Corel Painter X3 Win/Mac, EDU, EN Guía de usuario Pagina 871

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848 Corel Painter X3 Getting Started Guide
3 Choose a hex file from the list, and click Open.
The selected color palette displays in the Color Sets panel.
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 a highly
sophisticated method of reducing color (it offers you no control over exactly how color
reduction is performed), Posterize Using Color Set can be a real time-saver.
In addition, you can constrain the colors you use to the default or another Corel Painter
web-safe palette, utilize new web-safe single color brushes and keep the number of
colors in your image to a minimum.
It’s important to note that exporting to GIF format can compromise the color set values
used when Posterize Using Color Set has been performed. For best results in those
cases:
First, save your reduced-color image in a 24-bit format, like Windows Bitmap,
TIFF, or PICT. This maintains the benefits of defining web-safe colors in
Corel Painter.
Next, open the image in a tool that supports indexed color to save the GIF — one
that offers “constrain to color set” features.
Finally, save the image to GIF format. The web-safe colors from Corel Painter are
maintained and your image is ready to go right on the web.
To use posterize using color set to adjust color levels
1 Select an area of your image you want affected or select nothing if you want the
entire image affected.
2 Make sure the proper color set is active.
3 Select Effects Tonal Control Posterize Using Color Set.
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