An Algorithm for Nudity Detection [pdf]
vidcat.org
An Algorithm for Nudity Detection [pdf]
1–10 of 24 posts
Re: An Algorithm for Nudity Detection [pdf]
#2Does anybody know if there is an API that does this?
Re: An Algorithm for Nudity Detection [pdf]
#3how do these nudity detection API work? Is there a crowdsourcing going underneath the hood? Are they using some clustering algorithm to detect a range of skin color (if 90%), it's nude.
Re: An Algorithm for Nudity Detection [pdf]
#4how do these nudity detection API work? Is there a crowdsourcing going underneath the hood? Are they using some clustering algorithm to detect a range of skin color (if 90%), it's nude.
If you click the text "An Algorithm for Nudity Detection [pdf]", that's actually a link.
Re: An Algorithm for Nudity Detection [pdf]
#5how do these nudity detection API work? Is there a crowdsourcing going underneath the hood? Are they using some clustering algorithm to detect a range of skin color (if 90%), it's nude.
Protip: If you film pornography in black and white, there is no such thing as "skin color."
If you remap the palette for a desaturated image, so that everyone's skin is green or magenta, are there any fewer penises penetrating vaginas in the image? If it's a horse and a fully clothed person's mouth, where is the algorithm for that?
Think about it.
Re: An Algorithm for Nudity Detection [pdf]
#6direct link: http://onebit.us/x/i/814381733331796005.pdf
Re: An Algorithm for Nudity Detection [pdf]
#7how do these nudity detection API work? Is there a crowdsourcing going underneath the hood? Are they using some clustering algorithm to detect a range of skin color (if 90%), it's nude.
The link that you just commented on answers your question in literally the best way possible, it's an academic paper on an algorithm used for this.
Re: An Algorithm for Nudity Detection [pdf]
#8This could only be a very rough first-pass on detection. Bathing suits can be very skimpy without being fully nude.
And social context plays a large role, for instance distinguishing between a fat male's nipples and a small-chested female's nipples would be impossible without analyzing a lot more than skin color.
Re: An Algorithm for Nudity Detection [pdf]
#9When I was in the advertising business, one of the core products I created was a brandsafety product - basically preventing advertisers from advertising on dodgy sites.
I messed around with algorithms that detected nudity (because big brand advertisers don't want their ads showing up on porn sites). One of the more interesting and simple-to-use one is actually a simple averaging of the images across multiple samples. That one was easy to implement and has relatively good results.
In the end though, I ended up not using it because text clustering algorithms worked better in classifying content.
Re: An Algorithm for Nudity Detection [pdf]
#10Seems like a not very scalable approach to the problem. I would think if you wanted to capture all nudity (including monochromatic or illustrated), you would instead go at the problem from the angle of titillation. You could even round up images that are not necessarily human based (fruit arranged provocatively, for instance).