The rest of the selection tools

• The Masks Panel
  • Relatively new way in Photoshop to work with selections as "masks" which can be edited without damaging the original image.
• Magnetic lasso
  • Click once to establish a starting point, then release. Follow an edge with the mouse to create a selection edge.
  • Drop points where you want to make sure the selection edge will stick. This is called a "Fastening Point"
  • The control panel at the top of the screen offers various settings
  • Shortcut keys:
    • Option - subtract from selection
    • Control - popup menu of options
    • Delete - deletes last fastening point. Goes back one point each time it's hit.
  • Complete the selection by
    • Clicking on the starting point
    • Double-clicking
    • Hit Return or Enter
• Quick selection
  • Click in an area then drag to expand the selection
• Magic wand
  • Selects similar colors
• Quick Mask: The mask panel is much more flexible...
• The Mask Panel
  • A good video from Adobe
• Filter: Extract - no longer available : (
• The Path Tool
  • Possible the best method for lots of selections
  • An Introduction to Bezier Curves

• Anti-Aliasing Reviewed
• Alpha Channels Reviewed

• jpg (Joint Photographic Experts Group)
• 16.7 million colors (24bit)
• Variable compression
• Lossy compression
• png (Portable Network Graphics)
• 16.7 million colors + alpha channel transparency
• Not patented like gif
• gif (Graphical Interchange Format)
• Proprietary
• Built-in single type of compression
• Lossless
• Supports transparency (but not alpha channel)
• Max 256 colors
• Animations
• Photoshop export options

• Assignment 2: Pick A Theme, due next Tuesday