chapter 3
Mask
Used to selectively show or hide portions of a layer or protect areas from editing?
Aliased
A hard edge?
camera resolution
The number of pixels per inch a camera can access to recreate an image?
Resolution
The number of pixels per square inch in a digital image?
Rotating
Moving an object clockwise or counterclockwise around a center point?
Layer
The fundamental building block, a section of a Photoshop document manipulated independently?
grayscale image
A single-color image, normally referred to as black and white?
pixels
The smallest component that makes up a digital image?
Algorithm
An ordered set of instructions to process data in a certain way?
Flipping
Creating a mirror image of artwork by turning it horizontally or vertically?
Background layer
The initial, flat, single layer of an image?
anti-aliased
A crisp but smooth edge?
Digital Image
A picture in electronic form?
Composite image
An image that brings together many different images to create one new image?
Transform
Change the shape, size, perspective, or rotation of an object or image?
Layer Mask/Pixel Mask
Resolution-dependent masks created with painting or selection tools?
edge
The outline of a selection. The area of an image where highly contrasting pixels meet?
Image resolution
The number of pixels per inch in an image file?
Opacity
Determines the percentage of transparency; the lower the opacity, the more transparent it is?
point of origin
The point from which a transformation occurs?
Vector Mask
Resolution-independent masks created with the Pen or Shape tools?
feathered edge
A blended edge?
Guides
are nonprinting horizontal and vertical lines that you can display on top of an image to help you position a selection?
Bounding Box
A rectangle that surrounds an image and contains eight handles to click and drag in order to change the dimensions of the artwork?
Blending Modes
Defines how pixels on one layer interact with pixels on underlying layers?