A brief introduction about CAPTCHA
ACAPTCHA is a type of challenge-response test used in computing as an attempt to ensure that the response is generated by a human being and not a robot. The process involves a computer asking a user to complete a simple test which the computer is able to grade. These tests are designed to be easy for a computer to generate but difficult for a computer to solve it, but again easy for a human. If a correct resolution is received, it can be presumed to have been entered by a human. A common type of CAPTCHA requires the user to type digits and/or letters from a distorted image that appears on the screen. Such tests are commonly used to prevent unwanted internet robot from accessing websites, since a normal human can easily read a CAPTCHA, while the robot cannot process the image letters and therefore, cannot answer properly, or at all.
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Although most CAPTCHAs are letter pictures randomly generated, many of them have become difficult even for a human to read it, so pictures of CAPTCHA were created in which a human is shown a simple test to show a picture of an certain animal, which is simple for a human being to process, and therefore easy to pick, while a robot cannot process and solve the question because although it can analyze the picture, it cannot easily guess. Read more
We are here to provide you:
People who are blind, colour blind or have other vision-related issues...
How does it work?
A CAPTCHA image shows a random string which the user has to type to submit a form. This is a simple problem for (seeing) humans, but a very hard problem for computers which have to use character recognition, especially, because the displayed string is alienated in a way, which makes it very hard for a computer to decode...
Where can I register for this service?
For user our captchaclick Services and test, please complete our registration process...
WHY WE ?
- People who are blind, colour blind or have other
- Individuals with dyslexia (difficulty in reading).
- People of old age.
- People with developmental disabilities.
Because CAPTCHA relies on visual perception, users unable to view a CAPTCHA due to a disability will be unable to perform the task protected by a CAPTCHA. The groups who commonly struggle with visual CAPTCHA are: