How many formats are there for pictures? What are their characteristics?

1. BMP

BMP (full name Bitmap) is a standard image file format in Windows operating system, which can be divided into two categories: device vector-dependent bitmap (DDB) and device vector-free bitmap (DIB), which are widely used. It uses bit mapping storage format, and does not use any other compression except image depth, so BMP files occupy a lot of space.

2. TIFF

Tag Image File Format, abbreviated as TIFF. Is a flexible bitmap format, mainly used to store images including photos and art drawings. It was originally developed by Aldus Company and Microsoft Company for PostScript printing. TIFF has become a popular high-bit color image format with JPEG and PNG.

3. GIF

The data of GIF file is a lossless compression format of continuous tone based on LZW algorithm. Its compression ratio is generally around 5%, and it does not belong to any application. GIF format can store multiple color images. If the data of multiple images stored in one file are read out one by one and displayed on the screen, it can constitute the simplest animation.

4. PSD

PSD format can support various image features of layers, channels, masks and different color modes, but sometimes the capacity will be very large. However, because it can retain all the original information, it is the best choice to choose PSD format to save the unfinished images in image processing.

5. DXF format

DXF is the abbreviation of Drawing Exchange Format, with the extension of. DXF. It is a graphic file format in AutoCAD. It stores graphics in ASCII, which is very accurate in representing the size of graphics and can be called and edited by large software such as Corel Draw and 3DS.

Baidu encyclopedia -BMP format

Baidu encyclopedia -TIFF (image file format)

Baidu encyclopedia -GIF (image format)

Baidu encyclopedia -PSD (image file format)

Baidu encyclopedia -DXF.