 |
tnew - plan9port - [fork] Plan 9 from user space |
 |
git clone git://src.adamsgaard.dk/plan9port |
 |
Log |
|
Files |
|
Refs |
|
README |
|
LICENSE |
|
--- |
|
commit 4c55bb28b4b4300bd1cc138ec3fae50dafb09e2b |
|
parent 7fc7ed2a2200a6fc72c47fe374c37579091e4da5 |
|
Author: rsc <devnull@localhost> |
|
Date: Mon, 20 Mar 2006 03:32:52 +0000 |
|
|
|
new |
|
|
|
Diffstat: |
|
A man/man1/resample.1 | 58 ++++++++++++++++++++++++++++++ |
|
|
|
1 file changed, 58 insertions(+), 0 deletions(-) |
|
--- |
|
diff --git a/man/man1/resample.1 b/man/man1/resample.1 |
|
t@@ -0,0 +1,58 @@ |
|
+.TH RESAMPLE 1 |
|
+.SH NAME |
|
+resample \- resample a picture |
|
+.SH SYNOPSIS |
|
+.B resample |
|
+[ |
|
+.B -x |
|
+.I size |
|
+] [ |
|
+.B -y |
|
+.I size |
|
+] [ |
|
+.I file |
|
+] |
|
+.SH DESCRIPTION |
|
+.I Resample |
|
+resamples its input image (default standard input) to a new size. |
|
+The image is decimated or interpolated using |
|
+a Kaiser window. |
|
+.PP |
|
+The size of the resampled image can be specified |
|
+with the |
|
+.B -x |
|
+and |
|
+.B -y |
|
+options. |
|
+An unadorned value sets the number of pixels of that dimension; a suffixed per… |
|
+If only one of |
|
+.B -x |
|
+or |
|
+.B -y |
|
+is given, the other dimension is scaled to preserve |
|
+the aspect ratio of the original image. |
|
+Thus, |
|
+.B -x50% |
|
+will reduce the image to half its original dimension in both |
|
+.B x |
|
+and |
|
+.BR y . |
|
+.PP |
|
+The input should be a Plan 9 image |
|
+as described in |
|
+.IR image (6), |
|
+and the output will be a compressed 24-bit |
|
+.B r8g8b8 |
|
+image. |
|
+To uncompress the image or change the pixel format, use |
|
+.I iconv |
|
+(see |
|
+.IR crop (1)). |
|
+.PP |
|
+.SH SOURCE |
|
+.B \*9/src/cmd/resample.c |
|
+.SH "SEE ALSO |
|
+.IR crop (1), |
|
+.IR image (6) |
|
+.SH BUGS |
|
+Faster algorithms exist, but this implementation produces correct pictures. |
