CAPTCHA Images

此数据集包含CAPTCHA（完全自动化的公共Turing测试，以区分计算机和人类）图像。建于1997年，供用户识别和阻止漫游器（以防止垃圾邮件，DDOS等）。从那时起，它们被reCAPTCHA取代，因为它们可以使用人工智能（如我所鼓励的那样）破坏。

This dataset contains CAPTCHA (Completely Automated Public Turing Test to Distinguish Between Computers and Humans) images. It was developed in 1997 to help users identify and block bots, so as to prevent spam, DDoS attacks and other malicious activities. Since then, these CAPTCHA systems have been replaced by reCAPTCHA, as they can be compromised using artificial intelligence, as I have encouraged.

搜集汇总

背景与挑战

背景概述

该数据集包含1997年创建的CAPTCHA（全自动区分计算机和人类的图灵测试）图像，旨在通过识别和阻止机器人来防止垃圾邮件和DDOS攻击。图像为200x50像素的PNG格式，显示含数字的五字母单词，并添加了模糊和线条等噪点效果，现已被reCAPTCHA取代。