GIF


Also found in: Dictionary, Thesaurus, Medical, Financial, Acronyms, Idioms, Wikipedia.

GIF

Computing
a. a standard compressed file format used for pictures
b. a picture held in this format
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

GIF

[gif]
(computer science)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

GIF

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

GIF

(Graphics Interchange Format) A popular bitmapped graphics file format developed by CompuServe. Pronounced "jif" or "gif" (hard g), GIF images are widely used on the Web because the format is compressed and takes up less space.

GIF supports 8-bit color (256 colors), but it gets the most mileage out of its limited colors by using a built-in color palette. For example, the palette for an image of a forest would mostly contain shades of green and brown. If all the colors in the image are within a tight range, GIFs provide excellent realism for an 8-bit format. In contrast, JPEGs are 24 bits. See indexed color.

GIF87a and GIF89a
The original GIF87a and subsequent GIF89a are named after their year of introduction. GIF89a allows one of the colors to be transparent and reflect the background color of the underlying page or window (see alpha channel). GIF89a also supports a limited form of animation by rendering multiple frames in sequence (see animated GIF).

GIFs and JPEGs
Both GIF and JPEG images are widely supported on the Web. Charts and technical drawings are typically GIFs because GIFs use lossless compression, and the text is maintained properly. Photos are generally better rendered as JPEGs, which support 24-bit color, and they can be highly compressed. However, if drawings are saved as JPEGs with limited compression (users have a choice), the text renders quite well (see JPEG). See GIF patents, lossless compression, graphics formats and PNG.


More Shades Than Apparent
At first glance, it looks like the Android logo is white, black and one shade of green. Zooming into one of its antennas shows several shades (see dithering).







Even More Colors
The GIF format picks the 256 most used colors in an image. Notice how the colors in the palettes match the two images.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
That difference between the six-second ad--which has also become a favorite for marketers in recent years--and GIFs is important to understanding the burgeoning trend of GIFs as ads.
You can now add moving sparkles, word art or fun accessories like sunglasses or hats to your stories, by simply tapping the blinking 'GIF' option when you tap to add a sticker to a photo or video.
to Facebook as users can already post GIFs to status updates, the comments
"In 2016, GIF proved to be a successful showcase for the both exhibitors and visitors.
For the teacher wrestling with these aspects of their responsibilities, the GIF is a gift.
The popularity of GIFs have skyrocketed thanks to the near-ubiquitous use of mobile devices.
Washington: Facebook has now introduced support for animated GIFs in the News Feed.
With this in mind the company is delighted to once again sponsor the energy segment of GIF in our service to the national economy."
And then there is the animated GIF, simultaneously the shortest variety of motion picture (just a few seconds) and the longest (those seconds loop forever).
A spin-off of e-card creation site JibJab, with the new tool (only available on iPhone for now) you take or upload a head shot and position it on a background - say, your face as a tear dropping from Miley Cyrus's eye - add a tagline, then send your comedy gif via text message, social media or just by copying and pasting the link.
According to World Bank, the GIF will be a global platform for collaboration between public and private partners to help prepare and design complex public-private infrastructure projects to make them viable for new sources of long-term private capital.