Great Article on Sharpening

JK
Posted By
JP Kabala
Aug 24, 2003
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758
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12
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Closed
Came across this today while doing some research–
Thought it might be of value to the folks here.

http://www.biphotoclub.org/DISG%20Archive/2002-08.PDF

Excellent article on how to use Photoshop, Photo-Paint or PSP (or any other image editor which supports layers and channels) to prevent that nasty halo that comes from oversharpening with
Unsharp Mask (or even with some third-party plug-ins I’ve seen) You know, that sort of irradiated glow around the areas of high contrast that makes things look unnatural and digitally processed?

Very Informative and useful. Explains what USM is, what it does, how it works, and offers some alternative techniques such as edge masking, channel masking, and two pass sharpening to get kinder, more realistic results. This is not "newbie fodder" and makes some pretty hefty assumptions about how well you understand channels and masks, but for the intermediate to advanced user of image editing software, it contains some excellent advice and very workable techniques.

While the location and name of your menu command may vary a bit from version to version or application to application, the underlying technique is solid and can be accomplished
in most sophisticated image editors, irrespective of vendor.

The entire archive of their Digital Imaging Special Interest Group White Papers is located at

http://www.biphotoclub.org/disg_archive.htm

I haven’t read them all (LOL) but if the rest are as well-researched and intelligent as this one, this is a link you photographers might very well want to bookmark. These folks take their stuff seriously. You don’t see too many web-based tutorials with scholarly references, footnotes and a bibliography.

JPK

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S
Sheila
Aug 24, 2003
Thanks JP!!!!!


Sheila M Douglas

To keep a lamp burning we have to keep putting oil in it." –Mother Teresa
All outgoing e-mail scanned by Norton Anti-Virus2003
"JP Kabala" wrote in message
Came across this today while doing some research–
Thought it might be of value to the folks here.

http://www.biphotoclub.org/DISG%20Archive/2002-08.PDF

Excellent article on how to use Photoshop, Photo-Paint or PSP (or any
other
image editor which supports layers and channels) to prevent that nasty halo that comes from oversharpening with
Unsharp Mask (or even with some third-party plug-ins I’ve seen) You know, that sort of irradiated glow around the areas of high contrast that makes things look unnatural and digitally processed?
Very Informative and useful. Explains what USM is, what it does, how it works, and offers some alternative techniques such as edge masking, channel masking, and two pass sharpening to get kinder, more realistic results. This is not "newbie fodder" and makes some pretty hefty assumptions about how well you understand channels and masks, but for the intermediate to advanced user of image editing software, it contains some excellent advice and very workable techniques.

While the location and name of your menu command may vary a bit from version to version or application to application, the underlying technique is solid and can be accomplished
in most sophisticated image editors, irrespective of vendor.
The entire archive of their Digital Imaging Special Interest Group White Papers is located at

http://www.biphotoclub.org/disg_archive.htm

I haven’t read them all (LOL) but if the rest are as well-researched and intelligent as this one, this is a link you photographers might very well want to bookmark. These folks take their stuff seriously. You don’t see too many web-based tutorials with scholarly references, footnotes and a bibliography.

JPK

T
thegame
Aug 24, 2003
VERY nice link.
thumbs up.
U
Uni
Aug 24, 2003
JP Kabala wrote:
Came across this today while doing some research–
Thought it might be of value to the folks here.

http://www.biphotoclub.org/DISG%20Archive/2002-08.PDF

I’ve seen that one before. Besides, it’s over a year old. You should do your "research" more often. Thanks for the cross posting flood.

Uni
BV
Bart van der Wolf
Aug 24, 2003
"Uni" wrote in message
JP Kabala wrote:
Came across this today while doing some research–
Thought it might be of value to the folks here.

http://www.biphotoclub.org/DISG%20Archive/2002-08.PDF

I’ve seen that one before.

Who cares.

Besides, it’s over a year old.

Wow, you mean Unsharp Masking doesn’t work anymore?

You should do your "research" more often. Thanks for the cross posting
flood.

And since you also did, I guess it’s all right for me to also do it. Didn’t you have any useful comments to contribute, like the OP did?

Bart
U
Uni
Aug 24, 2003
Bart "yes, I think I can use PS-7" van der Wolf wrote:

Bart: hush.

🙂

Uni
M
Mike
Aug 24, 2003
in article 3f48a720$0$49117$, Bart van der Wolf at
wrote on 8/24/03 4:36 AM:

"Uni" wrote in message
JP Kabala wrote:
Came across this today while doing some research–
Thought it might be of value to the folks here.

http://www.biphotoclub.org/DISG%20Archive/2002-08.PDF

I’ve seen that one before.

Who cares.

Besides, it’s over a year old.

Wow, you mean Unsharp Masking doesn’t work anymore?

You should do your "research" more often. Thanks for the cross posting
flood.

And since you also did, I guess it’s all right for me to also do it. Didn’t you have any useful comments to contribute, like the OP did?
Bart

If you start playing the game with Uni, you are going to make a mess.


Mike

* Logo Design *
Put some fun in your next logo!

Site at: http://www.artistmike.com
U
Uni
Aug 24, 2003
mike wrote:
in article 3f48a720$0$49117$, Bart van der Wolf at
wrote on 8/24/03 4:36 AM:

"Uni" wrote in message

JP Kabala wrote:

Came across this today while doing some research–
Thought it might be of value to the folks here.

http://www.biphotoclub.org/DISG%20Archive/2002-08.PDF

I’ve seen that one before.

Who cares.

Besides, it’s over a year old.

Wow, you mean Unsharp Masking doesn’t work anymore?

You should do your "research" more often. Thanks for the cross posting

flood.

And since you also did, I guess it’s all right for me to also do it. Didn’t you have any useful comments to contribute, like the OP did?
Bart

If you start playing the game with Uni, you are going to make a mess.

Don’t blame me. It wasn’t I that cross posted the original article with the intent to drum up business for the Pee Ess Pee newsgroup.

🙂

Uni

B
ben-dover
Aug 24, 2003
you mean they actually have their own group, like the monkees? "Uni" wrote in message
mike wrote:
in article 3f48a720$0$49117$, Bart van der Wolf
at
wrote on 8/24/03 4:36 AM:

"Uni" wrote in message

JP Kabala wrote:

Came across this today while doing some research–
Thought it might be of value to the folks here.

http://www.biphotoclub.org/DISG%20Archive/2002-08.PDF

I’ve seen that one before.

Who cares.

Besides, it’s over a year old.

Wow, you mean Unsharp Masking doesn’t work anymore?

You should do your "research" more often. Thanks for the cross posting

flood.

And since you also did, I guess it’s all right for me to also do it. Didn’t you have any useful comments to contribute, like the OP did?
Bart

If you start playing the game with Uni, you are going to make a mess.

Don’t blame me. It wasn’t I that cross posted the original article with the intent to drum up business for the Pee Ess Pee newsgroup.
🙂

Uni


BV
Bart van der Wolf
Aug 24, 2003
"mike" wrote in message
SNIP
If you start playing the game with Uni, you are going to make a mess.

Nah, as the saying goes; I won’t engage in a battle of wits with an unarmed man.

You on the other hand might be fun, but I’ll refrain from it because it is OT.

Bart
U
Uni
Aug 24, 2003
ben-dover wrote:
you mean they actually have their own group, like the monkees?

Yes, sort of 🙂

However, since their software company fled usenet, they are lost with little to no direction, like unguided missiles 🙂

Uni – Another Pleasant Valley Sunday 🙂

"Uni" wrote in message

mike wrote:

in article 3f48a720$0$49117$, Bart van der Wolf
at

wrote on 8/24/03 4:36 AM:

"Uni" wrote in message

JP Kabala wrote:

Came across this today while doing some research–
Thought it might be of value to the folks here.

http://www.biphotoclub.org/DISG%20Archive/2002-08.PDF

I’ve seen that one before.

Who cares.

Besides, it’s over a year old.

Wow, you mean Unsharp Masking doesn’t work anymore?

You should do your "research" more often. Thanks for the cross posting

flood.

And since you also did, I guess it’s all right for me to also do it. Didn’t you have any useful comments to contribute, like the OP did?
Bart

If you start playing the game with Uni, you are going to make a mess.

Don’t blame me. It wasn’t I that cross posted the original article with the intent to drum up business for the Pee Ess Pee newsgroup.
🙂

Uni


D
dumpuni
Aug 25, 2003
mike wrote:
in article 3f48a720$0$49117$, Bart van der Wolf at
wrote on 8/24/03 4:36 AM:

"Uni" wrote in message
JP Kabala wrote:
Came across this today while doing some research–
Thought it might be of value to the folks here.

http://www.biphotoclub.org/DISG%20Archive/2002-08.PDF

I’ve seen that one before.

Who cares.

Besides, it’s over a year old.

Wow, you mean Unsharp Masking doesn’t work anymore?

You should do your "research" more often. Thanks for the cross posting
flood.

And since you also did, I guess it’s all right for me to also do it. Didn’t you have any useful comments to contribute, like the OP did?
Bart

If you start playing the game with Uni, you are going to make a mess.

Uni is a jerk.
U
Uni
Aug 26, 2003
wrote:
mike wrote:

in article 3f48a720$0$49117$, Bart van der Wolf at
wrote on 8/24/03 4:36 AM:

"Uni" wrote in message

JP Kabala wrote:

Came across this today while doing some research–
Thought it might be of value to the folks here.

http://www.biphotoclub.org/DISG%20Archive/2002-08.PDF

I’ve seen that one before.

Who cares.

Besides, it’s over a year old.

Wow, you mean Unsharp Masking doesn’t work anymore?

You should do your "research" more often. Thanks for the cross posting

flood.

And since you also did, I guess it’s all right for me to also do it. Didn’t you have any useful comments to contribute, like the OP did?
Bart

If you start playing the game with Uni, you are going to make a mess.

Uni is a jerk.

Why, because I’m superior?

🙂

Uni

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