Or download our app "Guided Lessons by Education.com" on your device's app store.
Encoding Digital Images
Whether you are taking photos with your iPhone, watching a DVD, reading a pdf, or checking out Google images, digital images are everywhere. This is quite amazing because these images require a lot of memory. The memory required by these complex images makes them hard to store and time-consuming to download.
Almost everyone is familiar with pixels – the rows of tiny dots that make up an image. The resolution of an image depends upon the number of pixels used in a particular image. A raster image is a data structure that stores information about those pixels. The data about these pixels is compressed, using a particular encoding algorithm so that the image takes up less memory. A lossless algorithm permits the image to be reproduced without losing any information. A lossy algorithm is one in which some of the data is lost so that the image can be compressed even more.
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.