10 if [ -n "$scaledown" ]; then
11 mogrify "$X" -geometry "$scaledown<" -quality 100
13 jpegoptim --strip-all -m$qual "$X"
16 if [ -n "$scaledown" ]; then
17 mogrify "$X" -geometry "$scaledown<" -quality 100
19 if convert "$X" -depth 16 RGBA:- | perl -e 'while(read STDIN, $_, 8) { substr($_, 6, 2) eq "\xFF\xFF" or exit 1; ++$pix; } exit not $pix;'; then
20 echo "$X has no alpha, converting"
21 convert "$X" -quality 100 "${X%.*}.jpg"
22 jpegoptim --strip-all -m$qual "${X%.*}.jpg"
25 echo "$X has alpha, not converting"