Due Date: Apr 5^th 1999

In this assignment, you will take two or more images and create an image mosaic using techniques discussed in the lecture. This assignment must be completed in two parts:

• Write a program to detect edges in an image using the Canny Edge Detection technique. The program should take three arguments, namely, an input pgm file, a value that indicates the percentage of the pixels in the image that should be edges and an output file containing the "edge-detected" image. The command-line interface should look something like this:

• Write another program that takes two images (pgm format) as input and returns a mosaiced image. In addition to the two images, the program should take arguments for initial translation, scaling and search radius parameters. It should also print the translation and scaling parameters discovered by your algorithm to the standard output (stdout – i.e. screen). Note that in this assignment, you are only required to perform translation and scaling transformations to form the image mosaic. The command-line interface should look like this:

Here is a list of web-sites that contain information on image mosaicing. You are encouraged to use them as references in order to do the assignment.

• You should use C or C++ and please make sure that your code compiles on the Windows platform. You are free to use whatever libraries that are available to manipulate the images (short of actually doing the assignment), however these libraries must be statically linked into your executable.

• We will provide you with a pair of images to be mosaiced on the web. The minimum requirement is for your mosaicing implementation to work on these images.

• You are required to send "hw2.zip" file as an attachment containing the following:

• Source code and executables (canny.exe and mosaic.exe)
• Readme.txt containing instructions on how to compile and run your program.
• Makefile (that can be run using nmake) or MS VisualStudio project files. Do not include object files if not necessary for compilation.

• How to submit?

• Send hw2.zip as an attachment to warkhedi@cs.cornell.edu
• The subject header of your e-mail must contain the string "CS631: HW2" (ignoring the whitespaces & case).
• The assignment should be submitted on or before 11:59pm Apr 5^th 1999.

• Grading

• This assignment will be graded on a scale of 10.
• The grade will primarily be based on correctness of your mosaicing implementation.