CSC 161 Module on Grouping Data and Image Processing with the Scribbler 2

Summary and Main Topics

This module introduces the customizable nature of self-written programs by using structs and 2-dimensional arrays, particularly emphasizing their uses with Myro Pictures.

1. Structs
2. Two Dimensional Arrays
3. Pixels
4. Pictures
5. Insertion Sort

Day-by-day Details

Day	Topic	Preparation	In-class	Due Date	Availability for Extra Credit
Tuesday, March 10	Grouping Data: Introduction	Examples reading King, Sections 16.1-16.2 K&R 6.1 - 6.2, 6.7 Examples from reading/preparation square-move-1.c square-move-2.c square-move-3.c square-move-4.c square-move-5.c	lab exercise
Wednesday, March 11	Grouping Data: Structs	Examples reading King, Sections 16.1-16.2 K&R 6.1 - 6.2, 6.7 Examples from reading/preparation square-move-1.c square-move-2.c square-move-3.c square-move-4.c square-move-5.c Examples for this lab test-scores-1.c test-scores-2.c test-scores-3.c	lab exercise
Friday, March 13	Grouping Data: 2-dimensional arrays	King, Section 8.2 K&R 5.7, 6.3 - 6.4 city-precipitation.c 2D-array.c	lab exercise
Spring Break
Monday, March 30	Transforming an Image	picture-splice.c 2D-array-with-proc.c 2D-array.c	lab exercise		Monday, April 13
Tuesday, March 31	Insertion Sort	Insertion Sort Reading insertion-sort-proc1.c insertion-sort-proc2.c insertion-sort-proc3.c 2D-1D-array.c insertion-sort-picture.c	lab exercise
Wednesday, April 1	Module Project		project	Tuesday, April 7
Friday, April 3	Supplemental Problem 3		Supplemental Problem 3 (done individually)	Friday, April 3

Project: Picture Suite

For this project, you will write the following series of functions which modify a picture. For each function, the address of a picture is passed as a parameter, so the picture passed into the function (e.g., from main) will be changed.

• void pixelStrip (Picture * pic, char color)

  This function should set the R, G, or B value of every pixel in the picture to 0 (depending on what char color is).
  For example if parameter color is 'G', then this procedure should change the 'G' component of each pixel in the picture to 0; the 'R' and 'B' components would remain unchanged.

• void pictureRedder (Picture * pic)
  void pictureGreener (Picture * pic)
  void pictureBluer (Picture * pic)

  These functions should increase the intensity of their respective colors (red, green, or blue). This increase should never go past 255. The color should increase less when it is already high than when it is low.

• void circleSelect (Picture * pic, int xCenter, int yCenter, int radius)

  This function should select a circle from your picture and turn each pixel within that circle to the corresponding grayscale value.

• a creative function of your choosing

  This function should do something interesting and creative to your picture. It should not just be a rehashing of a previous exercise or lab, and there should be a good amount of thought and effort placed into this function.

When turning in your project, be sure to include include tests and examples of pictures from each picture.

Grading

• General Grading Form
• Project-specific Grading Form