Auto-compare pictures?

Y

Yousuf Khan

Is there a standalone program that can read in multiple picture files
and determine if they are the same thing or close to each other? There's
an online website that does something like this called, TinEye, but it
only compares online pictures to other online pictures, I'd like
something similar to compare local pictures on my on machine! This is
more than just comparing filesizes and CRC's, this actually seems know
how to visually compare the pictures.

Yousuf Khan
 
R

ray

Is there a standalone program that can read in multiple picture files
and determine if they are the same thing or close to each other? There's
an online website that does something like this called, TinEye, but it
only compares online pictures to other online pictures, I'd like
something similar to compare local pictures on my on machine! This is
more than just comparing filesizes and CRC's, this actually seems know
how to visually compare the pictures.

Yousuf Khan
Click to expand...
Since your question is hardly win7 specific, I'd suggest you try a couple
of the photography groups - alt.photography or rec.photo.digital should
get you some answers.
 
C

Char Jackson

Is there a standalone program that can read in multiple picture files
and determine if they are the same thing or close to each other? There's
an online website that does something like this called, TinEye, but it
only compares online pictures to other online pictures, I'd like
something similar to compare local pictures on my on machine! This is
more than just comparing filesizes and CRC's, this actually seems know
how to visually compare the pictures.
Click to expand...

I haven't used this myself, but it claims to do what you want and has
a free trial.

<http://www.imagecomparer.com/>
 
M

Mark Blain

Is there a standalone program that can read in multiple picture files
and determine if they are the same thing or close to each other?
There's an online website that does something like this called,
TinEye, but it only compares online pictures to other online
pictures, I'd like something similar to compare local pictures on my
on machine! This is more than just comparing filesizes and CRC's,
this actually seems know how to visually compare the pictures.

Yousuf Khan
Click to expand...
You might want to look at a general-purpose "duplicate file finder" -type
program. They can handle pictures, music or whatever, but they only work
if the file contents are byte-for-byte identical.
<http://www.techsupportalert.com/best-free-duplicate-file-detector.htm>
 
R

richard

Is there a standalone program that can read in multiple picture files
and determine if they are the same thing or close to each other? There's
an online website that does something like this called, TinEye, but it
only compares online pictures to other online pictures, I'd like
something similar to compare local pictures on my on machine! This is
more than just comparing filesizes and CRC's, this actually seems know
how to visually compare the pictures.

Yousuf Khan
Click to expand...
Search for a program called "deduper".
It compares images regardless of size.
It is quite old so I don't know if it will work on windows 7 64 bit or not.
 
J

jbm

"Yousuf Khan" wrote in message
Is there a standalone program that can read in multiple picture files
and determine if they are the same thing or close to each other? There's
an online website that does something like this called, TinEye, but it
only compares online pictures to other online pictures, I'd like
something similar to compare local pictures on my on machine! This is
more than just comparing filesizes and CRC's, this actually seems know
how to visually compare the pictures.

Yousuf Khan

--------------------------------------------------------------------------------

I use Duplicate Cleaner. It's free! And it checks any type of file for an
exact copy. You can choose a specific directory to search, or even groups of
directories, and it list ALL the identical files in the chosen directories.
It will then delete any or all of the duplicates found (user defined), and
will remove any empty folders it leaves behind when it's finished. Very good
program.

http://www.digitalvolcano.co.uk/content/duplicate-cleaner

jim
 
C

Char Jackson

"Yousuf Khan" wrote in message
Is there a standalone program that can read in multiple picture files
and determine if they are the same thing or close to each other? There's
an online website that does something like this called, TinEye, but it
only compares online pictures to other online pictures, I'd like
something similar to compare local pictures on my on machine! This is
more than just comparing filesizes and CRC's, this actually seems know
how to visually compare the pictures.

Yousuf Khan

--------------------------------------------------------------------------------

I use Duplicate Cleaner. It's free! And it checks any type of file for an
exact copy. You can choose a specific directory to search, or even groups of
directories, and it list ALL the identical files in the chosen directories.
It will then delete any or all of the duplicates found (user defined), and
will remove any empty folders it leaves behind when it's finished. Very good
program.

http://www.digitalvolcano.co.uk/content/duplicate-cleaner
Click to expand...
He said he'd like a program that identifies pictures that look alike,
not just pictures that are identical.

By the way, your newsreader is a total failure when it comes to
quoting and attribution.
 
Y

Yousuf Khan

You might want to look at a general-purpose "duplicate file finder" -type
program. They can handle pictures, music or whatever, but they only work
if the file contents are byte-for-byte identical.
<http://www.techsupportalert.com/best-free-duplicate-file-detector.htm>
Click to expand...
Yeah, no, I already have those types of utilities. I'm looking for
something that finds duplicates based on the content of the photos, e.g.
resized, cropped, retouched photos.

Yousuf Khan
 
C

Char Jackson

Hmm, thanks, this looks like it'll work by its description. I'll see
what it can actually do.
Click to expand...
Would you mind coming back after you've played with it to let us know
how well it works? If it does what it claims, I'm sure others would
benefit from it, including myself.
 
Y

Yousuf Khan

Would you mind coming back after you've played with it to let us know
how well it works? If it does what it claims, I'm sure others would
benefit from it, including myself.
Click to expand...
I downloaded the 30-day trial version. I have mixed opinions about it
already. My main requirement was for the software to find duplicates
that were resized, cropped, or image-enhanced from each other. It rates
the matches as a percentage with 100% being that it's absolutely sure
that they are the same.

On the plus side, it's relatively fast, it was able to compare all of my
personal photos in less than 3 minutes, which was about 4000 photos.
Also all of the 100% matches are absolutely dead-on absolutely right,
perhaps just resizes of the same photo, or with some image enhancement
(brightness, contrast, gamma, etc.). It's also able to pick out photos
that are rotates from each other, e.g. something rotated by 90° or 180°,
but that would take a bit more processing time, and it's not enabled by
default because it takes longer.

On the minus side, it's when it's not 100% sure of a picture that it
gets frustrating. As I said, it rates its surety as a percentage up to
100%. But even at 99% sureness, it made some laughable mistakes, and by
98% surety, it just becomes comical. I wish it would come up with a
rating system that's further differentiated. The ones it rated as 98%
certain, I would've only rated them as 60% or 70% certain. This sureness
scale could actually be useful for its own purposes, such as
categorizing similar-style pictures, if only it came up with a better
differentiated rating system. Perhaps some kind of a logarithmic scale
ending at 100%, but dropping off precipitously as its surety goes down.

I think it seems to have some real problems with landscape pictures. I
don't mean landscape as in portrait vs. landscape orientation, I mean
pictures of scenery. It got confused by some pictures where it thought
pictures of cityscapes, parks, and beaches were the same picture! It was
further laughable because these scenes were even taken in different
countries.

On the other hand, some pictures rated 99% should've been 100%, while
others should've been maybe 80%. Yet both were rated 99% for whatever
reason.

At this point, I don't know if I would pay the registration price for
this software. It has way too many false positives.

Yousuf Khan
 
C

Char Jackson

I downloaded the 30-day trial version. I have mixed opinions about it
already. My main requirement was for the software to find duplicates
that were resized, cropped, or image-enhanced from each other. It rates
the matches as a percentage with 100% being that it's absolutely sure
that they are the same.

On the plus side, it's relatively fast, it was able to compare all of my
personal photos in less than 3 minutes, which was about 4000 photos.
Also all of the 100% matches are absolutely dead-on absolutely right,
perhaps just resizes of the same photo, or with some image enhancement
(brightness, contrast, gamma, etc.). It's also able to pick out photos
that are rotates from each other, e.g. something rotated by 90° or 180°,
but that would take a bit more processing time, and it's not enabled by
default because it takes longer.

On the minus side, it's when it's not 100% sure of a picture that it
gets frustrating. As I said, it rates its surety as a percentage up to
100%. But even at 99% sureness, it made some laughable mistakes, and by
98% surety, it just becomes comical. I wish it would come up with a
rating system that's further differentiated. The ones it rated as 98%
certain, I would've only rated them as 60% or 70% certain. This sureness
scale could actually be useful for its own purposes, such as
categorizing similar-style pictures, if only it came up with a better
differentiated rating system. Perhaps some kind of a logarithmic scale
ending at 100%, but dropping off precipitously as its surety goes down.

I think it seems to have some real problems with landscape pictures. I
don't mean landscape as in portrait vs. landscape orientation, I mean
pictures of scenery. It got confused by some pictures where it thought
pictures of cityscapes, parks, and beaches were the same picture! It was
further laughable because these scenes were even taken in different
countries.

On the other hand, some pictures rated 99% should've been 100%, while
others should've been maybe 80%. Yet both were rated 99% for whatever
reason.

At this point, I don't know if I would pay the registration price for
this software. It has way too many false positives.
Click to expand...
Excellent review, thanks! That's very useful information. I think the
search for a solution needs to continue.

Anyone else know of software that compares digital photos using fuzzy
logic?
 
C

choro

Excellent review, thanks! That's very useful information. I think the
search for a solution needs to continue.

Anyone else know of software that compares digital photos using fuzzy
logic?
Click to expand...
Yes, Yousuf Khan is certainly a very highly valued contributor to this
newsgroup. I take my hat off to him!
 
Y

Yousuf Khan

Excellent review, thanks! That's very useful information. I think the
search for a solution needs to continue.

Anyone else know of software that compares digital photos using fuzzy
logic?
Click to expand...
It might still be worth the price if you use only the 100% matches. You
can then manually pick out the 99% matches yourself.

As I said, some of the 99% matches should've been actually 100% matches.
Others were true 99% matches, where for example you might have taken two
similar pictures a few seconds apart just to get a better shot: here
somebody's head might be turned just slightly more, or somebody's eyes
might be closed in one, or somebody's mouth might be open in another
one. Other times, the 99% matches were simply similarly taken scenery
pictures, and this software is terrible with those types of pictures.
I'm going to try a few more tests of this software concentrating on just
people pictures, and maybe it'll get those ones more right.

Yousuf Khan
 
K

KCB

Yousuf Khan said:
Is there a standalone program that can read in multiple picture files and
determine if they are the same thing or close to each other? There's an
online website that does something like this called, TinEye, but it only
compares online pictures to other online pictures, I'd like something
similar to compare local pictures on my on machine! This is more than just
comparing filesizes and CRC's, this actually seems know how to visually
compare the pictures.

Yousuf Khan
Click to expand...
This was featured at giveawayoftheday.com at one time, but I haven't tried
it:

http://www.digitalvolcano.co.uk/content/duplicate-cleaner
 
D

Dex

Is there a standalone program that can read in multiple picture files
and determine if they are the same thing or close to each other? There's
an online website that does something like this called, TinEye, but it
only compares online pictures to other online pictures, I'd like
something similar to compare local pictures on my on machine! This is
more than just comparing filesizes and CRC's, this actually seems know
how to visually compare the pictures.

Yousuf Khan
Click to expand...
DupDetector is a utility for finding and removing duplicate and near
duplicate images from your image collections.


http://www.prismaticsoftware.com/dupdetector/dupdetector.html
 
M

Matt Ellis

Is there a standalone program that can read in multiple picture files
and determine if they are the same thing or close to each other? There's
an online website that does something like this called, TinEye, but it
only compares online pictures to other online pictures, I'd like
something similar to compare local pictures on my on machine! This is
more than just comparing filesizes and CRC's, this actually seems know
how to visually compare the pictures.

Yousuf Khan
Click to expand...
ODIN II 3.0 Freeware
http://download.chip.eu/en/ODIN-II-3.0_26001.html

Old! I have used build 107 on Win7. There is (was) an ODIN
Professional for $19.95, You can download it but not sure if you can
still buy - Don't know if it will work.

Matt
 
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