lesson 2 & 6 computers quiz

definitions (6.1)

*Alpha Channel*: An extra channel added to an image; it stores selections as grayscale images. It can be added to create and store masks. *channel mask*: Restricts editing to a specific channel. They are useful for making intricate, fringed or wispy-edged selections. *vector mask*: Made up of vectors instead of pixels. Resolution-independent, these have crisp edges and are created with the pen or shape tools. They don't support transparency. *layer mask*: Similar to an alpha channel but is attached to a specific layer. It controls which part of a layer is revealed or hidden. It appears as a blank thumbnail next to the layer thumbnail in the layers pannel until you add content to it; a black outline indicates that it's selected. *clipping mask*: Applies to a layer. It confines the influence of an effect to specific layers rather than to everything below the layer in the stack. Thumbnails of these are indented with a right-angle arrow pointing to the layer below. The name of the affected layer is underlined.

colors impact on masks

*black*: Adds to the mask (more red) *white*: Subtracts from the mask (less red) *gray*: Adds semi-transparent areas to the mask (the darker the gray, the more transparent it is)

restoration methods

*spot healing brush*: Special paints and fine brushes used to manually "in-paint" damaged areas of a photograph. *clone tool*: Japanese papers and wheat-starch paste used to carefully repair and rebuild torn paper. *curves adjustment layer*: Washing or "light-bleaching" a photograph to remove discolored components

In the Structure menu scale, the number _____ represents the loosest adherence to the source structure, and the number _____ represents the strictest adherence

1, 7

An image that has 1 megapixel has how many pixels?

1,000,000

An image with a PPI value of more than ___ ppi is generally considered "high resolution".

200

How many channels can a single image contain?

56

What is not a type of mask?

A highly-editable restoration mask that can be used on numerous platforms.

When working in Quick Mask mode, how can you tell that an area has been masked off and protected from editing?

It is covered with a red overlay

color modes & and their uses

RGB: web and mobile device authoring CMYK: preparing an image for printing using process colors grayscale: black and white printing

Double clicking the Zoom tool in the Tools panel will do what?

Zoom the image to 100%

When you're satisfied with a mask preview, you can create the final output as what?

a selection, a layer mask, a new document, a layer with transparency

what should always be the first two tasks you complete when retouching a photo?

adjusting the resolution, duplicating the image

If you want your Clone Stamp tool to start from the same source point every time, then you need to deselect "_____".

aligned

_____ _____ are used to store selections as grayscale images

alpha channels

Hold down the _____ key and click on a Puppet Warp pin to remove it.

alt

In Windows, what key allows you to toggle between the Add and Subtract modes when using a selection tool?

alt

When using the Clone Stamp tool, you need to hold down the _____ key to start sampling a desired portion of the image.

alt

A key concept in masking is that _____ hides and _____ reveals.

black, white

A semitransparent "onion skin" overlay indicates masked areas. These are represented by what?

checkerboard pattern

The _____ _____ tool uses pixels from one area of an image to replace the pixels in another part of the image.

clone stamp

When using the Puppet Warp feature, pins are used for what?

control & restrict movement

Whe you select the Crop tool, crop handles appear, and a _____ _____ covers the area outside the cropping region, to help focus your attention on the cropped area.

crop shield

With any tool selected, you can press _____ and the plus sign (+) to zoom in.

ctrl

T or F: The Patch tool uses a scale that goes from 1-10 to determine how closely the patch will match the existing image.

false

T or F: The order in which you perform retouching tasks should always be the same, regardless of what kind of project it is.

false

T or F: You have to do all of your selecting inside Select and Mask.

fasle

What are good uses of the Clone Stamp tool?

filling in missing areas in damaged photography, removing unwanted objects from images

The _____ _____ tool works similarly to the Spot Healing Brush tool.

healing brush

what requires you to sample source pixels before retouching an area?

healing brush tool

When retouching an image, why should you get in the habit of making a copy of the original image file?

it makes it easy to recover the original image later if necessary

The _____ histogram in the Properties panel displays the range of dark and light values in the image.

levels

We use _____ to isolate and manipulate specific parts of an image

masks

You might want to adjust the color and tone in specific parts of the image in order to bring out highlights, _____, _____ and _____ colors.

midtones, shadows, desaturated

Deselect the "Delete Cropped Pixels" option if you want to crop _____.

nondestructively

What tools would be best to completely remove an unwanted element from an image (such as a stranger in your photo)?

patch tool

It might be wise to use Adobe Camera Raw instead of Photoshop when you are working with:

photos that are saved in camera raw format

When you edit an image in Photoshop for a specific use, you need to make sure the image contains an appropriate number of _____.

pixels

PPI stands for ________.

pixels per inch

The _____ _____ feature allows you to manipulate (move) areas of an image such as hair, an arm or neck tilt.

puppet warp

In the layers panel you are able to tell which layer is in Quick Mask mode by:

red highlight

The _____ _____ Brush can be used to improve the mask along edges containing complex transitions such as hair.

refine edge

In Photoshop, _____ means the number of pixels per unit of physical length.

resolution

The tools that are focused on creating and refining masks are collected in a task space called:

select and mask

When you exit quick mask mode, the mask is converted into a _____.

selection

The last task you want to do when retouching a photo is to _____ the image.

sharpen

What should usually be the final task when retouching an image?

sharpening the image

The _____ _____ filter gives you the most control when sharpening an image.

smart sharpen

The _____ menu determines how closely a patch reflects the existing image patterns.

structure

Dragging the Quick Selection tool in _____ mode tells Photoshop which areas should be masked and not visible.

subtract

The Spot Healing Brush tool samples pixels around the retouched area and matches the _____, _____, transparency and _____ of the sampled pixels to the sampled pixels to the pixels being healed.

texture, lighting, shading

The _____________ value determines how dissimilar the pixels should be before they are eliminated.

threshold

T or F: In Photoshop, the 100% view does not preview the image's PPI value (resolution).

true

T or F: In Quick Mask mode, you may only make changes to the unprotected area that is visible and selected?

true

T or F: The transparency of the "onion skin" can be adjusted.

true

T or F: When masking, the area that is not selected is protected from editing.

true

T or F: When using the Spot Healing Brush, if you want the best results, you should use it to cover a small area rather than a large area.

true