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Comp Sci. Lecture: Assignment 1, Colour, Servers, Graphics, etc.

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Computer Science
Computer Science 1033A/B
Laura Reid

Computer Science Lecture - Assignment - Colour Schemes - Kulu (Adobe) program that’s useful when making colour schemes - FTP substitute is FUGU for Mac - Indexed Colour: instead of using 10million colours, we only need to use 256 (depending on the picture; if you’re working on a forest you only need greens and browns) It’s actually hard to tell the difference between 24bit and 8bit colour (10million colours and 256 colours) Advantage of Having a Server - Connected: Computer is on all the time and connected to the internet - Always Available - Well maintained - UWO Web Server is called - It hosts our webpages - We upload our assignments to panther in order to see them on the internet from any machine. - Upload using a FTP program such as FileZilla or Fugu - Log on to Panther by selecting Secure File Transfer client and enter what it prompts. - To make sure that people can see, right click on every folder and hit properties, then make sure the checkmarks go in an upside down U. You have to do this for every folder, everything in the folder, that you want people to see. - For Assignment 1, check the permissions in FTP - Double Check that it worked How many colours can you represent with a 5 bit depth? 2^5 = 32 colours (This kind of question will be on the exam) What’s the smallest value you should set the dpi when you print the image? 300 When converting analog to digital what are two things you have to do to analog the data Sampling and Quantizing How big will the following image be when printed? 600 px by 900 px printed at 300 dpi? 2 by 3 inches Bitmapped Images VS. Vector Graph
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