Current Timeframe Course Overview

R. Craig Collins > intro to Computer Graphics > Overview 4

Overview 4 © R. Craig Collins, 2005/11

Items that should be accomplished before the beginning of the current time frame:
• Submitted Lab 1

Reminder: Did you check your TC WebMail? Did you check the Quarantine folder?
Did you check the D2L Dropbox, to View feedback? Did you check D2L Grades for feedback? (You may have to scroll down)

Items to accomplish during the current course time frame:

• to Wikipedia's discussion on gif

•Read\Review (These links take you to the same information that is in the pdf book.)

Vector, shapes that can be manipulated, such as in an inkscape svg file.
Raster, similar to dots of color on a paper... Paint makes raster files.
While paint can save as it's native .bmp format, it can save into other raster formats, such as gif, tiff, png, and jpg (also known as jpeg)
All but gif are suitable for photographs, but gif has a couple of tricks worth mentioning.
   • gif
   • Compression

   • Note: to play an animated gif, you may have to right click the file, and choose Open With... and choose your web browser

Notes:
bmp is capable of high color; from monochrome 2 bit (black or white) all the way up to 16 bit (`65000 colors) to 24 bit (16.7 million shades),
but as you have seen, bmp is a low resolution format (Paint can do between 72 and 96 dpi)

gif , like bmp, is a low resolution format, but is limited to no more than 256 colors

We will shortly see that tiff, png, and jpeg have to be high resolution and high color, if they are going to do a good job on photos.

•Activities

The key to this activity is to make a high color bitmap, then save that starting image in several different formats...
You should note how the colors and file sizes change each time you save your starting 24 bit bitmap into lower color bitmaps, low color gif, and high color tiff.

•Lab 2 (link to beginning of lab)

•Begin creating and testing Lab 2 (link to graphic construction requirements)
(You will later transfer this information into a D2L dropbox)

•Answer questions concerning topics covered in Lab 2
(You will later transfer this information into a D2L quiz)

     • Optional: Open/save an Acrobat pdf document to help with documentation and questions
       (get Adobe Acrobat Reader free, here)
     • Optional: Right click/save a Word doc document to help with documentation and questions
     • Optional: Right click/save a Rich Text rtf document to help with documentation and questions
   •Complete Lab 2 and verify your image matches the web page version
   (You will later transfer this information into a D2L dropbox)

•Submit by 11:59 am, Friday, of the current week (see due dates)
   • Lab 2 as directed

   • MUD 4 (My Understanding, Details) Respond
      What topics, if any, during this time frame do you feel very comfortable with? Why?
      What topics, if any, during this time frame do you not feel comfortable with?
   • Participation Discussion 4 Respond in the class D2L Discussion forum to the following:
      What is gif best suited for?
• Using D2L Discussions    • Using D2L dropbox       • Using D2L Quizzes      • Logon to D2L

              •You may click on Discussions, Dropbox, or Quizzes below, for more info
D2L navigation

• to Checklist

For the next time frame:
•Read Animation, Intro to GIMP, From On-line book: GIMP Basics, gif transparency, Saving gif using GIMP
•Each test has a review; you may wish to write out pertinent information from the readings and activities
•After completing this overview, you may wish to start on the next Overview 5 material, and preview Lab 3

Checklist
Did you:
• read gif
• read Compression
•Experiment with the software, so you can identify tools and answer usage questions in Lab 2
•Did the activity for Lab 2
•Submit Lab 2 in Desire2Learn (D2L)
•Take the Lab 2 quiz in Desire2Learn (D2L)
•Reply to Participation Discussion Topic 4 and MUD 4 in Desire2Learn (D2L)
to Overview 4