Corel PaintShop Pro X7, DE User's Guide Page 659

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Working with advanced color features 655
three channels: hue, saturation, and lightness. Although you cannot
create or edit an image using the CMYK model, you can still split the
image into four channels: cyan, magenta, yellow, and black.
You can create a new grayscale image for each color channel; the
original image is not affected. For example, an HSL image is split into
separate grayscale images named “Hue,” “Saturation,” and
“Lightness.” Each grayscale image represents the percentage and
location of a color (such as red) or a characteristic (such as lightness)
within the image.
You can edit the grayscale images and use them to create interesting
effects or masks. You can then combine them again. If you split an
image into CMYK channels, you can then send the four grayscale
images to a printing service. You can also print CMYK separations
directly.
You can split images into RGB, HSL, or CMYK color channels regardless
of the type of color model (RGB or HSL) you choose as a display
preference.
Color channels give you increased image-editing options. You can
create a color shift by splitting an image into HSL channels, modifying
the Hue channel, then combining the channels. You can also use a
channel grayscale to create a selection.
To split an image into color channels
Edit workspace
1 Choose Image Split Channel, and choose one of the following:
• Split to RGB
• Split to HSL
• Split to CMYK
A new grayscale image opens for each color channel.
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