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| author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2018-12-16 02:37:06 +0000 |
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| committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2018-12-16 02:37:06 +0000 |
| commit | 18fa5dc553c7645f08e1f0e826f6886f7cc775fe (patch) | |
| tree | e1d1d323d7bd17d308f67e236724e268db901715 | |
| parent | 1bd935c66a2c58fff65a8c9d3991bc838cc0b1ad (diff) | |
| download | netpbm-mirror-18fa5dc553c7645f08e1f0e826f6886f7cc775fe.tar.gz netpbm-mirror-18fa5dc553c7645f08e1f0e826f6886f7cc775fe.tar.xz netpbm-mirror-18fa5dc553c7645f08e1f0e826f6886f7cc775fe.zip | |
miscellaneous update
git-svn-id: http://svn.code.sf.net/p/netpbm/code/userguide@3456 9d0c8265-081b-0410-96cb-a4ca84ce46f8
| -rw-r--r-- | pnmpaste.html | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/pnmpaste.html b/pnmpaste.html index 7aaeaeb4..8342965e 100644 --- a/pnmpaste.html +++ b/pnmpaste.html @@ -2,7 +2,7 @@ <HTML><HEAD><TITLE>Pnmpaste User Manual</TITLE></HEAD> <BODY> <H1>pnmpaste</H1> -Updated: 05 July 2017 +Updated: 16 December 2018 <BR> <A HREF="#index">Table Of Contents</A> @@ -67,17 +67,22 @@ The default is <B>-replace</B>, which means to do the obvious paste: replace pixels of the "into" image with those of the "from" image. -<p><b>-and</b>, <b>-or</b>, and <b>-xor</b> are allowed only if both -input images are PBM images. They say to combine the "from" and -"into" images by performing boolean operations: Each pixel of -the output image is the result of the boolean operation on the corresponding -pixels of the two input image, where white is TRUE and black is FALSE. +<p><b>-and</b>, <b>-nand</b>, <b>-or</b>, <b>-nor</b>, <b>-xor</b>, +and <b>nxor</b> are allowed only if both input images are PBM images. They +say to combine the "from" and "into" images by performing boolean operations: +Each pixel of the output image is the result of the boolean operation on the +corresponding pixels of the two input image, where white is TRUE and black is +FALSE. <p>Note that this is different from what you would get by doing a bit arithmetic on the bits in the PBM images, because in PBM, white is represented by a 0 bit, and 0 in bit arithmetic corresponds to FALSE in boolean arithmetic. +<p><b>-nand</b>, <b>-nor</b>, and <b>-nxor</b> were new in Netpbm 10.85 +(December 2018). + + <H2 id="seealso">SEE ALSO</H2> <B><A HREF="pamcomp.html">pamcomp</A></B>, |