<s>
TinEye	B-General_Concept
is	O
a	O
reverse	B-General_Concept
image	I-General_Concept
search	I-General_Concept
engine	O
developed	O
and	O
offered	O
by	O
Idée	O
,	O
Inc.	O
,	O
a	O
company	O
based	O
in	O
Toronto	O
,	O
Ontario	O
,	O
Canada	O
.	O
</s>
<s>
It	O
is	O
the	O
first	O
image	O
search	B-Application
engine	I-Application
on	O
the	O
web	O
to	O
use	O
image	O
identification	O
technology	O
rather	O
than	O
keywords	O
,	O
metadata	O
or	O
watermarks	B-General_Concept
.	O
</s>
<s>
TinEye	B-General_Concept
allows	O
users	O
to	O
search	O
not	O
using	O
keywords	O
but	O
with	O
images	O
.	O
</s>
<s>
Upon	O
submitting	O
an	O
image	O
,	O
TinEye	B-General_Concept
creates	O
a	O
"	O
unique	O
and	O
compact	O
digital	O
signature	O
or	O
fingerprint	O
"	O
of	O
the	O
image	O
and	O
matches	O
it	O
with	O
other	O
indexed	O
images	O
.	O
</s>
<s>
While	O
computer	O
vision	O
and	O
image	O
identification	O
research	O
projects	O
began	O
as	O
early	O
as	O
the	O
1980s	O
,	O
the	O
company	O
claims	O
that	O
TinEye	B-General_Concept
is	O
the	O
first	O
web-based	O
image	O
search	B-Application
engine	I-Application
to	O
use	O
image	O
identification	O
technology	O
.	O
</s>
<s>
In	O
June	O
2014	O
,	O
TinEye	B-General_Concept
claimed	O
to	O
have	O
indexed	O
more	O
than	O
five	O
billion	O
images	O
for	O
comparisons	O
.	O
</s>
<s>
As	O
of	O
June	O
2022	O
,	O
TinEye	B-General_Concept
's	O
search	B-Application
results	I-Application
claim	O
to	O
have	O
over	O
54.3	O
billion	O
images	O
indexed	O
for	O
comparison	O
.	O
</s>
<s>
A	O
user	O
uploads	O
an	O
image	O
to	O
the	O
search	B-Application
engine	I-Application
(	O
the	O
upload	O
size	O
is	O
limited	O
to	O
20	O
MB	O
)	O
or	O
provides	O
a	O
URL	O
for	O
an	O
image	O
or	O
for	O
a	O
page	O
containing	O
the	O
image	O
.	O
</s>
<s>
The	O
search	B-Application
engine	I-Application
will	O
look	O
up	O
other	O
usage	O
of	O
the	O
image	O
in	O
the	O
internet	O
,	O
including	O
modified	O
images	O
based	O
upon	O
that	O
image	O
,	O
and	O
report	O
the	O
date	O
and	O
time	O
at	O
which	O
they	O
were	O
posted	O
.	O
</s>
<s>
TinEye	B-General_Concept
does	O
not	O
recognize	O
outlines	O
of	O
objects	O
or	O
perform	O
facial	O
recognition	O
,	O
but	O
recognizes	O
the	O
entire	O
image	O
,	O
and	O
some	O
altered	O
versions	O
of	O
that	O
image	O
.	O
</s>
<s>
TinEye	B-General_Concept
has	O
shown	O
itself	O
capable	O
of	O
retrieving	O
different	O
images	O
from	O
its	O
database	O
of	O
the	O
same	O
subject	O
,	O
such	O
as	O
famous	O
landmarks	O
.	O
</s>
<s>
TinEye	B-General_Concept
is	O
capable	O
of	O
searching	O
for	O
images	O
in	O
JPEG	O
,	O
PNG	O
,	O
WebP	O
,	O
GIF	O
,	O
BMP	B-Device
and	O
TIFF	O
format	O
.	O
</s>
<s>
Results	O
generated	O
from	O
TinEye	B-General_Concept
include	O
the	O
total	O
number	O
of	O
matches	O
in	O
their	O
database	O
,	O
a	O
preview	O
image	O
,	O
and	O
the	O
URL	O
to	O
each	O
match	O
.	O
</s>
<s>
TinEye	B-General_Concept
can	O
sort	O
results	O
by	O
best	O
match	O
,	O
most	O
changed	O
,	O
biggest	O
image	O
,	O
newest	O
,	O
and	O
oldest	O
.	O
</s>
<s>
Other	O
features	O
include	O
embeddable	O
widgets	O
and	O
bookmarklets	B-Language
.	O
</s>
<s>
TinEye	B-General_Concept
has	O
also	O
released	O
their	O
commercial	O
API	B-General_Concept
.	O
</s>
<s>
TinEye	B-General_Concept
's	O
ability	O
to	O
search	B-Application
the	I-Application
web	I-Application
for	O
specific	O
images	O
(	O
and	O
modifications	O
of	O
those	O
images	O
)	O
makes	O
it	O
a	O
potential	O
tool	O
for	O
the	O
copyright	O
holders	O
of	O
visual	O
works	O
to	O
locate	O
infringements	O
on	O
their	O
copyright	O
.	O
</s>
<s>
Being	O
that	O
orphan	O
works	O
can	O
be	O
defined	O
as	O
"	O
copyrighted	O
works	O
whose	O
owners	O
are	O
difficult	O
or	O
impossible	O
to	O
identify	O
and/or	O
locate	O
,	O
"	O
the	O
use	O
of	O
TinEye	B-General_Concept
could	O
potentially	O
remove	O
the	O
orphan	O
work	O
status	O
from	O
online	O
images	O
that	O
can	O
be	O
found	O
in	O
its	O
database	O
.	O
</s>
