Linux command
pamtopng 命令
文本
涉及管道、覆盖或删除，执行前请先确认路径和参数。
常用示例
Convert PAM to PNG
pamtopng [input.pam] > [output.png]
Convert with maximum compression
pamtopng -compression [9] [input.pam] > [output.png]
Create interlaced PNG
pamtopng -interlace [input.pam] > [output.png]
Convert with transparency
pamtopng -transparent [white] [input.pam] > [output.png]
说明
pamtopng converts Netpbm PAM images to PNG format. It is the preferred tool over pnmtopng for images with alpha channels, as it properly handles PAM's native alpha support. Part of the Netpbm toolkit. Input is read from the specified file or standard input. Output is written to standard output.
参数
- -compression _n_
- Compression level (0-9, default: 6).
- -interlace
- Create interlaced (Adam7) PNG for progressive loading.
- -transparent _color_
- Set fully transparent color.
- -background _color_
- Background color for alpha blending.
- -gamma _value_
- Gamma value for the image.
- -srgbintent _intent_
- sRGB rendering intent: absolute, relative, perceptual, or saturation.
- -text _file_
- Add tEXt chunks from a text file.
- -verbose
- Print detailed progress information to standard error.
FAQ
What is the pamtopng command used for?
pamtopng converts Netpbm PAM images to PNG format. It is the preferred tool over pnmtopng for images with alpha channels, as it properly handles PAM's native alpha support. Part of the Netpbm toolkit. Input is read from the specified file or standard input. Output is written to standard output.
How do I run a basic pamtopng example?
Run `pamtopng [input.pam] > [output.png]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -compression _n_ do in pamtopng?
Compression level (0-9, default: 6).