| #!/bin/sh | |
| # shrink to a target width | |
| # default prefix | |
| VIPSHOME=${VIPSHOME-@prefix@} | |
| name=$0 | |
| bname=`basename $0` | |
| if [ $# != 3 ]; then | |
| echo "${bname}: usage: $bname <in> <out> <target width>" | |
| exit 1 | |
| fi | |
| inwidth=`$VIPSHOME/bin/vips im_header_int Xsize $1` | |
| factor=`(echo scale=10; echo $inwidth / $3) | bc` | |
| $VIPSHOME/bin/vips im_shrink $1 $2 $factor $factor |