BMP (Bitmap Image File)
BMP is an uncompressed raster image format native to Microsoft Windows. It stores pixel data with no compression, resulting in very large files but zero quality loss. BMP is primarily used in Windows system graphics and as an intermediate format during image processing.
MIME Type
image/bmp
Type
Binary
Compression
Lossless
Advantages
- + Zero compression means zero quality loss
- + Simple format easy to read and write programmatically
- + Native Windows support without external libraries
Disadvantages
- − Extremely large file sizes
- − Not suitable for web delivery
- − Limited browser support outside Windows
When to Use .BMP
Use BMP only when uncompressed pixel data is required, such as in Windows system programming or as a lossless intermediate format.
Technical Details
BMP stores pixel data in a device-independent bitmap with optional RLE compression. It supports 1-bit through 32-bit color depths including 8-bit alpha channels.
History
BMP was introduced with Windows 1.0 in 1985 as the native image format for the OS/2 and Windows platforms. It has been updated several times with the latest version supporting ICC color profiles.
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