Update README.md

README.md

@@ -11,4 +11,16 @@ tags:
 pretty_name: Outlined Text Captcha Images
 size_categories:
 - 1K<n<10K
----
+---
+
+This image collection was web scrapped from a single site. It comes from the SimpleCaptcha library which uses a variety of formats including this one: outlined alphanumeric characters with a stroke.
+
+Horizontal Gradient.
+RGB Channels.
+JPG Format.
+5 characters.
+Characters may repeat.
+Numeric and lowercase alphanumeric.
+Alpha: a b c d e f g h k m n p r v w x y (17 unique) Number: 2 3 4 5 6 7 8 9 (8 unique) Total chars = 25 unique characters
+
+This dataset intends to help improve security on websites. Visit Simple Captcha Library Website.