mirror of https://github.com/CrimsonTome/tldr.git
pambackground, pamstretch-gen, pamstretch, pbmclean, pbmmask, pbmpage, pbmpscale: add pages (#12237)
* pambackground, pamstretch-gen, pamstretch, pbmclean, pbmmask, pbmpage, pbmpscale: add pages * add missing linefeed * Update pages/common/pamstretch.md Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com> * Apply suggestions from code review Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com> --------- Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com> Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>pull/23/head
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# pambackground
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> Create a mask of the background in a PAM image.
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> See also: `pbmmask`.
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> More information: <https://netpbm.sourceforge.net/doc/pambackground.html>.
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- Create a mask of the background in a PAM image:
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`pambackground {{path/to/image.pam}} > {{path/to/output.pam}}`
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# pamstretch-gen
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> Scale up a PAM image by decimal values.
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> See also: `pamstretch`, `pamenlarge`, `pamscale`.
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> More information: <https://netpbm.sourceforge.net/doc/pamstretch-gen.html>.
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- Scale up a PAM image by the specified decimal factor:
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`pamstretch-gen {{N}} {{path/to/image.pam}} > {{path/to/output.pam}}`
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# pamstretch
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> Scale up a PAM image by interpolating between pixels.
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> See also: `pamstretch-gen`, `pamenlarge`, `pamscale`.
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> More information: <https://netpbm.sourceforge.net/doc/pamstretch.html>.
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- Scale up a PAM image by an integer factor:
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`pamstretch {{N}} {{path/to/image.pam}} > {{path/to/output.pam}}`
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- Scale up a PAM image by the specified factors in the horizontal and vertical directions:
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`pamstretch -xscale {{XN}} -yscale {{YN}} {{path/to/image.pam}} > {{path/to/output.pam}}`
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# pbmclean
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> Clean up a PBM image by erasing isolated black and white pixels.
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> More information: <https://netpbm.sourceforge.net/doc/pbmclean.html>.
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- Clean up a PBM image by erasing isolated black and white pixels:
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`pbmclean {{path/to/image.pbm}} > {{path/to/output.pbm}}`
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- Clean up only black/white pixels:
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`pbmclean -{{black|white}} {{path/to/image.pbm}} > {{path/to/output.pbm}}`
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- Specify the minimum number of neighbouring pixels of the same color in order for a pixel not to be considered isolated:
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`pbmclean -minneighbours {{3}} {{path/to/image.pbm}} > {{path/to/output.pbm}}`
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# pbmmask
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> Create a mask bitmap from a regular bitmap.
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> See also: `pambackground`.
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> More information: <https://netpbm.sourceforge.net/doc/pbmmask.html>.
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- Create a mask bitmap separating background from foreground:
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`pbmmask {{path/to/image.pbm}} > {{path/to/output.pbm}}`
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- Expand the generated mask by one pixel:
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`pbmmask -expand {{path/to/image.pbm}} > {{path/to/output.pbm}}`
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# pbmpage
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> Generate a test pattern for printing.
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> More information: <https://netpbm.sourceforge.net/doc/pbmpage.html>.
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- Generate a test pattern for printing onto US standard paper:
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`pbmpage > {{path/to/file.pbm}}`
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- Generate a test pattern for printing onto A4 paper:
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`pbmpage -a4 > {{path/to/file.pbm}}`
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- Specify the pattern to use:
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`pbmpage {{1|2|3}} > {{path/to/file.pbm}}`
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# pbmpscale
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> Enlarge a PBM image with edge smoothing.
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> See also: `pamenlarge`.
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> More information: <https://netpbm.sourceforge.net/doc/pbmpscale.html>.
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- Enlarge a PBM image by the specified factor with edge smoothing:
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`pbmpscale {{N}} {{path/to/image.pbm}} > {{path/to/file.pbm}}`
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