What is the format of bmp? How to open the bmp file format?

BMP (full name Bitmap) is a standard image file format in the Windows operating system. It can be divided into two categories: device-dependent bitmap (DDB) and device-independent bitmap (DIB), which are widely used. It uses a bitmapped storage format. Except for the image depth optional, no other compression is used. Therefore, the BMP file takes up a lot of space. The image depth of BMP files can be selected as lbit, 4bit, 8bit and 24bit. When a BMP file stores data, the image is scanned in the order from left to right and bottom to top. Since the BMP file format is a standard for exchanging graph-related data in a Windows environment, the graphics image software running in the Windows environment supports the BMP image format.

A typical BMP image file consists of four parts:

1: Bitmap header file data structure, which contains information such as the type and display content of the BMP image file;

2: Bitmap information data structure, which contains BMP image width, height, compression method, and definition of color and other information;

3: palette, this part is optional, some bitmaps need Palette, some bitmaps, such as true color maps (24-bit BMP) do not need a palette;

4: bitmap data, the content of this part is different according to the number of bits used in the BMP bitmap The difference is that RGB is used directly in the 24-bit map, while the other is less than 24 bits using the color index value in the palette.

How to open bmp files?

This is a bitmap file for WINDOWS that can be opened using a brush or other image viewer.