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The Pixel Calculator |
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| Navigation Toolbar | The Pixel Calculator is intended primarily for
use by students of ages 12-17 in a variety of enrichment activities involving
mathematics and digital image processing. The actual computations supported
by the program are manipulations of pixel values using operations of "pixel
arithmetic." The Pixel Calculator program provides a good introduction
for students to digital
images by allowing students to easily view and manipulate images as
both visual and mathematical objects. For example, the user may magnify
the image to view particular pixels and their numeric values. Using the
Pixel Calculator's viewing capabilities and following activity suggestions
in the users' guide, students can quickly and enjoyably familiarize themselves
with the relationship between pixel value and visual brightness.
The program also provides a calculator interface, which allows students to arithmetically manipulate the pixel values. Students quickly discover that very simple operations may have stark visual effects. For example the "255 - #" operation creates a negative of the image. To see what the program is like, check out this picture of the Pixel Calculator's user interface.
tanimoto@cs.washington.edu Last modified: Monday, 19 May 1997. |
