GIF एक image There is a file format that is commonly used on the web as images and on software programs as sprites.
The full-form of GIF is “Graphics Interchange Format” Whereas, unlike the JPEG image format, GIFs use Lossless compression which does not reduce the quality of the image.
Where GIFs store images The data is indexed using color, which means that a standard GIF image can contain a maximum of 256 colors.
The original GIF format, also known as “GIF 87a”, was first published on CompuServe in 1987. Whereas in 1989, CompuServe released an updated version called “GIF 89a.” This 89a format was very similar to the 87a specification, but it included support for transparent backgrounds and image metadata.
Both formats support animations, for which they allow a stream of images to be stored in a single file. However, the 89a format includes support for animation delays.
Although it has been more than 25 years since the GIF format was published, but it is still used a lot in the web. Almost all GIFs use the 89a format.
At the same time, if you want, you can find out the version of a specific GIF image by simply opening them in a text editor and in which you just have to see the first six characters in the document (GIF87a or GIF89a).
Since GIFs only have 256 colors, they are not ideal for storing digital photos, such as those captured with a digital camera.
Even if a custom color palette is applied along with dithering to smooth out the image, the photos that are saved still look a bit grainy and unrealistic.
In such The JPEG format, which supports about millions of colors, is used more commonly to store digital photos.
GIFs best suits buttons and banners In the website, because these types of images typically do not require many types of colors.
However, most web developers prefer to use the newer PNG format, since PNGs support a broader range of colors as well as include an alpha channel.
[su_note note_color=”#fffde8″ text_color=”#000000″]Alpha channel makes it possible for any webpage background color to blend smoothly into a single image that has transparency.[/su_note]
Whereas, since neither JPEGs nor PNGs support animations, animated GIFs are still very popular on the web.
[su_note note_color=”#fff4e8″ text_color=”#000000″]A GIF image can actually store more than 256 colors. These are accomplished by separating the image into multiple blocks, each of which also contains unique 256 color palettes.[/su_note]
These blocks are combined into a single rectangular image, which can theoretically produce a “true color” or 24-bit image. But this process is rarely used as the resulting file size is much larger as compared to a comparable .JPEG file.
How is “GIF” pronounced?
Steve Wilhite, the creator of the original GIF format, pronounced it “jiff”. And many people pronounce it as “gif”. Whereas both pronunciations are accepted.
File extension: .GIF
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