java image blocks comparison

| *One line summary* | Based on the blog entry: [http://mindmeat.blogspot.com/2008/07/java-image-comparison.html] it can be shown that a basic jpg image comparision can be achieved with just a few lines of code.                                                                                                                 |
| *Detailed description* | If the tool compares: \\
\\ !1.jpg|thumbnail,border=1!\\
\\
with \\
\\ !2.jpg|thumbnail,border=1!\\
\\
it outputs an image with the differences \\
\\ !changes.jpg|border=1!\\
\\
by calculating the difference between the average brightness of the boxes: \\
\\
\|21,20,16,0,1,0,0,0\| \\
\|0,0,0,0,0,0,0,0\| \\
\|0,1,0,0,0,0,0,0\| \\
\|0,0,1,0,1,1,0,1\| \\
\|0,0,0,0,1,1,1,0\| \\
\|0,1,0,0,0,0,1,1\| \\
\\
If the difference in at least one box has passed the threshold value it outputs false.Match: false \\ |
| *Solution champion* | Georg Petz |