CPSC 815 Special Effects Production
Fall 2002
Project 3

Objectives:

• To learn preliminary image coding operations: I/O, display, GUI interaction, simple geometric transformations.

Motivation:

• This project examines issues involved in programming a simple image manipulation tool (a simplified version of the Gimp essentially), including data structures for internal image representation and simple geometric image transformations.

Due dates:

Project writeup (Image Manip tool): 11/26/02

Description:

• Implement a GUI-based image maniuplation tool which allows the user to rotate and scale an image. This will form the basis for further image manipulation programming assignments.

Notes, suggestions, and additional requirements:

• In the first part, use a good (expandable) data structure as this program will form the basis for future image manipulation assignments.
• For the program, the use of a good toolkit is recommended (such as gtk; please no GLUT). The following interaction mechanisms should be made available to the user:
  • for the scale (resize) operation, provide the user with several interaction methods, i.e., by using the corners and borders of the image frame, and by using a dialog to explicitly set the image dimensions.
  • for the rotation operation, allow the user to specify a rotation angle.
  • add a toggle button letting the user toggle bilinear interpolation (where applicable, e.g., rotation).

What to hand in:

``Professional-quality'' brief writeup, including:

1. Cover page containing: Course Id--Section No.
   Name:
   Assignment No.
   
2. Assignment description
3. Screenshots of the program, including the GUI control and image windows
4. Sample images

Electronic submission of images: provide a URL (web address) to your on-line presentation of the assignment. To keep the page size manageable, please use reduced images on your web page, but provide links to the full-scale example images.