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Masking

In Corel PHOTO-PAINT, you can use masks to isolate areas in an image for editing while protecting the remaining areas from change. With their combination of editable and protected areas, masks let you modify images with precision.

In this section you’ll learn about

• distinguishing protected and editable areas

• defining editable areas

•defining editable areas by using color information

• inverting and removing masks

• cutting out images

For information about clip masks, see “Using clip masks to change object transparency”in the Help.

Distinguishing protected and editable areas

You can use masks for advanced image editing. Masks function like a stencil placed over an image: protected areas, paint and effects are not applied to the underlying image, whereas in editable areas, paint and effects are applied to the image. When you define an editable area for an image, you also define a corresponding mask, or protected area, for the same image.

Mask overlay

By default, a mask overlay appears only over protected areas to make it easy to differentiate between protected and editable areas. The mask overlay is a red-tinted, transparent sheet. If you adjust the transparency  of a mask in certain areas, the degree of red displayed by the mask overlay in those areas varies accordingly.

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You can hide the mask overlay.

Mask marquee

The border separating an editable area and its corresponding protected area is indicated by a dashed outline, called the mask marquee. You can display the mask marquee only after hiding the mask overlay. You can change the color of the mask marquee so that it can be seen clearly against an image’s colors.

To display or hide the mask overlay

• Click Mask ` Mask overlay.
A check mark beside the menu command indicates that the mask overlay is visible.

To display or hide the mask marquee

• Click Mask ` Marquee visible.
A check mark beside the menu command indicates that the marquee  is visible.

The mask marquee does not appear when you use a mask overlay or when you are adjusting the transparency  of a mask.

Defining editable areas

There are a number  of ways to define an editable area in an image without using color information from the image.

Editable areas defined by using text, objects, or the Clipboard contents

You can define an editable area by using objects. When you create an editable area that has the shape of one or more objects, you have to move the objects away from the editable area before editing it.

You can define an editable area by using text. The editable area created when you type has the font and style characteristics you specify. You can also create an editable area from existing text.

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You can define an editable area by pasting information from the Clipboard into the image window as an editable area. The area you create is a floating editable area, which you can edit and move without changing the underlying image pixels.