Epson Photo Plus - PhotoPlus Color Photo Scanner User's Guide download pdf (Page 53)

Layers and Masks 41

To set a layer's opacity:

Select the layer in the Layers tab and adjust the Opacity setting at the top of

the tab—either enter a percentage Opacity value directly or use the slider

(click the option's right arrow button).

To read the opacity values of pixels on the active layer:

1. Select the Color Pickup Tool from the Tools toolbar and move it

around the image.

2. Read the value shown for "O" (Opacity) on the Hintline (e.g., O:40%).

The readout updates constantly, showing the opacity value of each pixel

under the cursor.

For more useful hints and tips about using opacity, see PhotoPlus help.

Using depth maps

Depth maps let you add remarkable 3D realism to ordinary images. A standard

"flat" image, of course, has only two dimensions: X and Y, or width and height.

Adding a depth map to a layer gives you an extra channel that stores

information for a third (Z-axis or depth) dimension, in effect adding "volume" to

the image. It's as if the original image acquires a surface with peaks and valleys—

and you can play with the elevation of the landscape to achieve different visual

results.

The example opposite was created simply by painting

in white (on a green background) with a fuzzy brush

on the depth map.

Changes on the "map" layer produce the effect of highs

and lows in the "surface"... it's like using a 3D brush!

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Epson Photo Plus - PhotoPlus Color Photo Scanner User's Guide Page 53