Is there any good CAPTCHA character segmentation algorithm?

currently only know the scan line algorithm (that is, the up and down, left and right scan), but the effect is not very ideal. I don"t know if there are any other good algorithms.


1. Dripping algorithm
2. Flooding filling method
3. It can also be based on the direct end-to-end verification and recognition technology of CNN convolution neural network

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MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2c0b5-2bac8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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