We do hope that you will stay for a long time. Enjoy your stay as we work to become the best Naruto info site out there. BELIEVE IT!
If you're looking for something to do why not look over the Forums or more specifically Narutopedia Collaboration for a list of projects we're working on. And the Community portal has a lot of recent discussions and places to go listed on it.
About your question. Looks like you did the same work as the fan-manga scanners do, they attempt to clean the scans to become more clear and attractive somehow. The reason for my revert is when the tankōbon images are uploaded, these images would be the standard ones, you could edit them by modifying the brightness and contrast level a little bit but not that much ... However, you did a great job and I appreciate it. Thanks for your co-operation and sorry for the late reply. (Contact) 20:56, September 10, 2013 (UTC)