I am Using Selenium RC in C# My application has 3 Captha image in Different registration pages. i have a Huge script i will run it on night hours(when i am off). Hence i feel it will be better if i can capture the last displaying captcha image value and store it in to a variable so that i can input on the relevant field. Is it Possible ?
For testing purposes you will need to send the captcha value in a machine readable manner, by sending it as an additional field. You would then need to remove the field after the tests are done.
A Captcha cannot be automated that easily. That is why they were invented!!
Alas... You can use code hackers and Image Recognition patterns and scripts. It is called OCR. http://en.wikipedia.org/wiki/Optical_character_recognition
I will not write more about this as i wont encourage others for hacking ideas. But... First: Google is your friend. Second: In my testing environment we used a captcha with a static value. And then before it went live we removed set it again for the algorithm.
Gergely.
Have a hidden field (with a non-obvious name) that contains a strongly encrypted copy of the text used in the captcha then on your selenium test system decode it using the private key?