3 ms·

By robustness I mean the brain is pretty hard to exploit. You can't trick it into thinking an image is pornographic just by changing the color balance.

chriswarbo 12y ago
> The brain is pretty hard to exploit. No it's not, just ask any advertiser. > You can't trick it into thinking an image is pornographic just by changing the color balance. If the only data someone has about an image is its colour balance and you asked them to classify which they think are pornographic, then yes you can. It's a pretty stupid idea to impose such limitations though, on humans or ANNs. Even if you did only care about colour balance, you don't need an ANN to tell you that; just scale the image down to 1 pixel x 1 pixel, then look at its colour.
- alextgordon 12y ago
  > > By robustness I mean the brain is pretty hard to exploit. You can't trick it into thinking an image is pornographic just by changing the color balance. > No it's not, just ask any advertiser. One of the great things about humans is that they can consider the context of a remark, although apparently this is not universal.
  - abandonliberty 12y ago
    Maybe it's an AI.
vidarh 12y ago
There's an entire subreddit devoted to a technique for fooling the brain into thinking an image is pornographic by overlaying patterns that obscures clothed sections [1] (and at least one more about more generic optical illusions) Not quite the color balance, but how anyone can assert the brain is hard to exploit is beyond me. [1] it's this technique - links is probably nsfw: https://richardwiseman.wordpress.com/2010/09/07/naked-women-illusion/ https://richardwiseman.wordpress.com/2010/09/07/naked-women-... - I don't remember the name of the subreddit.
kylegrove 12y ago
The phenomena outlined in http://en.wikipedia.org/wiki/Optical_illusion http://en.wikipedia.org/wiki/Optical_illusion would seem to instantly belie the claim in your first sentence.
jayvanguard 12y ago
> By robustness I mean the brain is pretty hard to exploit. As others have pointed out, the complete opposite is true.
rasz_pl 12y ago
http://4.bp.blogspot.com/-dUHs2FI_izg/UTC7OQLDy7I/AAAAAAABhJE/sUnlwyXmnfw/s1600/sexy-optical-illusions-1.jpg http://4.bp.blogspot.com/-dUHs2FI_izg/UTC7OQLDy7I/AAAAAAABhJ... https://richardwiseman.files.wordpress.com/2010/12/161cq.jpg https://richardwiseman.files.wordpress.com/2010/12/161cq.jpg http://clampd.com/wp-content/uploads/2014/07/optical-illusions-that-prove-you-have-a-dirty-mind1254165532-apr-14-2014-1-600x500.jpg http://clampd.com/wp-content/uploads/2014/07/optical-illusio...

chriswarbo 12y ago

> The brain is pretty hard to exploit. No it's not, just ask any advertiser. > You can't trick it into thinking an image is pornographic just by changing the color balance. If the only data someone has about an image is its colour balance and you asked them to classify which they think are pornographic, then yes you can. It's a pretty stupid idea to impose such limitations though, on humans or ANNs. Even if you did only care about colour balance, you don't need an ANN to tell you that; just scale the image down to 1 pixel x 1 pixel, then look at its colour.

alextgordon 12y ago
> > By robustness I mean the brain is pretty hard to exploit. You can't trick it into thinking an image is pornographic just by changing the color balance. > No it's not, just ask any advertiser. One of the great things about humans is that they can consider the context of a remark, although apparently this is not universal.
- abandonliberty 12y ago
  Maybe it's an AI.

vidarh 12y ago

There's an entire subreddit devoted to a technique for fooling the brain into thinking an image is pornographic by overlaying patterns that obscures clothed sections [1] (and at least one more about more generic optical illusions) Not quite the color balance, but how anyone can assert the brain is hard to exploit is beyond me. [1] it's this technique - links is probably nsfw: https://richardwiseman.wordpress.com/2010/09/07/naked-women-illusion/ https://richardwiseman.wordpress.com/2010/09/07/naked-women-... - I don't remember the name of the subreddit.

kylegrove 12y ago

The phenomena outlined in http://en.wikipedia.org/wiki/Optical_illusion http://en.wikipedia.org/wiki/Optical_illusion would seem to instantly belie the claim in your first sentence.

jayvanguard 12y ago

> By robustness I mean the brain is pretty hard to exploit. As others have pointed out, the complete opposite is true.

rasz_pl 12y ago

http://4.bp.blogspot.com/-dUHs2FI_izg/UTC7OQLDy7I/AAAAAAABhJE/sUnlwyXmnfw/s1600/sexy-optical-illusions-1.jpg http://4.bp.blogspot.com/-dUHs2FI_izg/UTC7OQLDy7I/AAAAAAABhJ... https://richardwiseman.files.wordpress.com/2010/12/161cq.jpg https://richardwiseman.files.wordpress.com/2010/12/161cq.jpg http://clampd.com/wp-content/uploads/2014/07/optical-illusions-that-prove-you-have-a-dirty-mind1254165532-apr-14-2014-1-600x500.jpg http://clampd.com/wp-content/uploads/2014/07/optical-illusio...