CSC151 2007S, Class 21: Transforming Images

Admin:
* My kids have yet another delayed school start.  
  I hope Dr. Davis will be taking the class.  
  Otherwise, Max is in charge.
* I've received one general question on Assignment 5: 
  Q: In the questions where we render spots, do you care if the spots
    are clipped? (As in we can make the spot appear on the canvas,
    but part of it may be off the canvas without getting an error.)
  A: I do not care if the spots are clipped.  I care that you avoid the
    error message.  (I also care that you render spots/partial spots either
    in the correct location or not at all.  Moving everything to a valid
    location would be inappropriate.)
* I should be around this afternoon from 1:15-2:45 or so.  
* Tomorrow's reading: Building Images by Iterating Positions.

Overview:
* Review: Transforming colors.
* Transforming images by transforming each pixel.
* Sequencing transformations with compose.
* LAB