ACE Selections and Compositing 2

Question 1

Which blending mode in the Layer Style dialog makes white pixels transparent while preserving dark tones, useful for compositing smoke or fire?

Accepted Answer

Screen

Answer

Multiply

Answer

Overlay

Answer

Luminosity

Question 2

When using the Polygonal Lasso tool, how do you close a selection without clicking exactly on the starting point?

Accepted Answer

Double-click

Answer

Press Shift+Enter

Answer

Press Ctrl/Cmd+D

Answer

Right-click and choose Close

Question 3

What does the 'Decontaminate Colors' option in Refine Edge/Select and Mask do?

Accepted Answer

Replaces fringe pixels with colors from nearby edge pixels

Answer

Removes color casts from the entire image

Answer

Converts the selection to a grayscale mask

Answer

Neutralizes the background color before extraction

Question 4

In the Channels panel, what is the quickest way to load a saved alpha channel as an active selection?

Accepted Answer

Ctrl/Cmd+click the alpha channel thumbnail

Answer

Drag the alpha channel onto the canvas

Answer

Double-click the alpha channel

Answer

Right-click the alpha channel and choose Load Selection

Question 5

What is the effect of holding Alt/Option while clicking a layer mask thumbnail in the Layers panel?

Accepted Answer

Displays the mask as a grayscale image on the canvas

Answer

Deletes the layer mask

Answer

Toggles the mask on and off

Answer

Inverts the mask

Question 6

Which Select menu command lets you select all pixels on the current layer that fall within a specific color range?

Accepted Answer

Select > Color Range

Answer

Select > Focus Area

Answer

Select > Similar

Answer

Select > Grow

Question 7

When compositing a subject shot on a green screen, which Photoshop feature is specifically designed to remove color spill from the subject's edges?

Accepted Answer

Decontaminate Colors in Select and Mask

Answer

Hue/Saturation adjustment clipped to the subject layer

Answer

The Sponge tool set to Desaturate

Answer

Remove Background in the Properties panel