software to detect defects in stamps (free)

I wrote a program to help detect defects or identify an object (like
coins or stamps). sample code & specimen images included. see the guide
at this link:

http://cheapbooks.com/forum/viewtopic.php?t=440

cheapbooks.com wrote:
I wrote a program to help detect defects or identify an object (like
coins or stamps). sample code & specimen images included. see the guide
at this link:

http://cheapbooks.com/forum/viewtopic.php?t=440

An interesting, if unusual, concept but I don't see stamps mentioned in
the writeup or any stamp images.

Bill

Technology already exists to identify (genuine) stamps, including mass
spectroscopy. One of our techs in our dna lab is a stamp collector and has
tested inks and dyes using the mass spectrometer. This is a step up from
software!
jp



"cheapbooks.com" wrote:

I wrote a program to help detect defects or identify an object (like
coins or stamps). sample code & specimen images included. see the guide
at this link:

http://cheapbooks.com/forum/viewtopic.php?t=440

"cheapbooks.com" wrote:

I wrote a program to help detect defects or identify an object (like
coins or stamps). sample code & specimen images included. see the guide
at this link:

http://cheapbooks.com/forum/viewtopic.php?t=440

"Paul Jones" wrote in message
...
Technology already exists to identify (genuine) stamps, including mass
spectroscopy. One of our techs in our dna lab is a stamp collector and has
tested inks and dyes using the mass spectrometer. This is a step up from
software!
jp

The progress never stops indeed!

Could you please provide a link to the relevant information (if possibly,
with the price of the mass spectrometer mentioned too)?

TIA.

--
Victor Manta
SNA Physicist in Charge

----------------------------------------------------------------------------
Spanish North Africa: http://www.values.ch/sna-site/
----------------------------------------------------------------------------

I was under the impression that mass spectroscopy
was a destructive technology. Isn't it necessary
to "burn" a (small) portion of the ink?

Jay Carrigan change domain to mchsi
www.jaypex.com


In article , says...

Technology already exists to identify (genuine) stamps, including mass
spectroscopy. One of our techs in our dna lab is a stamp collector and has
tested inks and dyes using the mass spectrometer. This is a step up from
software!
jp



"cheapbooks.com" wrote:

I wrote a program to help detect defects or identify an object (like
coins or stamps). sample code & specimen images included. see the guide
at this link:

http://cheapbooks.com/forum/viewtopic.php?t=440

You can bombard the stamps with light in different wavelengths and see what
comes back/gets absorbed
(Don't know if that its the case here)

Jan

"Jay T. Carrigan" schreef in bericht
news:4iXVe.109677$084.58109@attbi_s22...
I was under the impression that mass spectroscopy
was a destructive technology. Isn't it necessary
to "burn" a (small) portion of the ink?

Jay Carrigan change domain to mchsi
www.jaypex.com


In article , says...

Technology already exists to identify (genuine) stamps, including mass
spectroscopy. One of our techs in our dna lab is a stamp collector and
has
tested inks and dyes using the mass spectrometer. This is a step up from
software!
jp



"cheapbooks.com" wrote:

I wrote a program to help detect defects or identify an object (like
coins or stamps). sample code & specimen images included. see the guide
at this link:

http://cheapbooks.com/forum/viewtopic.php?t=440

well, Ebay has mass spectrometers for sale.

Victor Manta wrote:

"cheapbooks.com" wrote:

I wrote a program to help detect defects or identify an object (like
coins or stamps). sample code & specimen images included. see the guide
at this link:

http://cheapbooks.com/forum/viewtopic.php?t=440

"Paul Jones" wrote in message
...
Technology already exists to identify (genuine) stamps, including mass
spectroscopy. One of our techs in our dna lab is a stamp collector and has
tested inks and dyes using the mass spectrometer. This is a step up from
software!
jp

The progress never stops indeed!

Could you please provide a link to the relevant information (if possibly,
with the price of the mass spectrometer mentioned too)?

TIA.

--
Victor Manta
SNA Physicist in Charge

----------------------------------------------------------------------------
Spanish North Africa: http://www.values.ch/sna-site/
----------------------------------------------------------------------------

Actually, you are correct. I wondered about this myself and asked our tech.
He smiled and advised he was "only testing" a theory so I have to assume the
samples he was testing werent from valuable stamps? I thought about this
and it does seem to me other methods would be preferable, in fact easier
and non-destructive. Any of the absorbtive polychromatic or monochromatic
tests would seem appropriate to stamps, or photodensitometry, or simply
scanning a genuine stamp and reducing its lines to a coordinate based series of
photometric values should do it. The same technology that applies to finger
printing could be applied to stamp images. Paper evaluation already has its
own well established technology. Im no expert, but Im willing to bet that image
analysis technology already is being applied by professionals in the area of
philately.
jp





"Jay T. Carrigan" wrote:

I was under the impression that mass spectroscopy
was a destructive technology. Isn't it necessary
to "burn" a (small) portion of the ink?

Jay Carrigan change domain to mchsi
www.jaypex.com

In article , says...

Technology already exists to identify (genuine) stamps, including mass
spectroscopy. One of our techs in our dna lab is a stamp collector and has
tested inks and dyes using the mass spectrometer. This is a step up from
software!
jp



"cheapbooks.com" wrote:

I wrote a program to help detect defects or identify an object (like
coins or stamps). sample code & specimen images included. see the guide
at this link:

http://cheapbooks.com/forum/viewtopic.php?t=440