1. Three basic grouping
1.1. Public domain images
1.1.1. free for download
1.2. Royalty-free images
1.2.1. can reuse many time
1.3. Right-managed images
1.3.1. Term and condition
2. Images editing
2.1. Enhance and make composite
2.2. Alter and distort images
2.3. Add and delete element
2.4. Morph
3. Vector-drwan images
3.1. Using mathemathical formula, animation,size very small
3.2. Cannot be use for photorealistic images
3.3. require a plug-in for web-based
3.4. not easily scalable and resizable
3.5. can be converted to vector images
3.6. Cannot have texture,can only have plain colors
4. 3-D drawing
4.1. 3-D animaton tools
4.1.1. DAZ3D
4.1.2. FORMZ
4.1.3. Autodesk's MAya
4.1.4. Newtek's Lghtware
4.1.5. Trimble's Sketchup
4.2. Features of a 3-D application
4.2.1. Modeling
4.2.1.1. model the object cut
4.2.2. Extrusion
4.2.2.1. Extend the shape
4.2.3. Lathing
4.2.3.1. rotated around a defined axis
4.3. Panoramas
4.4. Texture
5. Natural light and color
5.1. Additive color
5.1.1. red,green,and blue (RGB)
5.2. Subtractive color
5.2.1. Create by combine color
5.2.2. Printing
5.3. Color models
5.3.1. RGB model
5.3.1.1. smartphone screen
5.3.2. HSB and HSI
5.3.2.1. Controlcolor
5.3.3. CMYK, CIE, YIQ, YUV, YCC
5.3.3.1. Subtractive model
5.3.4. Color palattes
5.3.4.1. Change the color of text
5.4. Dithering
5.4.1. Digitised images are 24bit,16million color depth
5.4.2. less than 16 million color,the image must be transformed for display
6. Two ways
6.1. Bitmaps
6.1.1. a comination block of different pixels
6.1.2. simple matrix
6.1.3. color resolution
6.1.4. Creation
6.1.4.1. Photo-realistic images
6.1.4.2. Complex drawings requiring fine detail
6.1.4.3. Support different shape color
6.2. Vector-drawn graphics
6.2.1. Applications of vector-drawn object
6.2.2. How vector-drawn images work
6.2.3. Vector-drawn images versus bitmaps