Different file formats photography2/10/2023 The meaning of Lossy is discussed Below.įrankly, JPG is used when small file size (for transfer or storage, web pages, email, memory cards, etc) is more important than maximum image quality. In general today, JPG is rather unique in this regard, of using lossy compression allowing very small files of lower quality, whereas almost all other file types use lossless compression (with larger files). Your digital camera offers that choice too, the menu usually called Image Quality (you do want to select best quality in the camera). Small file size and high image quality are opposites. However, this compression degree is optionally selectable (with an option setting named JPG Quality in your editor), to be lower quality smaller files, or to be higher quality larger files. A smaller file, yes, there is nothing like JPG for small, but this is at the cost of image quality. JPG uses lossy compression to accomplish this feat, which has a strong downside. Digital cameras and web pages use JPG files, because JPG heroically compresses the data to be very much smaller in the file. JPG is the file extension for JPEG files (Joint Photographic Experts Group, a committee of ISO and ITU). JPG is the most used image file format.
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