Linux command
pnmcut 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
Cut rectangular region
pnmcut [x] [y] [width] [height] [input.pnm] > [output.pnm]
Cut from top-left corner
pnmcut -left [0] -top [0] -width [100] -height [100] [input.pnm] > [output.pnm]
Cut using bottom-right
pnmcut -left [10] -top [10] -right [200] -bottom [150] [input.pnm] > [output.pnm]
Pad if outside bounds
pnmcut -pad [x] [y] [width] [height] [input.pnm] > [output.pnm]
说明
pnmcut extracts a rectangular region from a PNM image. Coordinates are zero-indexed from top-left corner. Part of Netpbm toolkit for image manipulation.
参数
- -left _n_
- Left column.
- -right _n_
- Right column.
- -top _n_
- Top row.
- -bottom _n_
- Bottom row.
- -width _n_
- Width in pixels.
- -height _n_
- Height in pixels.
- -pad
- Pad with black if out of bounds.
FAQ
What is the pnmcut command used for?
pnmcut extracts a rectangular region from a PNM image. Coordinates are zero-indexed from top-left corner. Part of Netpbm toolkit for image manipulation.
How do I run a basic pnmcut example?
Run `pnmcut [x] [y] [width] [height] [input.pnm] > [output.pnm]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -left _n_ do in pnmcut?
Left column.