Verification images - WTF?

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  • JMM
    Confirmed User
    • Apr 2001
    • 1755
    #1

    Verification images - WTF?

    I totally understand the concept behind these things, quite brilliant actually, would love to own the patent on that....

    What I do not understand is why some places that use them make them almost impossible to read. What is the point of that?

    If you don't know what I am talking about, it's the images that appear when you are submitting a form, etc where you have to type in the letters/numbers that are in the image to verify that you are human and not a bot.
    Tags: None
    • WiredGuy
      Pounding Googlebot
      • Aug 2002
      • 34516
      #2
      Its intended to stop automated bots which means it has to be somewhat hard to read.
      WG
      I play with Google.

        Comment

        • eroswebmaster
          March 1st, 2003
          • Jul 2001
          • 20295
          #3
          Originally posted by WiredGuy
          Its intended to stop automated bots which means it has to be somewhat hard to read.
          WG
          Somewhat? LOL...there are some out there that I can't read to save my life.
          It reminds me of the NBA Jam game on the old Nintendo, the passwords when you got to a new level would be like 18-36 digits long...not like we were breaking into the NSA or anythign...LOL it was just a silly game.
          For rent - ICQ 127-027-910
          Click here for more details

            Comment

            • brand0n
              been very busy
              • Nov 2002
              • 26983
              #4
              captchas to all us laymen
              want to buy this spot for cheap? it is of course for sale. long term deals are always the best bet. brand0n/ at/ a o l dot commies.

                Comment

                • D
                  Confirmed User
                  • Jan 2006
                  • 7412
                  #5
                  Yeah - I know whatcha mean.

                  When you gotta ask yourself "Is that a 'Q' or a 'W'?" you know you're in trouble.
                  -D.
                  ICQ: 202-96-31

                    Comment

                    • tranza
                      ICQ: 197-556-237
                      • Jun 2003
                      • 57559
                      #6
                      Just refresh the pages a few times until you get an easy one...
                      I'm just a newbie.

                        Comment

                        • JMM
                          Confirmed User
                          • Apr 2001
                          • 1755
                          #7
                          Originally posted by WiredGuy
                          Its intended to stop automated bots which means it has to be somewhat hard to read.
                          WG

                          Ahhh, so the bots can read the images? I did not know that. How in the world does a bot read a graphic?

                            Comment

                            • D
                              Confirmed User
                              • Jan 2006
                              • 7412
                              #8
                              Originally posted by JMM
                              Ahhh, so the bots can read the images? I did not know that. How in the world does a bot read a graphic?
                              Play with the tool located here:

                              http://www.myfonts.com/WhatTheFont/

                              and you'll get an idea of the level of available technology.
                              -D.
                              ICQ: 202-96-31

                                Comment

                                • arial
                                  Confirmed User
                                  • Jul 2002
                                  • 4012
                                  #9

                                    Comment

                                    • GeXus
                                      Confirmed User
                                      • May 2003
                                      • 3320
                                      #10
                                      Originally posted by JMM
                                      Ahhh, so the bots can read the images? I did not know that. How in the world does a bot read a graphic?
                                      Contrasts... You can get coordinates of varying degrees of contrasts in an image and determine a letter based on what the coordinates draw

                                        Comment

                                        • TCAP
                                          Confirmed User
                                          • Dec 2006
                                          • 222
                                          #11
                                          http://en.wikipedia.org/wiki/Captcha
                                          A number of research projects have attempted (often with success) to beat visual CAPTCHAs by creating programs that contain the following functionality:

                                          Extraction of the image from the web page.
                                          Removal of background clutter, for example with color filters and detection of thin lines.
                                          Segmentation, i.e. splitting the image into segments containing a single letter.
                                          Identifying the letter for each segment.
                                          Steps 1, 2, and 4 are easy tasks for computers. The only part where humans still outperform computers is segmentation. If the background clutter consists of shapes similar to letter shapes, and the letters are connected by this clutter, the segmentation becomes nearly impossible with current software. Hence, an effective CAPTCHA should focus on the segmentation.

                                            Comment

                                            • PornGeneral
                                              Confirmed User
                                              • Sep 2004
                                              • 564
                                              #12
                                              The bots use "OCR" or optical character recognition to read the image file that is created. That is why the characters are so "randomized" and splashed with background noise. But yes some webmasters go a little overboard, after all no matter how much they try anything can be hacked... ;)
                                              "The object of war is not to die for your country but to make the other bastard die for his." -Patton
                                              "Only the dead have seen the end of war." -Plato

                                                Comment

                                                • EdgeXXX
                                                  Confirmed User
                                                  • Oct 2005
                                                  • 5816
                                                  #13
                                                  What I don't understand is why some Sponsors use them on the Affiliate sign-in.
                                                  .
                                                  .
                                                  .
                                                  .
                                                  I have a sig

                                                    Comment

                                                    • GeXus
                                                      Confirmed User
                                                      • May 2003
                                                      • 3320
                                                      #14
                                                      Originally posted by EdgeXXX
                                                      What I don't understand is why some Sponsors use them on the Affiliate sign-in.
                                                      It's just the "cool" factor.

                                                        Comment

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