In daily work and life, we often need to process various types of pictures. For Linux system users, it may be necessary to convert some pictures in JPG format to PNG format, or convert pictures in PNG format to JPG format. This is a very common requirement, but how to convert it under Linux system ? In this article, we will introduce you the method of seamlessly converting JPG and PNG formats under Linux, making your image processing easier.
Although we used the convert command- line tool in all examples, you can also use the mogrify command to achieve the same effect.
The syntax of the convert command is as follows:
$ convert 输入选项 输入文件 输出选项 输出文件
mogrify for:
$ mogrify 选项 输入文件
Note: When using the mogrify command, the source image file will be overwritten by the converted new file by default. You can use specific operation options to prohibit overwriting. The specific options can be found in the man page.
Below are various implementations for batch converting all .PNG format images to .JPG format. If you want to convert .JPG to .PNG format, you can also use these commands and modify them as needed.
The content operation is as follows:
1. Use the ls and xargs commands to convert PNG and JPG
The ls command can list all png image files, xargs makes it possible to build and execute the convert command from standard input,