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Can google detect duplicate images?

by Danny Woolard
5 replies
  • SEO
    • |
For 2 reasons:

#1) You're trying to rank an image

#2) Google might give less weight to a site that repastes duplicate images.


You think Google is advanced enough to detect a duplicate image if you rename it?

Some easy workaround would be to

a) resize image
b) invert image
c) change shading
#detect #duplicate #google #images
  • Profile picture of the author nicktyler
    I think if you changed the info and size etc you would be fine as Google can't view the image. There must be so many images on the net with all identical info file size dimensions, resolution etc... that are a completly different picture it would be a very tough call. If they can't do it they are working on it.
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  • Profile picture of the author Nelapsi
    2 seconds in photoshop and Google will never stand a chance, just a minor adjustment is all it takes and any checking Google does will come up as a different image.
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    • Profile picture of the author Carl Brown
      Originally Posted by Nelapsi View Post

      2 seconds in photoshop and Google will never stand a chance, just a minor adjustment is all it takes and any checking Google does will come up as a different image.
      It's not as easy as you think. Try it with photoshop and check your "new" image on tineye. It finds them. I have no idea if Google bothers to actually "recognize" copyrighted images, but they do have the ability.

      You need to do a lot more than resize the image.Tineye recognizes an image. I don't think they have abilities Google doesn't have. There's also image data that you have to remove. There's a program called QuickFix that'll do that for you.

      Here's another way from labnol.org using Windows Explorer:
      Select all the images files, right click and choose Properties. Now hit the Details tab and click on the “Remove Properties and Personal Information” link. The next screen will give you an option to remove the various metadata that is embedded inside the pictures. Simple.
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  • Profile picture of the author fanta81
    Just changing the size and info would be enough.
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  • Profile picture of the author yukon
    Banned
    Originally Posted by denutza View Post

    For 2 reasons:

    #1) You're trying to rank an image

    #2) Google might give less weight to a site that repastes duplicate images.


    You think Google is advanced enough to detect a duplicate image if you rename it?

    Some easy workaround would be to

    a) resize image
    b) invert image
    c) change shading
    Google has very sophisticated algos. for handling images, at the same time they still allow keyword stuffing, so it's kind of a mix of old & new going on when ranking images compared to ranking pages. The old is keyword stuffing, the new is their OCR scanning, Google can read text that is part of an image. I'm talking about text presented as part of an image (not Alt-text). Google obviously can also read image Alt-text, but they do a lot more than read plain text when ranking images.

    I've ranked a lot of images & have tested a lot of different things with images, these things won't work with Google:

    a) resize image
    b) invert image
    c) change shading

    A) Here's proof that re-sizing an image means nothing to Google:
    car insurance - Google Search



    B) Here's proof that inverting an image means nothing to Google:
    Google Search by Image











    C) I don't have an example for changing image shading, but you can easily test that yourself. I think Google is smarter than that (image shading).



    An easy way to rank for multiple keywords is to surround the image with relevant keywords.

    Example:
    • low cost insurance (plain text)
    • car insurance (image Alt-text)
    • insurance for teen drivers (plain text)

    This way you target 3 keyword phrases with a single image, on a single webpage.

    Next, build internal links pointing at the page with the image for all 3 keyword phrases. You should see Google Images displaying the single image for all 3 keyword phrases.
    • low cost insurance
    • car insurance
    • insurance for teen drivers
    There's a few more tactics you can use, like dominating all of the thumbnail images in Google organic text SERPs. Nothing better than ranking 1-2 pages & 4-5 images on the 1st page of Google text SERPs for a single keyword.
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