---
license: apache-2.0
---

# Note
Captcha images are presented as base64 string.
All csv files have a "\t" separator.

# Dataset consists of several files
## fssp_*.csv

I am publishing an updated version of the archive of 40,310 pictures, which I have divided into 4 categories:
- 4 symbols on the picture - 6 747 pcs.
- 5 symbols - 18 403 pcs.
- 6 characters - 7,038 pcs.
- 7 characters - 7 589 pcs.

Symbols used in captcha
'б','в','г','д','ж','к','л','м','н','п','р','с','т','2','4','5','6','7','8','9'


# fms.csv

About 15 thousand captcha imgs, which consists of 6 numbers.


# rosreestr.csv

About 10 thousand captcha, which consists of English characters and numbers with a length of 5 elements.

# vk.csv

About 19 thousand captcha, which consists of Russian characters and numbers from 5 to 6 elements long. Images from social network vk.com