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GIF files were used as it was a common format that supported transparency, unlike JPEG. These files were commonly named spacer.gif, transparent.gif or 1x1.gif. Prior to the widespread adoption of Cascading Style Sheets (CSS), the spacer GIFs were used to control blank space within a web page, that can be resized according to the HTML attributes ...
In addition, transparency is often an "extra" for a graphics format, and some graphics programs will ignore the transparency. Animated PNG 8-bit transparency. Raster file formats that support transparency include GIF, PNG, BMP, TIFF, TGA and JPEG 2000, through either a transparent color or an alpha channel.
WebP is a raster graphics file format developed by Google intended as a replacement for JPEG, PNG, and GIF file formats. It supports both lossy and lossless compression, [8] as well as animation and alpha transparency. Google announced the WebP format in September 2010, and released the first stable version of its supporting library in April 2018.
GIMP, similar to Adobe Photoshop. Used for the retouching of images, and creating raster graphics ( PNG , JPEG ). Can also be used to create animations ( GIF ) when the GIMP Animation Package (GAP) is installed.
GIF: Graphics Interchange Format CompuServe, Unisys (compression algorithm) .gif, .gfa, .giff image/gif General purpose, obsolete, now only used for animations Yes HEIF: High Efficiency Image Format Motion Pictures Expert Group (MPEG) .heif, .heic image/heif, image/heic, image/heic-sequence, image/heif-sequence General purpose No HDRi: TIFF ...
The GNU Image Manipulation Program, commonly known by its acronym GIMP (/ ɡ ɪ m p / GHIMP), is a free and open-source raster graphics editor [3] used for image manipulation (retouching) and image editing, free-form drawing, transcoding between different image file formats, and more specialized tasks.
Animated Portable Network Graphics (APNG) is a file format which extends the Portable Network Graphics (PNG) specification to permit animated images that work similarly to animated GIF files, while supporting 24 or 48-bit images and full alpha transparency not available for GIFs. It also retains backward compatibility with non-animated PNG files.
In 2D computer graphics, onion skinning is a technique used in creating animated cartoons and editing films to view several frames at once. This way, the animator or editor can make decisions on how to create or change an image based on the previous image in the sequence.