GIF

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GIF

Computing
a. a standard compressed file format used for pictures
b. a picture held in this format

GIF

[gif]
(computer science)

GIF

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, screen shots 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 images are saved as JPEGs with limited compression (users have a choice), text does render rather well (see JPEG). See GIF patents, lossless compression, graphics formats and PNG.


More Shades Than Apparent
At first glance, it looks like the Android robot logo is only green, white and black. Zooming into one of its antennas shows more 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.
References in periodicals archive ?
Another issue with JIF is that each article counts as "1" in the ratio used to compute JIF.
A recent example from our institution provides another striking illustration of the difference between assessing an article with the JIF versus the RCR.
This research work addresses the quality metrics of selected United Arab Emirates Research Journals to establish their database coverage in Scopus and Web of Science and to compare, display discrepancies and draw suggestions interrelated to practical bibliometric factors such as JIF, ES, SJR and H5.
Editorials, letters, news items, and meeting abstracts are excluded from the JIF calculations because they are not generally cited ("Journal Citation Reports," 2012).
But during the provincial board hearing, Buted admitted that PSU did not have any formal agreement with JIF.
He added that the JIF will help fast track the construction of mega infrastructure projects like the 35,000-MW power plant, which is expected to be completed in 2019.
DUNDEE'S famous Jif lemon tree could make a comeback as part of the city's PS1billion waterfront development.
Team Sky's 28-year-old Maindy Flyers and Cardiff Jif product is also aided by the kings of the cobbles, Swiss powerhouse Fabien Cancellara (broken back) and Belgian Tom Boonen (broken elbow and dislocated shoulder), both being ruled out by recent crashes.
Journal impact factor (JIF) is one of the measures most commonly used and misused.
It's a tough choice, but B&Q wants to try to make it that bit'sier by giving you plenty of choice whichever route JIf you have to cut back your tree tr to make it fit, how about making use of the trimmings to crea cr te a matching wrea wr th and garland?
Earlier this year, the company unveiled such new cereals as Kellogg's Jif Peanut Butter and Rice Krispies Multi-Grain Shapes.
It doesn't have to be fresh lemon either, heck no, Jif squeezy lemon for childhood nostalgia purposes, if you please.