Understanding Computer Images

Students use Scion Image to estimate the proportion of space images. In this proportion lesson plan, students investigate the online site of Image of the Orbitor and relate the dimensions and sizes to known sizes.

This video aims to connect many topics in computer science to reach the writing of an application that can do something useful in actual life. The student will get to know the concept of ciphering and hiding, will have a glance at the...

This tutorial looks at the three common image formats used on the web: GIF, JPEG and PNG. You'll learn how these image formats work, and where to use each type of image in your web pages.

Astronomers practice downloading data from a high-energy satellite and translate the data into colored or shaded pixels. As a hands-on activity, they use pennies to simulate high-energy satellite data and they convert their penny...

Students examine digital images and how satellites orbiting Earth send information and pictures to Earth over the Internet. They use a digital camera to put pictures on a computer and decode a satellite image from space.

This website, from the University of Edinburgh, provides a lengthy glossary of computer graphics terms written by Olin Lathrop, author of "The Way Computer Graphics Work". This site provides simple definitions of basic terms; no graphics...

Students use technology to blend a photo of something they like with a picture of their face. Students work with layers, saturation, selecting tools, filters, and affects. Students use Adobe Photoshop Elements 3.0 in order to create...

Using matrix multiplication and inverse matrices, learners are trying to uncode a coded message. Students encrypt simple messages using 2 x 2 matrices.