readme: removed reference to unimplemented provider
Signed-off-by: hrj <harshad.rj@gmail.com>
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@ -104,11 +104,8 @@ An image of a random string of alphabets is created. Then a series of image filt
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### PoppingCharactersCaptcha
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![PoppingCharacters Sample](./samples/popping.gif)
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### BlurCaptcha
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An image of a word is blurred before being shown to the user.
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### LabelCaptcha
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This providers takes in two sets of images. One with known labels, and the other unknown.
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This CAPTCHA provider takes in two sets of images. One with known labels, and the other unknown.
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The created image has a pair of words one from each set.
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The user is tested on the known word, and their answer to the unknown word is recorded.
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If a sufficient number of users agree on their answer to the unknown word, it is transferred to the list of known words.
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