*chan image dumper with recaptcha support

Are there any *chan image dumpers that will dump in the background, only popping up with a captcha dialog?  Something similar to JDownloader, which does this when a captcha must be entered:

http://www.newwebstar.com/uploads/posts/2009-02/thumbs/1235508120_aaa.jpg

>>1
There is. I know because I have written it. But since I'd hate to unleash a flood of shitposters like you on 4chan, I must respectfully decline to disclose the location of said program.