blob: 44edefd4ba1216df86728a75262699599c949767 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
#!/bin/sh
if [ $# -ne 1 ]; then
echo "usage: $0 image"
exit
fi
echo "converting image to pdf, trying all compressions imagemagick has to offer"
echo "if, as a result, Zip/FlateDecode should NOT be the lossless compression with the lowest size ratio, contact me j [dot] schauer [at] email [dot] de"
echo "also, send me the image in question"
echo
imsize=`stat -c "%s" "$1"`
for a in `convert -list compress`; do
echo "encode:\t$a"
convert "$1" -compress $a "`basename $1 .jpg`.pdf"
pdfimages "`basename $1 .jpg`.pdf" "`basename $1 .jpg`"
printf "diff:\t"
diff=`compare -metric AE "$1" "\`basename $1 .jpg\`-000.ppm" null: 2>&1`
if [ "$diff" != "0" ]; then
echo "lossy"
else
echo "lossless"
fi
printf "size:\t"
pdfsize=`stat -c "%s" "\`basename $1 .jpg\`.pdf"`
echo "scale=1;$pdfsize/$imsize" | bc
printf "pdf:\t"
grep --max-count=1 --text /Filter "`basename $1 .jpg`.pdf"
echo
done
|
