Picture file will "lose" in certain situations. For example, it may lose a picture file if Imagery processing software is forced to quit unexpectedly, or if your computer has a power interruption while you're writing, or if you close the file without saving changes,or virus attacks,or fomatted by a mistake,or deleted by a mistake operation.
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JPEG (Joint Photographic Experts Group) is a commonly used method of compression for photographic pictures. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality.The file format known as 'JPEG Interchange Format' (JIF) is specified in Annex B of the standard.
The BMP file format, sometimes called bitmap or DIB file format (for device-independent bitmap), is an picture file format used to store bitmap digital images.Many graphical user interfaces use bitmaps in their built-in graphics subsystems;
ICON-On computer displays, a computer icon (or simply an icon) is a small pictogram. Icons have been used to supplement the normal alphanumerics of the computer. Modern computers now can handle bitmapped graphics on the display terminal, so the icons are widely used to assist users.
GIF-The format supports up to 8 bits per pixel, allowing a single picture to reference a palette of up to 256 distinct colors chosen from the 24-bit RGB color space. It also supports animations and allows a separate palette of 256 colors for each frame.
Tagged picture File Format (abbreviated TIFF) is a file format for storing pictures, including photographs and line art. It is as of 2009 under the control of Adobe Systems.
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