1 Click the palette menu arrow on
the Color Sets palette, and choose
Open Color Set.
2 In the Select Color Set dialog box,
select the Hexadecimal folder
within the Color Sets folder.
3 Choose a hex file from the list, and
click Open.
The selected color palette displays
on the Color Sets palette.
Working with Posterize Using
Color Set
You can use the Posterize Using Color
Set option to force your image to use
the default color set. Posterize Using
Color Set can help make colors in
your resulting image ready for
delivery to the Web — without a lot of
dithering or shifting of colors.
Posterizing means adjusting the
number of color levels an image
contains. Corel Painter can
automatically constrain all the colors
in your image to a web-safe, 216-color
palette. Although the Posterize Using
Color Set option is not designed to be