Graphics Software Software which is be used to create, edit, and manage 2D computer

graphics.

3D computer graphics (in contrast to 2D computer graphics) are graphics that use a three-dimensional representation of geometric data. The process of creating 3D computer graphics can be sequentially divided into three basic phases: 3D modeling which describes the process of forming the shape of an object, layout and animation which describes the motion and placement of objects within a scene, and 3D rendering which produces an image of an object.

What is Graphics Software Used For? Graphics software is used in many facets of life and business. Some of the

common things people use graphics software for include: editing and sharing digital photos, creating logos, drawing and modifying clip art, creating digital fine art, creating Web graphics, designing advertisements and product packaging, touching up scanned photos, and drawing maps or other diagrams.

Two Types of 2D Graphics

Bitmap : Bitmap images (also known as raster images) are made up of pixels in a grid. Pixels are picture elements; tiny dots of individual color that make up what you see on your screen. All these tiny dots of color come together to form the images you see.

Vector : Vector images are made up of many individual, scalable objects. These objects are defined by mathematical equations rather than pixels, so they always render at the highest quality. Objects may consist of lines, curves, and shapes with editable attributes such as color, fill, and outline.

An ILLUSTRATION is composed of vector  

OBJECTS each having one or more  

  PATHS which are composed of    

  LINE SEGMENTS having  

      ANCHOR POINTS at each end

Basics of Photoshop

Photoshop

Image Editing SoftwarePaintings & IllustrationsGraphic DesigningWeb Designing

Menu Bar contains all of Photoshop’s available optionsOptions Bar set the options for the currently selected tool

Toolbox has various tools for editing the image

Palettes various panes to control different aspects of the project. Includes layers,

channels, paths, history, etc.

Image Area the currently

open image(s)

Tools in the Toolbox

The Selection Tools allow you to use various techniques to select specific sections of an image, rather than the entiregraphic.

Tools in the Toolbox

The Enhancement Tools allow you to clone portions of animage, blur or enhance backgrounds, fill an area with aselected color, or further emphasize focal points.

Tools in the Toolbox

The Vector Tools allow users to create vector-based objects in Photoshop.

Tools in the Toolbox

By using the Navigation Tools, you can move to different sections of an image, or change magnification of the image. The Zoom Tool allows users to magnify and reduce areas of images. Click the Zoom Tool to zoom in (magnify); press the Alt key and click the Zoom Tool to zoom out. The Hand Tool allows users to slide the image around the Image Area in order to view different sections of the image.

Tools in the Toolbox

The Color Tools control the foreground and background colors. In this example, Black is the current foreground color and White is the background color. When used in conjuction with the Color Palette and the Swatches Palette, users can select from millions of different colors to use in their images.

Tools in the Toolbox

The Eyedropper Tool allows you to select a color from an existing image.

LayersLayers are like transparencies stacked one on top of one another. Each layer can have different images and effects. When the layers are stacked, the images appear as if they are all a single image.

Layer Pallet Options

This image acts as a show/hide feature for the corresponding layer.

• It shows the layer that is active, in other words, the layer which is currently editable.

• This links two layers together

• This creates a new layer

Opening New Image

Opening New Image

Setting Image size

Resolution is the number of pixels or dots per inch (ppi/dpi). The higher the resolution, the more detail is stored for the graphic. This means that a higher resolution image is higher quality, but also is a larger in size.

Setting Image size

Web Graphics 72 dpi

Low-end printing 150 dpi

Professional quality printing

300 dpi

Setting Image size

Once the Resolution is made lower

Cannot be revert

Common File Formats PSD (Photoshop Data) files preserve layer and channel

information, users can continually edit and adjust images using the PSD file.

JPEG (Joint Photographic Experts Group) Every time a JPEG file is saved, the file recompresses and make a lighter file size but losses quality.

TIFF (Tagged Image File Format) files are not compressed format and make larger file size. Widely used for printing/publication purposes.

GIF (CompuServe Graphic Interchange Format) files are most commonly used for Web-based line art such as logos and buttons since this format can only support a maximum of 256 colors and lighter in size.

BMP (Bitmap) files are mostly used in windows paint program.

File Formats

Vector formats include

• AI (Adobe Illustrator) • CDR (CorelDRAW) • CMX (Corel Exchange) • CGM Computer Graphics Metafile • DXF AutoCAD • WMF Windows Metafile

Vector drawing programs • Adobe Illustrator • CorelDRAW • Xara Xtreme • Serif DrawPlus

Bitmap formats include

• BMP • GIF • JPEG, JPG • PNG • PICT (Macintosh) • PCX • TIFF • PSD (Adobe Photoshop)

Bitmap editing programs

• Microsoft Paint • Adobe Photoshop • Corel Photo-Paint • Corel Paint Shop Pro • The GIMP