BMP (Bitmap) is very popular nowadays due to the common use of Windows. That is because BMP is the standard format used by Windows for saving image files. It contains more image information than the JPEG, and there is almost no compression of images. So it takes a larger disk space. Presently, 24 bits per pixel BMP files are the most common in all the 1, 4, 8, 15, 24, 32, 64 bits per pixel BMP files. 

DIB is device-independent bitmap, which exchanges DIB between devices and applications with a lot of internal data.

RLE is Run Length Encoding, lossless data compression in bmp format to decrease the file size.

2bp or 2bpp is also a kind of Windows bitmap.

Exif (Exchangeable Image File) is a specification for the image file format used by digital cameras. It can store digital photograph’s properties information and the shooting data. Exif is introduced by the Japan Electronic Industries Development Association (JEIDA). Version 2.2 is dated April 2002. Exif is existing in JPEG, TIFF, RIFF files, with the addition of specific metadata tags. It is not supported in JPEG 2000, PNG, or GIF.

The PNG (Portable Network Graphics) is a method to store images by compressing images with no loss of information. PNG files can store colors with up to 48 bits per pixel and gray scales with up to 16 bits per pixel. Moreover, it can also store an optional alpha channel for transparency. When PNG is used in the connected network, it can correct gamma and color of images automatically. So you can accurately render the images on different display devices.

To convert bmp dib rle 2bp exif to png file, please download PNG Still Creator.



Other image format definition:

SVG is a new two-dimensional vector graphics created in Aug, 2008 by W3C's SVG Working Group. It is not a private format but an open and co-developed industrial standard and thus SVG could be fast be developed and applied. As a vector graphics format, SVG outweighs GIF and JPEG (Bitmap image format) obviously by providing high-resolution picture, independent text, smaller size, and etc.

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