May 27th, 2007 ··· andarius
I get pretty lazy when it comes to processing close to a hundred images for placement on a web site. First I need to make sure they are turned the right way. Then I need to make a thumbnail. Then I need a scaled down version for main display. To finish things off the thumbs need to be in the thumbs directory and the originals need to be in hi-res. Gahh that is a lot of work.
Scripting has made it simple. If one has Imagemagic and exiftran you can use this script to take care of all that for you.
#!/bin/bash
# This script will process images in the containing directory
# producing thumbnails with curved corners in a thumbs dir
# and scaled images in the base dir while moving the original
# images to a high res dir.
# ANSI Color -- use these variables to easily have different color
# and format output. Make sure to output the reset sequence after
# colors (f = foreground, b = background), and use the 'off'
# feature for anything you turn on.
initializeANSI()
{
esc=""
blackf="${esc}[30m"; redf="${esc}[31m"; greenf="${esc}[32m"
yellowf="${esc}[33m" bluef="${esc}[34m"; purplef="${esc}[35m"
cyanf="${esc}[36m"; whitef="${esc}[37m"
blackb="${esc}[40m"; redb="${esc}[41m"; greenb="${esc}[42m"
yellowb="${esc}[43m" blueb="${esc}[44m"; purpleb="${esc}[45m"
cyanb="${esc}[46m"; whiteb="${esc}[47m"
boldon="${esc}[1m"; boldoff="${esc}[22m"
italicson="${esc}[3m"; italicsoff="${esc}[23m"
ulon="${esc}[4m"; uloff="${esc}[24m"
invon="${esc}[7m"; invoff="${esc}[27m"
reset="${esc}[0m"
}
initializeANSI
# Process any image with exif data:
echo ${boldon}"Processing files with exif data,"${reset}
for img in `ls`
do
exiftran -ai $img
done
# Process jpeg files:
echo "*********************************"
echo ${boldon}"Looking for jpeg files,"${reset}
for img in `ls | grep jpeg`
do
mv $img `basename $img .jpeg`.jpg
echo -e "\tRenamed $img to `basename $img .jpeg`.jpg,"
done
echo "*********************************"
echo ${boldon}"Looking for bmp files,"${reset}
for img in `ls | grep bmp`
do
convert -quality 100 $img `basename $img .bmp`.jpg
rm $img
echo -e "\tConverted $img to `basename $img .bmp`.jpg,"
done
# Create the corners used in rounding:
echo "*********************************"
echo ${boldon}"Creating corners,"${reset}
convert -size 15x15 xc:black \( xc:none -draw 'circle 0,0 0,14' \) \
-matte -compose DstOut -composite corner_add.png
convert -size 15x15 xc:black \( xc:none -draw 'circle 0,0 0,14' \) \
-matte -compose DstOut -composite corner_sub.png
# Create the transparent square:
echo ${boldon}"Creating the transparent square,"${reset}
convert -size 120x120 xc:transparent square.gif
# Create the thumbs dir:
echo ${boldon}"Creating the thumbs dir,"${reset}
mkdir thumbs
echo "*********************************"
# Create the thumbs in thier dir:
echo ${boldon}"Creating the thumb and low-res images,"${reset}
for img in `ls *.jpg`
do
# Create the base thumbnails:
convert -size 400x400 $img -thumbnail '100x100>'\
-bordercolor black -border 0 -matte \
\( corner_add.png -flip -flop \) -gravity NorthWest -composite \
\( corner_add.png -flop \) -gravity SouthWest -composite \
\( corner_add.png -flip \) -gravity NorthEast -composite \
\( corner_add.png \) -gravity SouthEast -composite \
-compose DstOut \
\( corner_sub.png -flip -flop \) -gravity NorthWest -composite \
\( corner_sub.png -flop \) -gravity SouthWest -composite \
\( corner_sub.png -flip \) -gravity NorthEast -composite \
\( corner_sub.png \) -gravity SouthEast -composite \
-sharpen 10 thumbs/`basename $img .jpg`.gif
echo -e "\tCreated thumbs/`basename $img .jpg`.gif"
# Create the low-res image for viewing:
convert -scale 400x400 $img `basename $img .jpg`.png
echo -e "\tCreated `basename $img .jpg`.png,"
# End the loop:
done
echo "*********************************"
# Move to thumbs dir and make them square:
cd thumbs
echo ${boldon}"Creating the thumbs,"${reset}
for img in `ls *.gif`
do
composite -size 120x120 -gravity center $img ../square.gif $img
echo -e "\tCreated square thumb $img,"
done
# Change back to the root of this album:
cd ..
# Move the jpg files into thier own dir:
echo "*********************************"
echo ${boldon}"Moving .jpg files into hires,"${reset}
mkdir -p hi-res
mv *.jpg hi-res
# Clean up the mess we made:
echo ${boldon}"Cleaning up,"${reset}
rm square.gif
rm corner_add.png
rm corner_sub.png
echo ${boldon}"Done"${reset}
Leave a Reply
