Assignment 2

Assignment 2 is out! Start early and have fun!

Misc.

Here are a few GIF images with good color quality and good use of animation (click to see them in full resolution):

 

Here is also an interactive color wheel application that can be used in website design:

http://colorschemedesigner.com/


Thanks a lot Rushdi Mahdawi (section 2) for this nice contribution :)

What is Color?

It is a bit difficult to explain what color is! Here are few non-technical videos that highlight the problem.

Manipulating PPM Images in C++

Here is a snapshot of code that manipulates PPM images, which you can take as a reference.
[There is a missing out.close(); statement at the end]

PPM and PGM

Here are two links for free image viewers/converters that know how to handle PPM/PGM/PBM images:

Imagine Picture Viewer
GIMP

Note also that Photoshop views PPM/PGM/PBM images. And of course, you can always google for "free PPM image converter" and choose the one you like.

Here are also two sets of PPM and PGM images that you can use if you do not wish to download a converter.

Image set 1
Image set 2

For slow connections, you can download these files: football.ppm, football.pgm

Note that PPM images can be: binary or ASCII. The code we write in class works for ASCII PPM.

If the converter does not ask you to select between ASCII and binary the default is usually "binary", which is not very helpful in our case.

Some converters add a comment line at the top. Open the image in a text editor and remove this comment line before running your code. 

Exercises on Color Lookup Tables

I have just uploaded two exercises on the creation of color lookup tables. You can find them in the course material tab.

There is also a question in the last page of the first exam (Spring 2013) which you may want to have a look at.
[For section 2: This is the exercise we did in class.]
[For section 1: We did an exercise on the median cut algorithm only, so make sure to have a look at the others].

A Few Notes Again,

• I have added the exercise we did on transitions (with solutions) in the course material tab. It also includes another exercise on the dither dissolve transition (This transition is actually a wipe transition). Have a look at it and let me know if you have any difficulties.

• How do I discuss in the report about why the multimedia project is interesting?
  Describe how usually other multimedia applications perform the task and what is different in how your chosen application performs it. Compare and contrast to show why it is interesting.

• Avoid general topics such as: "Motion Capture" or "Video Watermarking". Your choice has to be for a specific project/application/tool/etc that has a URL.