How can I solve this captcha automatically?

Question

PHP

Preferably, of course, in PHP. How to start, why push off? Noise-sprinkling was removed a bit with PHP Imagick.

Answer 1

Specifically for this captcha, the steps should be something like this
but this algorithm will only work for this captcha, because she is very simple.

Answer 2

May be useful: Removing image noise with php?

Answer 3

If you do not understand the topic "computer vision", then you will kill time in vain.
Look for something like 8 Best CAPTCHA Solvers or hire a lot of people :-)