Few irritating captcha's - Image verification
Comments (9)"Oh God! Its irritating. Am trying to finish this form, but this image-verification is killing my time and patience. "
This is not from my mouth. This is what I have seen some user say while filling forms in few websites. The worst part is they don't understand the characters in image. Some time its so tough that they don't understand 50% of the characters. We all know that Captcha helps preventing the softwares from autofill.
Another user says
"I tried to change the captcha and whole data is lost. Again i have to re enter the data. Then once again captcha is not clear & I clicked 'show different image' and whole page refreshed and all the datas I entered was lost and I never filled the form in that website & all my friends faced the same issue."
"CAPTCHA" is an acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart", trademarked by Carnegie Mellon University. - Wikipedia
Yes - we all have experienced some way of other with different types captcha used in web. Below are some Good and Bad example of captcha.
Good Captchas - easy to understand for users
This captcha is pretty straight forward. User need no second thought.
Look at this recaptcha, its so simple and user has option to listen to audio on worst case.
Its simple & no issues in understanding the text from image.
Next two is from msn. Some images are difficult to understand, but its rare. Its also accessible for users with disabled. Even normal users can user the audio to enter the information
This is from Google. Very-very easy to understand and also easy for visually challenged.
Bad Captcha - by which user gets irritated and big loss for business
Oops - Captcha with encryption. its time consuming and prone to mistakes. And its not accessible & easy to use for visually challenged.
Below image is readable, but not accessible. No audio facility.
Ooops - not again, this captcha is bad.
facebooks captcha- few characters are difficult to understand. Below one is easy though.




