Screenshot repair script for Linux/Mac

The screenshots captured in Linux and Mac builds have blue and red channels swapped, which makes the images look blue. I wrote a small bash script which detects bad screenshots and fixes them. Just execute the script in the 'Screenshots' folder. Also, you need to have imagemagick installed.

Code:

#!/bin/sh
# find handles errors better than simple wildcard
files=`find . -maxdepth 1 -type f -name 'screen-??-??-??-??-??-??.png'`
if [ -z "$files" ]; then
      echo "No screenshots to repair"
      exit
fi
echo "Processing..."
for img in $files; do
      # c1: Dark blue pixel in the health bar (should be gray/brown)
      # c2: Orange pixel in the score table (should be red)
      c1=`convert $img -format "%[pixel: u.p{10,10}]" info:`
      c2=`convert $img -format "%[pixel: u.p{50,150}]" info:`
      if [ "$c1" = "rgb(96,113,100)" -o "$c2" = "rgb(171,133,29)" ]; then
            echo "$img"
            convert "$img" -separate -swap 0,2 -combine "$img"
      fi
      # Rename the file so it won't be checked again when this script is used in the future
      mv "$img" "fixed-`basename $img`"
done
echo "Done"

The bug might get fixed before zombies arrive but I'm posting this anyway. Enjoy :)

Changelog:

Code:

17.2.2012: Initial version
18.2.2012: Changed c1 coordinates from (15,15) to (10,10). Should work for both HUD sizes.
20.2.2012: Added comments + processed files get renamed

 

It works great in Linux (Debian 6.0.4) , thanks for the script zninja.
Before:

After:

 

Doesn't work.

Code:

deck@archdck:~/KAG/Screenshots$ uname -a
Linux archdck 2.6.32-37-generic #81-Ubuntu SMP Fri Dec 2 20:35:14 UTC 2011 i686 GNU/Linux

Writes "done", tho

 

did you install imagemagick? Also make sure you run the script while your pwd is /Screenshots

 

Yes, its installed

Code:

deck@archdck:~$ sudo aptitude search imagemagick
p  graphicsmagick-imagemagick-compat  - image processing tools providing ImageMagick i
i  imagemagick                        - image manipulation programs               
p  imagemagick-dbg                    - debugging symbols for ImageMagick         
p  imagemagick-doc                    - document files of ImageMagick        

And yes, i run it from KAG/Screenshots folder (you can se it on my previous log)
Moreover, if i hadn't had imagemagick it would have written: "convert: command not found" but it's ok

 

The script checks only 2 pixels so it isn't 100% accurate. Some images might be left untouched. If that is not the case, then you might have an older/newer version of imagemagick which doesn't work as expected. Does it work if you try to convert an image manually?

Code:

 convert <INPUT> -separate -swap 0,2 -combine <OUTPUT> 

 

Yes. it works if i run it manually. Strangely..

 

BTW this thread doesn't need to be a sticky since the bug is fixed.