Color Models and Image Types

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Questions and Answers

Which color model is used by computer monitors?

RGB color model

Which color model is used for commercial printing of a magazine?

CMYK model

Describe gamut as it relates to color.

The spectrum of colors that a color model can produce.

What RGB color bit depth is needed to create 256 colors?

8 bit Signup and view all the answers

Describe how an alpha channel and masking relates to image transparency.

It varies in the opacity of the color. Signup and view all the answers

Which type of image is composed of lines, curves, and fills?

Vector images Signup and view all the answers

Describe bitmap tracing.

The process of converting a vector image into a raster image. Signup and view all the answers

Compare and contrast raster images with vector images.

Raster images are pixelated when zoomed in and have larger file sizes, while vector images are clearer and smaller. Signup and view all the answers

What are the two aspects of optimizing a raster image for use on a website or handheld device?

The most appropriate resolution and file compression. Signup and view all the answers

How can an uncompressed RAW image file type be obtained?

By downloading it from a digital SLR camera. Signup and view all the answers

Explain what happens when an image contains a color that is undefined in a web browser.

The image is dithered, creating a color through interpolation. Signup and view all the answers

If the resolution of an image is 72 dpi and the image is 8 inches wide by 10 inches tall, how many pixels wide is the image?

576 pixels Signup and view all the answers

Which bicubic resampling method is best if enlarging an image from 300 pixels wide to 800 pixels wide?

Bicubic for enlargement Signup and view all the answers

Describe the difference between a serif and sans serif font.

Serif fonts have decorative marks, while sans serif fonts are cleaner and more legible. Signup and view all the answers

Which font design is generally thought to instill trust in the reader?

Sans serif Signup and view all the answers

What are the 7 elements of design?

Line, shape, form, space, value, texture, color. Signup and view all the answers

What does the line element of an image describe?

A basic component of a shape with length, thickness, and direction. Signup and view all the answers

What do lines create?

Movement, directs focus, creates dimensional form. Signup and view all the answers

What does a shape define in an image?

A boundary that may be geometric, such as a circle or square. Signup and view all the answers

What does a shape create in an image?

Creates form, focus, and story. Signup and view all the answers

What is texture?

Used as a filling in shapes to imply what an object may feel like. Signup and view all the answers

What does texture create in an image?

A sensory experience such as touch, taste, mood, and emotion. Signup and view all the answers

Define color.

The idea that color can affect human thoughts and emotions. Signup and view all the answers

What is form?

An assembly of 2-dimensional shapes to represent a third dimension. Signup and view all the answers

Define value.

Uses light and dark to add highlights, shading, and shadows. Signup and view all the answers

Define space and give the two types of space in images.

The area or volume in a scene, positive space and negative space. Signup and view all the answers

What is the difference between positive space and negative space?

Positive space is the area occupied by the primary object, while negative space is the area around it. Signup and view all the answers

Study Notes

Color Models

The RGB (Red, Green, Blue) model is used by computer monitors.
CMYK (Cyan, Magenta, Yellow, Key/Black) model is for commercial printing, such as magazines.

Gamut and Color

Gamut refers to the range of colors a color model can produce.
The total spectrum varies based on the color model used.

RGB and Image Depth

An 8-bit RGB color depth can create 256 colors.

Image Transparency

An alpha channel controls color image transparency, varying opacity.

Image Types

Vector images consist of lines, curves, and fills, unlike raster images.
Raster images become pixelated when zoomed in and have larger file sizes.

Bitmap Tracing

Bitmap tracing converts a vector image into a raster image.

Image Optimization

Key aspects of optimizing a raster image include resolution and file compression.

RAW Image Files

Uncompressed RAW file types can be obtained by downloading from digital SLR cameras.

Undefined Colors

Undefined colors in a web browser result in dithering, creating new colors through interpolation.

Pixel Dimensions

An image measuring 72 dpi at 8 inches wide is 576 pixels wide.

Bicubic Resampling

Bicubic resampling is ideal for enlarging images, enhancing quality.

Fonts

Serif fonts are traditionally used in print for readability, while sans-serif fonts are cleaner and instill trust.
Serif fonts have decorative end points, while sans-serif fonts lack these features.

Elements of Design

The seven design elements are Line, Shape, Form, Space, Value, Texture, and Color.

Lines in Design

Lines are basic components of shapes, influencing length, thickness, and direction, and creating movement and focus.

Shapes in Design

Shapes define boundaries and can be geometric, creating form and stories in images.

Texture in Design

Texture implies how an object might feel and evokes sensory experiences like touch and taste.

Color and Emotion

Color influences human emotions and moods, being visually pleasing and creating comfort.

Form and Space

Form represents three-dimensional structures through two-dimensional shapes.
Space defines the area or volume within a scene, with positive space occupied by primary objects and negative space surrounding them.

Value in Design

Value is achieved through the use of light and dark to create highlights and shadows.

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Description

Explore the fundamentals of color models like RGB and CMYK, their usage in digital displays and printing. This quiz covers image types, optimization techniques, and transparency concepts in the context of graphic design and digital media.