Epson Photo Plus - PhotoPlus Color Photo Scanner User's Guide download pdf (Page 60)

48 Layers and Masks

A click on this button will unlink the layer and mask, changing the button to

display a red cross through it; you can also right click the mask preview

thumbnail to link/unlink. By selecting the layer or mask thumbnail, you can

then drag the layer or mask on the page, respectively. After fine-tuning, click the

button to relink the mask to the layer.

Masks and selections

Suffice it to say that a selection, which lets you isolate specific parts of the active

layer, often makes an ideal basis for a mask. Once you've created, modified, and

manipulated a selection, it's easy to turn it into a mask.

To create a mask from a selection:

1. Choose Mask>Add Mask from the Layers menu. Remember you can't

create a mask on a background layer!

2. To create a mask revealing the selected region, choose Reveal Selection

from the submenu. Pixels outside the selection will be 100% masked.

To create a mask hiding the selected region, choose Hide Selection from

the submenu. Pixels outside the selection will be revealed.

You can also select part of an image to create a custom brush shape, for example

a textured brush or special shape.

Conversely, you can create a selection directly from the mask. Within the

resulting selection, pixels that are lighter on the mask (conferring more opacity)

become relatively more selected. This correlates with Paint to Select mode (see

p. 99), where painting in lighter tones also confers "selectedness."

To create a selection from a mask:

Ctrl-click on the layer’s mask thumbnail, or select the mask preview

thumbnail and choose Create from Mask from the Select menu.

In the selection that results, darker areas on the mask become relatively less

selected than lighter areas, i.e. more protected from changes.

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Epson Photo Plus - PhotoPlus Color Photo Scanner User's Guide Page 60