Images add dimension and interest in almost every context; however, using images on the web can be a bit tricky. This week we have been studying the world of digital images, discussing everything from resolution to copyright. For digital images to appear in the best quality, we learned that the resolution must be set to 72 pixels per inch. At this resolution, pictures are at a great size for use on the web.
We also learned that there are two types of images that are commonly used on the web. The first, raster images, are made up of many pixels a numerical value representing color. The second, vector images, are composed of paths, vectors, which can be straight or curved. For a mathematically minded person this is a very cool concept! Vectors, in mathematics, are defined only as straight paths; however, for vector images this rule is broken. Because vector images are made of paths, they can be scaled larger or smaller without losing quality! This is a very intuitive use of mathematics.
We worked on two projects to practice with digital images. For the first project, we were to create a Picasa Web Album, a Google tool, which contained images of any content collected from the web. We then used that album to create a slideshow. For this project, we had to be mindful of the copyright regulations tied to using images on the web. Thus, we learned about Fairuse principles and finding free image collections on the web, such as Pics4Learining and Flickr Creative Commons.
The Scavenger Hunt project had us, in the math content area, scope out geometry concepts in the real world, take pictures of it, and create a presentation with the pictures. It was so much fun! For this project, it was vital to understand the proper resolution for images we use on the web and to have a consistent organizational strategy for the pictures. This really helped to keep a consistent look within the presentation.
Digital images are a great way to spice up text in many contexts when used appropriately!
The Scavenger Hunt project had us, in the math content area, scope out geometry concepts in the real world, take pictures of it, and create a presentation with the pictures. It was so much fun! For this project, it was vital to understand the proper resolution for images we use on the web and to have a consistent organizational strategy for the pictures. This really helped to keep a consistent look within the presentation.
Digital images are a great way to spice up text in many contexts when used appropriately!
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