What is Digital Negative (DNG)? - Definition from WhatIs.com

Definition

Digital Negative (DNG)

Part of the Data and data management glossary:

Digital Negative (DNG) is an imaging specification that provides for long-term storage of digital photographs generated in multiple proprietary formats. The specification was released in September 2004 on a royalty-free basis by Adobe Systems. At the same time, a program was released by Adobe that converts image files from most digital cameras into DNG format.

The images that a digital camera originally generates are known as raw image files. Each camera manufacturer has its own proprietary raw image file format. Professional photographers prefer to shoot and store digital images in raw format, because this avoids problems with lossy compression that can occur when files are converted to standard formats such as JPEG.

Unfortunately, there exists no common standard format for raw image files. This can result in compatibility problems because proprietary formats are likely to become obsolete as digital camera technology evolves. The DNG specification was conceived and developed with the intent of eliminating such problems by becoming a standard format for long-term storage and archiving of digital photographs. Market forces will determine whether or not this ideal can be achieved. Some digital camera manufacturers are embracing DNG, but others are resisting it.

This was last updated in March 2011
Posted by: Margaret Rouse

Related Terms

Definitions

  • DataOps (data operations)

    - DataOps (data operations) is an approach to designing, implementing and maintaining a distributed data architecture that will support a wide range of open source tools and frameworks in production. (SearchDataManagement.com)

  • causation

    - Causation, or causality, is the capacity of one variable to influence another. The first variable may bring the second into existence or may cause the incidence of the second variable to fluctuate. (WhatIs.com)

  • correlation

    - Correlation is a statistical measure that indicates the extent to which two or more variables fluctuate in tandem. (WhatIs.com)

Glossaries

  • Data and data management

    - Terms related to data, including definitions about data warehousing and words and phrases about data management.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question About Digital Negative (DNG)Powered by ITKnowledgeExchange.com

Get answers from your peers on your most technical challenges

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.