Category:Captcha

**CAPTCHA**
	computer test to discriminate human users from spambots The distorted (non)word 'smwm' is used with the presumption that computer vision will not be able to read it with sufficient efficiency, but a human will.
	Upload media
	Wikipedia Wikibooks
Instance of	access control;
Has use	discrimination (human or Internet bot);
Inception	2000;
Different from	reCAPTCHA;
	official website
Authority file
	Q484598; GND ID: 4828986-3; Library of Congress authority ID: sh2009002990; Bibliothèque nationale de France ID: 17001362r; IdRef ID: 189468181; National Library of Israel J9U ID: 987007542910105171
	Reasonator; Scholia; Wikidocumentaries; PetScan; statistics; WikiMap; Locator tool; KML file; Search depicted;

Subcategories

This category has only the following subcategory.

R

ReCAPTCHA‎ (16 F)

Media in category "Captcha"

The following 75 files are in this category, out of 75 total.

12306验证码模拟.jpg 893 × 542; 129 KB
12306验证码界面めん（模かたぎ拟）.jpg 948 × 585; 516 KB
5k3tC40A - CAPTCHA images.png 512 × 256; 49 KB
7MWL9SDp - CAPTCHA images.png 512 × 256; 33 KB
A8examplecaptcha.png 1,366 × 768; 12 KB
Bad captcha.png 290 × 80; 24 KB
BibotLogo.svg 400 × 160; 165 KB
BLPDGAF.jpg 382 × 257; 31 KB
CAPTCHA Causal Digram.png 4,575 × 1,683; 284 KB
Captcha early.JPG 570 × 396; 45 KB
Captcha example.png 367 × 379; 24 KB
CAPTCHA fa.jpg 3,505 × 2,482; 1.23 MB
CAPTCHA headshits.jpg 1,024 × 768; 67 KB
Captcha phpbb2.png 244 × 50; 17 KB
Captcha phpbb3.png 361 × 96; 5 KB
CAPTCHA test.png 652 × 532; 80 KB
Captcha voorbeeld.jpg 240 × 86; 5 KB
CAPTCHA wikibook.png 167 × 58; 9 KB
CAPTCHA wikipedia.JPG 805 × 543; 66 KB
Captcha zine.JPG 4,000 × 2,672; 4.18 MB
Captcha-Schikane.png 1,365 × 529; 53 KB
Captcha-smwm.svg 230 × 70; 6 KB
Captcha-unreadable.png 150 × 35; 5 KB
Captcha.jpg 290 × 80; 12 KB
Captcha.ogg 3.5 s; 12 KB
Captcha.png 144 × 24; 6 KB
Captcha.svg 290 × 80; 1.24 MB
Captcha1.jpg 66 × 26; 4 KB
Captcha2.jpg 165 × 72; 3 KB
Captcha3.jpg 66 × 26; 4 KB
Captcha4.jpg 66 × 26; 4 KB
Captcha7.jpg 66 × 26; 4 KB
CaptchaExample.png 293 × 169; 15 KB
CAPTCHAfa sample1.jpg 159 × 160; 7 KB
CAPTCHAfa sample2.jpg 157 × 160; 5 KB
CAPTCHAfa sample3.jpg 159 × 160; 6 KB
CAPTCHAfa sample4.jpg 160 × 159; 8 KB
CAPTCHAfa sample5.jpg 157 × 160; 6 KB
CATCHA da 080921.jpg 791 × 662; 44 KB
CCAtpAH - CAPTCHA images.png 512 × 256; 43 KB
Clipartcaptcha.png 1,366 × 768; 12 KB
Commons register2 create account fr.png 488 × 297; 28 KB
Dcincide captcha.jpg 200 × 200; 22 KB
Delarub.png 100 × 35; 634 bytes
Doteli wiki help.jpg 381 × 684; 56 KB
DY CAPTCHA example.jpg 768 × 384; 49 KB
FancyCaptcha screenshot.png 462 × 255; 17 KB
Funny1.png 538 × 537; 75 KB
Funny2.png 563 × 563; 86 KB
Hintergrund-captcha5.gif 200 × 50; 9 KB
HTUOnaMorB - CAPTCHA images.png 512 × 256; 48 KB
KCAPTCHA with crowded symbols.gif 290 × 60; 9 KB
L88rB6 - CAPTCHA images.png 512 × 256; 63 KB
Nice- 2014-02-09 13-53.jpg 200 × 70; 3 KB
OGBMbY4 - CAPTCHA images.png 512 × 256; 48 KB
Panorama-captcha-idea.png 1,701 × 613; 363 KB
Phase 1 of security level.png 1,728 × 1,224; 1.32 MB
Phase 2 of security level.png 1,728 × 1,440; 2.19 MB
Phase 3 of security level.png 1,728 × 1,440; 1.82 MB
Phase 4 of security level.png 1,728 × 1,440; 1.83 MB
Phase 5 of security level.png 1,728 × 1,440; 1.64 MB
Puffylens.png 243 × 63; 9 KB
Qv50mg - CAPTCHA images.png 512 × 256; 28 KB
RainCaptcha ExtrudeRenderer.png 434 × 114; 19 KB
ReCAPTCHA idea.jpg 314 × 235; 19 KB
Rechen-captcha.jpg 190 × 75; 11 KB
Reverse-CAPTCHA.png 1,114 × 1,550; 570 KB
RifflexRegister.png 1,145 × 485; 39 KB
RNjcV5 - CAPTCHA images.png 512 × 256; 32 KB
S075Uv - CAPTCHA images.png 512 × 256; 24 KB
Screenshot of CAPTCHA on login error with refresh button.png 851 × 606; 72 KB
Wikicaptcha.pdf 1,654 × 1,239, 11 pages; 1,000 KB
Wikipedia CAPTCHA.jpg 1,080 × 2,220; 366 KB
中ちゅう文ぶんCaptcha.png 300 × 100; 9 KB
中ちゅう文語ぶんご音おんCaptcha.ogg 8.0 s; 194 KB

Category:Captcha

Subcategories

R

Media in category "Captcha"

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