term% cat index.txt RESAMPLE(1) General Commands Manual RESAMPLE(1)
NAME
resample, resize - resample a picture
SYNOPSIS
resample [ -x size ] [ -y size ] [ file ]
resize [ -x size ] [ -y size ] [ file ]
DESCRIPTION
Resample and Resize resamples its input image (default standard input)
to a new size. Resample uses a Kaiser window which produces high qual‐
ity results and resize uses bilinear interpolation which is faster but
produces more fuzzy images.
The size of the resampled image can be specified with the -x and -y op‐
tions. An unadorned value sets the number of pixels of that dimension;
a suffixed percent sign specifies a percentage. If only one of -x or
-y is given, the other dimension is scaled to preserve the aspect ratio
of the original image. Thus, -x50% will reduce the image to half its
original dimension in both x and y.
The input should be a Plan 9 image as described in image(6), and the
output will be a compressed 24-bit r8g8b8 image. To uncompress the im‐
age or change the pixel format, use iconv (see crop(1)).
SOURCE
/sys/src/cmd/resample.c
/sys/src/cmd/resize.c
SEE ALSO
crop(1), image(6)
RESAMPLE(1)