New Robot Vs Human Validation: Slide To Fit Captcha

[6Foot2]

Link: minteye Products

 

I like the idea but I found that I could pass as human even if I had not [deliberately] fully straightened the image offered. A work in progress I guess.

[6Foot2]

re Captcha helps to digitise books [TedTalk]

 

[hawc]

Ah, another blow to mobile users.....

[synaesthesia]

Recaptcha, digitising books. How, though? Because surely to confirm it's correct it's needs to verify against a source... (I've known this for donkies but never looked this bit up)

[6Foot2]

Recaptcha, digitising books. How, though? Because surely to confirm it's correct it's needs to verify against a source... (I've known this for donkies but never looked this bit up)

 

This is covered in the video at about this point:

 

4s

 

[Time: Approximately 4 minutes 20 seconds in case the copy/paste at current time does not work: Looks like it hasn't]

[plexer]

If 100 people type a fuzzy bit of scanned text as jumper and 2 type it as slumper then it's probably jumper.

 

Ben

[synaesthesia]

What about the majority of the text though? I mean the 1/100 words that can actually be typed?

I've always thought it was a secret ploy - no books are being decyphered, the NHS are just conning us into translating doctor's notes for them.

[plexer]

The others are known words allready and are there as a check.

 

Ben

[Arthur]

This won't stop the CAPTCHA farmers.

[Arthur]

A work in progress I guess.

Not to mention fundamentally flawed...

 

Breaking the MintEye image CAPTCHA in 23 lines of Python

 

In conclusion, it would seem this method of image based CAPTCHA is fundamentally flawed. A simple ‘swirl’ operation will always be detectable by this method, no matter the image being swirled. The increased sharpness also gives the game away – an FFT or autocorrelation could easily be used to detect this change in sharpness, just like autofocus algorithms.