Part 1, Activity (40%):
You may download an acrobat or word processing document to help you with this.

 • Copy your lab1 folder, and call the copy lab4

 •NOTE:
    •See Saving gif using GIMP, Preview of lab 4, (transparency)
    •See a video in Like Lab 4.

1. Open the image, ball.bmp, using the GIMP software
2. Choose the 'Select contiguous regions' tool, and click the blue background.
This selects the area that we want to eventually tell the computer to ignore, allowing transparency.
3. Right click the selected blue area, then choose Layer\Transparency\Add Alpha Channel.
(You can also select the Layer menu, then choose Transparency\Add Alpha Channel)
4. Select the Eraser tool, which can now be used to erase the blue, leaving the gray checkerboard that indicates transparency
5. Now to save the file, using File\Save As...
6. Choose the gif file type, and name the file lab4.gif
7. The GIMP software warns that the file must be exported, a step to convert the information to meet the 256 color limit
8. You may leave a comment, this will not display.

 • Zip the lab4 folder, rename it to yourname-lab4.zip and submit in the D2L Lab 4 dropbox
 

Part 2: Hands On (60%): Be prepared to discuss/demonstrate new tools and concepts used in this lab.

You may download an acrobat or word processing document to help you with this.

At the end of this process, you will be turning in answers using the Quizzes area of Desire2Learn, based on the following questions. So, to get the best score, fill in all the answers in this document first.

Answer the following questions

• The GIMP when started opens ____ window(s).
  a) 1
  b) 2
  c) 3
  d) 256
  
  
• True or False
  When you use the GIMP window to open a file, the image opens in a new window
  a) true
  b) false
  
  
• Match the commands with menu the command is found on in the GIMP
  

  Edit menu	Select\None command
  File menu	Copy command
  Image menu	brightness-contrast command
  Select menu	Save As command
  Tools menu	Image Crop command

  
  
• On TV, the weather person used a process called ________ to appear to stand in front of a map
  a) alpha channel
  b) animation
  c) chroma key
  d) layers
  
  
• in gif files, the hiding of an area or color, using a(n) ________ , can create transparency
  a) alpha channel
  b) animation
  c) chroma key
  d) layers
  
  
• Another method that can create transparency is to add the equivalent of clear plastic over the image, these clear sheets are called
  a) alpha channels
  b) animations
  c) chroma keys
  d) layers