MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER GRAPHICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Lossy compression
A
is high quality compression of many types of images
B
pieces of your crushed camera
C
reduces a file by permanently eliminating certain information
D
is when a fat cat sits on a mouse
Explanation: 

Detailed explanation-1: -Lossy compression reduces a file by permanently eliminating certain information, especially redundant information. When the file is uncompressed, some of the original information is not there, although the user may not notice it.

Detailed explanation-2: -Lossy compression algorithms reduce the size of files by discarding the less important information in a file, which can significantly reduce file size but also affect file quality.

Detailed explanation-3: -There are two methods of compression – lossy and lossless. Lossy reduces file size by permanently removing some of the original data. Lossless reduces file size by removing unnecessary metadata.

Detailed explanation-4: -Lossy compression is most commonly used to compress multimedia data (audio, video, and images), especially in applications such as streaming media and internet telephony. By contrast, lossless compression is typically required for text and data files, such as bank records and text articles.

Detailed explanation-5: -Cameras that use lossy compression, such as the compression inherent in a JPG format, discard actual picture information to create smaller file sizes.

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