Metal Captcha • Hacker News Board

Re: Metal Captcha

#21

Post by midhir » Tue, Jul 28, 2015, 1:38 PM UTC

Noticed a bug. Murderdolls and The Black Dahlia Murder are included as 'metal'.

Re: Metal Captcha

#22

Post by ajanuary » Tue, Jul 28, 2015, 1:38 PM UTC

artmageddon wrote: post #19

Some of these are so hard to read that I feel like this is better served as a puzzle rather than a CAPTCHA service. Having said that, I do think if you were to take one of these band logos and put one next to a picture of a cat and ask "WHICH ONE IS MORE METAL???", then you'd be on to something. ;)

Pick the one with the most black?

Re: Metal Captcha

#23

Post by pornel » Tue, Jul 28, 2015, 1:45 PM UTC

// edit: sense of humour failure. I care too much about blocking spam :)

Sorry, but this is harder for humans than bots.

The logos are quite distinct and not randomly deformed, so it's easy for even a simple image recognition algorithms to tell them apart.

And the set is very small (for this problem anything smaller than millions is very small), so it's feasible to manually tag enough images for bots to brute force it.

Re: Metal Captcha

#24

Post by linuxlizard » Tue, Jul 28, 2015, 1:45 PM UTC

deadmik3 wrote: post #11

I guess this would be a good way to keep people that aren't hardcore enough out of my online metal community...

And people above a certain age! ;-)

Re: Metal Captcha

#25

Post by linuxlizard » Tue, Jul 28, 2015, 1:46 PM UTC

gagege wrote: post #8

hasslein wrote: post #2

This makes me happy. Woe unto the person that receives a string of completely unreadable band logos, though. Obligatory: http://www.metalsucks.net/category/completely-unreadable-ban...

The most recent one looks like "Wood Pestilence", haha. But I can't find a band with that name, so it must be wrong.

Is a good band name, though.

Re: Metal Captcha

#26

Post by ipsin » Tue, Jul 28, 2015, 1:50 PM UTC

It took me a while to figure out that blocking cookies means I get the failure message for the CAPTCHAs even if I guess correctly.

Re: Metal Captcha

#27

Post by dlsym » Tue, Jul 28, 2015, 1:51 PM UTC

linuxlizard wrote: post #24

deadmik3 wrote: post #11

I guess this would be a good way to keep people that aren't hardcore enough out of my online metal community...

And people above a certain age! ;-)

Or people below a certain age.

Re: Metal Captcha

#28

Post by Untit1ed » Tue, Jul 28, 2015, 1:52 PM UTC

gagege wrote: post #4

I saw one that was like some curves and lines and it clearly spelled out "dip", but apparently that was wrong! I really want to know what that one was.

Sounds like the Devin Townsend Project (DTP) http://www.devintownsend.com/images/sprites/dtp_logo_links.j...

You see the d and the p kinda link together to cross the t, it's quite a neat logo when you think about it.

Re: Metal Captcha

#29

Post by orng » Tue, Jul 28, 2015, 1:58 PM UTC

ajanuary wrote: post #22

artmageddon wrote: post #19

Some of these are so hard to read that I feel like this is better served as a puzzle rather than a CAPTCHA service. Having said that, I do think if you were to take one of these band logos and put one next to a picture of a cat and ask "WHICH ONE IS MORE METAL???", then you'd be on to something. ;)

Pick the one with the most black?

This could potentially be combated by greyscaling the cat image. Or filling the band logo with bright colors...

Re: Metal Captcha

#30

Post by colinbartlett » Tue, Jul 28, 2015, 1:58 PM UTC

pornel wrote: post #23

// edit: sense of humour failure. I care too much about blocking spam :) Sorry, but this is harder for humans than bots. The logos are quite distinct and not randomly deformed, so it's easy for even a simple image recognition algorithms to tell them apart. And the set is very small (for this problem anything smaller than millions is very small), so it's feasible to manually tag enough images for bots to brute force i…

I agree and thought the whole thing was a joke? A satire on the illegibility of metal band logos?