MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Lossy
|
|
|
Lossless
|
|
|
Both
|
|
|
None of the above
|
Detailed explanation-1: -The Graphics Interchange File (GIF), an image format used on the internet, is generally compressed using lossless compression. RAW, BMP and PNG are also lossless image formats. Lossy compression is mainly used to compress: images.
Detailed explanation-2: -So if you are looking to retain the quality of your images, lossless compression is definitely the way to go. Advantages: No loss of quality, slight decreases in image file sizes. Disadvantages: Larger files than if you were to use lossy compression.
Detailed explanation-3: -Lossy compression: reduces file size by discarding information that is likely to be invisible to the human eye. Most of these algorithms have a variable quality threshold-as compression increases, the quality of an image decreases. Joint Photographic Experts Group format.