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The PNG (Portable Network Graphics) file format was created as a free, open-source alternative to GIF. The PNG file format supports 8-bit (256 colors) paletted images (with optional transparency for all palette colors) and 24-bit truecolor (16 million colors) or 48-bit truecolor with and without alpha channel – while GIF supports only 8-bit ...
Facebook Stories are short user-generated photo or video collections that can be uploaded to the user's Facebook. Facebook Stories were created on March 28, 2017.
Image resolution is the level of detail of an image. The term applies to digital images, film images, and other types of images. "Higher resolution" means more image detail. Image resolution can be measured in various ways. Resolution quantifies how close lines can be to each other and still be visibly resolved. Resolution units can be tied to ...
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Original file (SVG file, nominally 512 × 91 pixels, file size: 2 KB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
In March 2017, a story function was introduced in Facebook Messenger. [7] In February 2018, Google launched AMP Stories, bringing a story-style format to certain Google search results on mobile devices. [8] In August 2018, YouTube introduced a stories function that initially was limited to pictures, but was later expanded to support short video ...
The main use of pngcrush is for reducing the size of the image data contained in the IDAT section. The pixel data in a PNG file is compressed using LZ77 algorithm (which tries to find repeated byte sequences in the source data), and then further compressed with Huffman algorithm. This combination is referred to as deflate compression. Before ...