On 05/03/2020 13:52, Charlie Roberts wrote:
<snip>
What is reverse image search .... or, rather, how do you do it?
Go to, say, tineye.com and upload an image. Then it will tell you where
that image appears on the Web - in theory.
I just tried it for the first time. I gave it a PNG I'd created, a LaTeX-processed representation of the expression 8 pi r³ / 3 (volume of
two spheres, i.e. balls). It came back with just one result - a
similarly LaTeX-processed rep, except that this one was:
E = 2/3 pi r³ rho (R nu₁ / D)²
which doesn't look anything like balls.
Then I tried a slightly fairer test: a stock image of a bowl of
cherries. It came up with several copies of the same image, some
watermarked (in different ways) and some not, which I found impressive.
It also showed me a bunch of similar images - different bowls of
different cherries - which I found even more impressive because it
showed a basic "understanding" of what the picture represented, rather
than a simple pixel-based comparison.
--
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within
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