Browse Definitions :
Definition

lossless and lossy compression

Lossless and lossy compression are terms that describe whether or not, in the compression of a file, all original data can be recovered when the file is uncompressed. With lossless compression, every single bit of data that was originally in the file remains after the file is uncompressed. All of the information is completely restored. This is generally the technique of choice for text or spreadsheet files, where losing words or financial data could pose a problem. The Graphics Interchange File (GIF) is an image format used on the Web that provides lossless compression.

On the other hand, lossy compression reduces a file by permanently eliminating certain information, especially redundant information. When the file is uncompressed, only a part of the original information is still there (although the user may not notice it). Lossy compression is generally used for video and sound, where a certain amount of information loss will not be detected by most users. The JPEG image file, commonly used for photographs and other complex still images on the Web, is an image that has lossy compression. Using JPEG compression, the creator can decide how much loss to introduce and make a trade-off between file size and image quality.

This was last updated in June 2015

Continue Reading About lossless and lossy compression

Join the conversation

8 comments

Send me notifications when other members comment.

Please create a username to comment.

What are you on you imbecile, GIF is lossy. Check yourself before you Rickety Wreck Yourself. Get schooled fool. - Big O
Cancel
Sorry didn't mean to publish that but just letting you know
Cancel
Best Reply 10/10
Cancel
epic

Cancel

To be fair you have to have a very high IQ to understand Rick and Morty. The humour is extremely subtle, and without a solid grasp of theoretical physics most jokes will go over the typical viewers head. There's also Rick's nihilistic outlook which is deftly woven into his characterisation - his personal philosophy draws heavily from Narodnaya Volta literature, for instance. The fans understand this stuff; they have the intellectual capacity to to truly appreciate the depths of these jokes, to realize that they're not just funny - they say something deep about LIFE. As a consequence people who dislike Rick and Morty truly ARE idiots-of course they wouldn't appreciate for instance, the humour in Rick's existential catchphrase "Wubba Lubba Dub Dub," which itself is a cryptic reference to Turgenev's Russian epic Fathers and Sons I'm smirking right now just imagine one of those addlepated simpletons scratching their heads in confusion as Dan Harmon's genius unfolds itself on their television screens. What fools... how I pity them. And yes by the way I DO have a Rick and Morty tattoo. And no you cannot see it. It's for the ladies' eyes only- And even they have to demonstrate that they're within 5 IQ points of my own (preferably lower) before hand.

Cancel
This was very useful for my school project. Thanks.
Cancel
it is not useful for school projects
Cancel
why does lossy and lossless together 
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • compliance audit

    A compliance audit is a comprehensive review of an organization's adherence to regulatory guidelines.

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

SearchSecurity

  • payload (computing)

    In computing, a payload is the carrying capacity of a packet or other transmission data unit. The term has its roots in the ...

  • passphrase

    A passphrase is a string of characters longer than the usual password (which is typically from four to 16 characters long) that ...

  • Web application firewall (WAF)

    A Web application firewall (WAF) is a firewall that monitors, filters or blocks traffic to and from a Web application. WAFs are ...

SearchHealthIT

SearchDisasterRecovery

SearchStorage

  • computational storage

    Computational storage is defined as an architecture that couples compute with storage in order to reduce data movement. In doing ...

  • data deduplication

    Data deduplication -- often called intelligent compression or single-instance storage -- is a process that eliminates redundant ...

  • public cloud storage

    Public cloud storage, also called storage-as-a-service or online storage is a service model that provides data storage on a ...

Close