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Comments- Spring 2008

Add questions, comments, or concerns here. Please add assignment realated questions to their questions pages.

Is it a good idea to take both 1316 and 1331 at the same time?
I don't understand how it would be beneficial, but it shouldn't hurt anything. Thanks! Brittany Duncan
Here's an example challenge (which I won't do):
Make a collage from a picture. The resulting collage should have the original picture in the center, a black-and-white version at the top left, a posterized version at the bottom left, a dark version at the top right and a sepia version at the bottom right. Colin Potts
What is the nature of this challenge, and can the TAs get in on it? -hopes- Chris Phillips
Give me a description of some picture manipulation and I'll code it in class. The above example is the kind of thing I was thinking of. You can join in, but be gentle. Colin Potts
Can we edit the lighting of a picture? For example, if a picture doesn't have an kind of a light in it and there really aren't any shadows in it, can we choose a direction from which we want light to come and create new shadows and things?
Far too difficult!!!! Colin Potts
Can you change the appearance of a person in a picture? (i.e. changing facial features and hair color and length and stuff like that?)
I've posted the purpleRinse and transplantHair code to the Slides/Code page. I fixed whatever the offset problem was that confused me at the end of class by defining some variables and using those. There must have been a minor arithmetic error, because I'm not aware of having changed the logic in any way. (I hope that is instructive in a perverse sort of way.) I've also posted the picture of me with some of my wife's purple-rinsed hair transplanted onto me. It's not perfect, but maybe an improvement of sorts. Colin Potts
Could you do a chroma key with the picture you are placing on the background and then have that image inverted or fade into the background?
I like this one. Chromakey a pic onto a background, but make it partly translucent, so it looks like a ghost (taking the average of the colors from the background and the pic being chromakeyed in, rather then just replacing the background with the chromakeyed pic, should work. I believe I tried it sometime last semester). Chris Phillips
Let's do this as a video special effect when we get to movies..... have Colbert materialize gradually, wielding a Jedi sword, on the Martian surface. Colin Potts
Could we make the Jedi sword glow to? (where the coloring around those pixels fades in and out?
As a movie? Yep. I can think of a way to do it. Chris Phillips
Can you tell me how to make the posterize.py work ? In particular, how to make it run ? I wrote my own code for grayscaling the picture but i am not sure how to run it finally. A sequence of steps to do it would be great. -N
Looks like you left this a bit late for HW2 (and you posted this in the wrong place)! You really need to go to a TA's office hours and/or recitation to find out about this, because you're clearly confused. This week would be a good time, because TA's won't be swamped with people doing homework, so you will get more one-on-one time. Colin Potts
After I download movie maker and click on it, I am prompted to select a program to run it in. Any suggestions?


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