BMP Format Introduction
BMP is a Windows bitmap format, simple and uncompressed with good compatibility
History
BMP (Bitmap) format was developed by Microsoft in the 1980s as the native image format for Windows operating systems. As one of the earliest digital image formats, BMP is known for its simplicity and compatibility, requiring no decoder to display in Windows systems.
Technical Features
BMP uses uncompressed storage, directly saving the color value of each pixel. It supports 1-bit (black and white), 4-bit, 8-bit, 16-bit, 24-bit, and 32-bit color depths. The file structure is simple, containing a file header, information header, palette (optional), and pixel data. Files are large but read and write quickly.
Use Cases
BMP is primarily used for Windows application development, simple image processing, embedded systems, and scenarios requiring fast pixel data access. Suitable for internal image storage where storage space is not a concern, and professional applications requiring lossless, uncompressed images.
Advantages
- Simple format, easy to parse
- Uncompressed, perfect image quality
- Native Windows system support
- Fast read/write speed
- Wide compatibility
Disadvantages
- Very large file sizes
- No transparency support
- Not suitable for web transmission
- No animation support
- Lacks advanced features