MIME type: image/bmp
proper name: Windows bitmap
Description: the format most commonly used by Microsoft Windows programs and itself. Lossless data compression can be used, but some programs can only use files that are not compressed.
.iff, .ilbm
Inherent name: Interchange file format/Interleave bitmap
Description: It is very popular on Amiga computers. ILBM is a chart type format of IFF, which can contain more
pictures.
. tiff,. tiff
MIME type: image/tiff
Inherent name: label image file format
Description: it is widely used in traditional image printing and can be compressed with loss or loss, but many programs only support some functions of optional items.
.png
MIME type: image/png
proper name: portable network image
description: lossless compressed bitmap format. Originally designed to replace GIF format files on the Internet. Has nothing to do with the patent right of GIF.
.gif
MIME type: image/gif
proper name: graphic interchange format
description: it is widely used on the internet, but sometimes it is not used for patent reasons. Support animated images, support 256 colors, and lossy compress true color pictures. Using multiple frames can improve color accuracy.
.jpeg .jpg
MIME type: image/jpeg
Inherent name: Joint Photographic Experts Group
Description: It is widely used to store photos on the Internet. With lossy compression, the quality can be different according to the setting of compression.
.mng
MIME type: video/x-mng
Inherent name: multiple-image network graphics
Description: The animation format of data streams similar to PNG and JPEG was originally designed as an alternative format of GIF. Has nothing to do with the patent right of GIF.
.xpm image/x-xpm
Inherent name: color image file format
Description: widely used in X Windows System on UNIX platform. An ASCII format without compression
.psd
Inherent name: Photoshop file
Description: the standard format of Photoshop file. There are many extra functions such as layers. Only supported by a few other software.
.psp
Inherent name: Paint Shop Pro file
Description: The standard format of Paint Shop Pro file is similar to. psd for Photoshop. Supported by few programs.
.xcf
Inherent name: Experimental computing facility
Description: It has many additional features such as layers, which are mainly used in GIMP, but can also be read by ImageMagick.
.ppm
Inherent name: Portable Pixmap Format
Description: a very simple graphic format, used to exchange bitmaps.