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skotz / cbl-js

JavaScript CAPTCHA solving library
MIT License
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How to solve this kind of captcha with thick strike-through line #27

Closed piptan closed 6 years ago

piptan commented 6 years ago

I tried several methods for this kind of captcha -

image image image

I can not achieve it.

image image image

skotz commented 6 years ago

This CAPTCHA uses multiple fonts and has a line through the letters that's the same color and thickness as the letters, so it'll be a hard one to crack with the limited methods I currently have in the library.

If you really wanted to pursue this, you could extend the library to detect and remove the semi-horizontal lines. With a little searching you should be able to find some research where this has been done before.

Once the lines are removed, it'll be simple to recognize the letters since there will always be exactly 6 characters with no distortion.

piptan commented 6 years ago

Thank you. I will do some research.