$ F_NAME=blooming-blossom-blur-409696
$ F_EXT=jpg
$ convert $F_NAME.$F_EXT -resize 320 PNM:- | cjpeg -quality 80 -outfile output/$F_NAME-320.jpg
$ convert $F_NAME.$F_EXT -resize 460 PNM:- | cjpeg -quality 80 -outfile output/$F_NAME-460.jpg
$ convert $F_NAME.$F_EXT -resize 720 PNM:- | cjpeg -quality 80 -outfile output/$F_NAME-720.jpg
$ convert $F_NAME.$F_EXT -resize 980 PNM:- | cjpeg -quality 80 -outfile output/$F_NAME-980.jpg
$ convert $F_NAME.$F_EXT -resize 1240 PNM:- | cjpeg -quality 80 -outfile output/$F_NAME-1240.jpg
$ convert $F_NAME.$F_EXT -resize 1500 PNM:- | cjpeg -quality 80 -outfile output/$F_NAME-1500.jpg
$ convert $F_NAME.$F_EXT -resize 1760 PNM:- | cjpeg -quality 80 -outfile output/$F_NAME-1760.jpg
EIJI