graphics based content filter

Hi,

Is there a good graphics based content filter that will
automatically
prevent the browser from displaying certain images based on
flesh tone?
We are concerned with blocking pornographic images. Is this
possible?
Blocking pornographic text is not as great a concern for us.


Also, we are hoping to do this at the client side rather
than through
the use of a proxy server.

Has this type of filtering software been largely
discredited, or, are
there solutions out there worthy of consideration?

I would welcome any suggestions.

Regards
John

John Fitzgibbon

p: 00 353 91 562471
f: 00 353 91 565039
w: http://www.galwaylibrary.
ie 

************************************************************
******* 
Tá eolas atá príobháideach agus rúnda sa ríomhphost seo 
agus aon iatán a ghabhann leis agus is leis an duine/na
daoine
sin amháin a bhfuil siad seolta chucu a bhaineann siad. 
Mura seolaí thú, níl tú údaraithe an ríomhphost nó aon iatán

a ghabhann leis a léamh, a chóipáil ná a úsáid. 
Má tá an ríomhphost seo faighte agat trí dhearmad, 
cuir an seoltóir ar an eolas thrí aischur ríomhphoist 
agus scrios ansin é le do thoil. 

This e-mail and any attachment contains information which is

private and confidential and is intended for the addressee 
only. If you are not an addressee, you are not authorised 
to read, copy or use the e-mail or any attachment. 
If you have received this e-mail in error, please notify 
the sender by return e-mail and then destroy it. 
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bjunction.org/web4lib/

John,

There are filters that purport to block images based on
flesh tones, etc.
Here's one example (just what I found via Google):

http://www.ltutech.com/en/technology-and-prod
ucts.image-filter.html

All of the reviews I've read of these products is that they
seriously
overblock. This particular product claims it blocks 96% of
pornographic
images. What they don't tell you is how many
non-pornographic images are
blocked as well. Unfortunately, it appears that these
filters don't "know
it when they see it".

Andrew Mutch
Library Systems Technician
Waterford Township Public Library
Waterford, MI


> Hi,
>
> Is there a good graphics based content filter that will
automatically
> prevent the browser from displaying certain images
based on flesh tone?
> We are concerned with blocking pornographic images. Is
this possible?
> Blocking pornographic text is not as great a concern
for us.
>
> Also, we are hoping to do this at the client side
rather than through
> the use of a proxy server.
>
> Has this type of filtering software been largely
discredited, or, are
> there solutions out there worthy of consideration?
>
> I would welcome any suggestions.
>
> Regards
> John
>
> John Fitzgibbon
>
> p: 00 353 91 562471
> f: 00 353 91 565039
> w: http://www.galwaylibrary.
ie
>
>
************************************************************
*******
> Tá eolas atá príobháideach agus rúnda sa ríomhphost seo
> agus aon iatán a ghabhann leis agus is leis an duine/na
daoine
> sin amháin a bhfuil siad seolta chucu a bhaineann siad.
> Mura seolaí thú, níl tú údaraithe an ríomhphost nó aon
iatán
> a ghabhann leis a léamh, a chóipáil ná a úsáid.
> Má tá an ríomhphost seo faighte agat trí dhearmad,
> cuir an seoltóir ar an eolas thrí aischur ríomhphoist
> agus scrios ansin é le do thoil.
>
> This e-mail and any attachment contains information
which is
> private and confidential and is intended for the
addressee
> only. If you are not an addressee, you are not
authorised
> to read, copy or use the e-mail or any attachment.
> If you have received this e-mail in error, please
notify
> the sender by return e-mail and then destroy it.
>
************************************************************
*********
> _______________________________________________
> Web4lib mailing list
> Web4libwebjunction.org
> http://lists.we
bjunction.org/web4lib/
>

_______________________________________________
Web4lib mailing list
Web4libwebjunction.org
http://lists.we
bjunction.org/web4lib/

John,

There are filters that purport to block images based on
flesh tones, etc.
Here's one example (just what I found via Google):

http://www.ltutech.com/en/technology-and-prod
ucts.image-filter.html

All of the reviews I've read of these products is that they
seriously
overblock. This particular product claims it blocks 96% of
pornographic
images. What they don't tell you is how many
non-pornographic images are
blocked as well. Unfortunately, it appears that these
filters don't "know
it when they see it".

Andrew Mutch
Library Systems Technician
Waterford Township Public Library
Waterford, MI


> Hi,
>
> Is there a good graphics based content filter that will
automatically
> prevent the browser from displaying certain images
based on flesh tone?
> We are concerned with blocking pornographic images. Is
this possible?
> Blocking pornographic text is not as great a concern
for us.
>
> Also, we are hoping to do this at the client side
rather than through
> the use of a proxy server.
>
> Has this type of filtering software been largely
discredited, or, are
> there solutions out there worthy of consideration?
>
> I would welcome any suggestions.
>
> Regards
> John
>
> John Fitzgibbon
>
> p: 00 353 91 562471
> f: 00 353 91 565039
> w: http://www.galwaylibrary.
ie
>
>
************************************************************
*******
> Tá eolas atá príobháideach agus rúnda sa ríomhphost seo
> agus aon iatán a ghabhann leis agus is leis an duine/na
daoine
> sin amháin a bhfuil siad seolta chucu a bhaineann siad.
> Mura seolaí thú, níl tú údaraithe an ríomhphost nó aon
iatán
> a ghabhann leis a léamh, a chóipáil ná a úsáid.
> Má tá an ríomhphost seo faighte agat trí dhearmad,
> cuir an seoltóir ar an eolas thrí aischur ríomhphoist
> agus scrios ansin é le do thoil.
>
> This e-mail and any attachment contains information
which is
> private and confidential and is intended for the
addressee
> only. If you are not an addressee, you are not
authorised
> to read, copy or use the e-mail or any attachment.
> If you have received this e-mail in error, please
notify
> the sender by return e-mail and then destroy it.
>
************************************************************
*********
> _______________________________________________
> Web4lib mailing list
> Web4libwebjunction.org
> http://lists.we
bjunction.org/web4lib/
>

_______________________________________________
Web4lib mailing list
Web4libwebjunction.org
http://lists.we
bjunction.org/web4lib/

John,
To block images but not text, some filters allow the Admin
to block by file
type (extension) within one of the categories. I don't know
of any content
filters that actually look for skin tone and then only block
the skin tone
images.  They may use too much skin tone as one of their
factors to
categorize the page into "pornography" but they
still would only block the
image by file type.

I put up a site at http://libraryfiltering.o
rg that collects about 100
features of content filters and you can compare them by
product and by
feature.  It's not the slickest matrix but it helps.  When I
look at all the
product that say "Yes" to "Admin can block
images but not text within a
category" there are about 6 products there.

Lori Ayre

On 9/27/06, John Fitzgibbon <jfitzgibbongalwaylibrary.ie> wrote:
>
> Hi,
>
> Is there a good graphics based content filter that will
automatically
> prevent the browser from displaying certain images
based on flesh tone?
> We are concerned with blocking pornographic images. Is
this possible?
> Blocking pornographic text is not as great a concern
for us.
>
> Also, we are hoping to do this at the client side
rather than through
> the use of a proxy server.
>
> Has this type of filtering software been largely
discredited, or, are
> there solutions out there worthy of consideration?
>
> I would welcome any suggestions.
>
> Regards
> John
>
> John Fitzgibbon
>
> p: 00 353 91 562471
> f: 00 353 91 565039
> w: http://www.galwaylibrary.
ie
>
>
************************************************************
*******
> Tá eolas atá príobháideach agus rúnda sa ríomhphost seo
> agus aon iatán a ghabhann leis agus is leis an duine/na
daoine
> sin amháin a bhfuil siad seolta chucu a bhaineann siad.
> Mura seolaí thú, níl tú údaraithe an ríomhphost nó aon
iatán
> a ghabhann leis a léamh, a chóipáil ná a úsáid.
> Má tá an ríomhphost seo faighte agat trí dhearmad,
> cuir an seoltóir ar an eolas thrí aischur ríomhphoist
> agus scrios ansin é le do thoil.
>
> This e-mail and any attachment contains information
which is
> private and confidential and is intended for the
addressee
> only. If you are not an addressee, you are not
authorised
> to read, copy or use the e-mail or any attachment.
> If you have received this e-mail in error, please
notify
> the sender by return e-mail and then destroy it.
>
************************************************************
*********
> _______________________________________________
> Web4lib mailing list
> Web4libwebjunction.org
> http://lists.we
bjunction.org/web4lib/
>



-- 
=========================
Lori Bowen Ayre (loriayregmail.com)
The Galecia Group (http://galecia.com)
Mentat (http://galecia.com/weblog)
LibraryFiltering (http://libraryfiltering.o
rg)
_______________________________________________
Web4lib mailing list
Web4libwebjunction.org
http://lists.we
bjunction.org/web4lib/

John,
To block images but not text, some filters allow the Admin
to block by file
type (extension) within one of the categories. I don't know
of any content
filters that actually look for skin tone and then only block
the skin tone
images.  They may use too much skin tone as one of their
factors to
categorize the page into "pornography" but they
still would only block the
image by file type.

I put up a site at http://libraryfiltering.o
rg that collects about 100
features of content filters and you can compare them by
product and by
feature.  It's not the slickest matrix but it helps.  When I
look at all the
product that say "Yes" to "Admin can block
images but not text within a
category" there are about 6 products there.

Lori Ayre

On 9/27/06, John Fitzgibbon <jfitzgibbongalwaylibrary.ie> wrote:
>
> Hi,
>
> Is there a good graphics based content filter that will
automatically
> prevent the browser from displaying certain images
based on flesh tone?
> We are concerned with blocking pornographic images. Is
this possible?
> Blocking pornographic text is not as great a concern
for us.
>
> Also, we are hoping to do this at the client side
rather than through
> the use of a proxy server.
>
> Has this type of filtering software been largely
discredited, or, are
> there solutions out there worthy of consideration?
>
> I would welcome any suggestions.
>
> Regards
> John
>
> John Fitzgibbon
>
> p: 00 353 91 562471
> f: 00 353 91 565039
> w: http://www.galwaylibrary.
ie
>
>
************************************************************
*******
> Tá eolas atá príobháideach agus rúnda sa ríomhphost seo
> agus aon iatán a ghabhann leis agus is leis an duine/na
daoine
> sin amháin a bhfuil siad seolta chucu a bhaineann siad.
> Mura seolaí thú, níl tú údaraithe an ríomhphost nó aon
iatán
> a ghabhann leis a léamh, a chóipáil ná a úsáid.
> Má tá an ríomhphost seo faighte agat trí dhearmad,
> cuir an seoltóir ar an eolas thrí aischur ríomhphoist
> agus scrios ansin é le do thoil.
>
> This e-mail and any attachment contains information
which is
> private and confidential and is intended for the
addressee
> only. If you are not an addressee, you are not
authorised
> to read, copy or use the e-mail or any attachment.
> If you have received this e-mail in error, please
notify
> the sender by return e-mail and then destroy it.
>
************************************************************
*********
> _______________________________________________
> Web4lib mailing list
> Web4libwebjunction.org
> http://lists.we
bjunction.org/web4lib/
>



-- 
=========================
Lori Bowen Ayre (loriayregmail.com)
The Galecia Group (http://galecia.com)
Mentat (http://galecia.com/weblog)
LibraryFiltering (http://libraryfiltering.o
rg)
_______________________________________________
Web4lib mailing list
Web4libwebjunction.org
http://lists.we
bjunction.org/web4lib/