What's the first thing you do?


Ken Florentino <kflor@...>
 

To start a discussion, I thought it would be interesting to see where we start. Lets assume a planetary image that has
been stacked and it's ready for processing.

What's the next thing you do?

Ken


Wes <starman2@...>
 

Hi Ken,

The first thing I do is a Histogram modification , I'm not sure at all
if that is the best thing to do first , I have also started using the
statistical difference to bring out details and I have had good
results with it .


Wes




To start a discussion, I thought it would be interesting to see where we start. Lets assume a planetary image that has
been stacked and it's ready for processing.

What's the next thing you do?

Ken





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Ken Florentino <kflor@...>
 

The first thing I do is a Histogram modification ,
Any particular type?

I'm not sure at all if that is the best thing to do first
Do any of us really know? Seems that doing the histogram get's it bright enough to see what the sharpening is up to.

I have also started using the statistical difference to bring out details and I have had good
results with it .
I like it too.

I usually do a Uniform Histogram set to .001. Then I reduce the brightness using Color- Saturation and Brightness to .85.
That allows some head room since many sharpening operators increase brightness of the bright details they sharpen.
Helps to keep them from saturating.


Wes <starman2@...>
 

Any particular type?
Uniform non adaptive .005 , I see your point about
sharpen operators increasing brightness , color and
saturation I do as one of the last steps .

Also before starting any sharpen operations I split the image into
the primary colors and do a planet align and re-combine them ,
this helps to get the image in more perfect alignment and sometimes
I may have to scale down the blue image some.


Wes


>I'm not sure at all if that is the best thing to do first

Do any of us really know? Seems that doing the histogram get's it bright enough to see what the sharpening is up to.

> I have also started using the statistical difference to bring out details and I have had good
>results with it .

I like it too.

I usually do a Uniform Histogram set to .001. Then I reduce the brightness using Color- Saturation and Brightness to .85.
That allows some head room since many sharpening operators increase brightness of the bright details they sharpen.
Helps to keep them from saturating.




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dennis_persyk <dpersyk@...>
 

Let me back up: The first thing I do upon opening up IP is grab the
tool bar window and pull it down to the bottom of the desk top. This
is like pulling down a nice dark shade. It gets rid of all the icons
and clutter on my desk top that distract from the images to be
processed.

After I have a good stack, the first thing I do it hit the Duplicate
(Images at 100%) icon four or five times– the four little blue
squares button. My initial efforts are always discarded, so I like
to have a bunch of backups available to start over with after I've
learned what and what not to do. I probably use Duplicate more than
any other icon.

Dennis Persyk
Hampshire, IL

--- In ImagesPlus@y..., Ken Florentino <kflor@p...> wrote:
To start a discussion, I thought it would be interesting to see
where we start. Lets assume a planetary image that has
been stacked and it's ready for processing.

What's the next thing you do?

Ken


dennis_persyk <dpersyk@...>
 

I've uploaded two Jupiter images to the Photos/Analysis that
illustrate what I do first. The first is a stack of 11 frames. It
is pretty washed-out looking to me.

The second illustrates my favorite of all contrast operators for
Jupiter: Exponential! I chose Enable Sliders and slid the Power
slider to where it looks good on my monitor – 2.906 in this case. I
just love the way it brings out the color.

The image needs lots more work, but this single operator has helped a
lot.

I'd like to couple my text notes to the image but I don't think I can
put a .txt file in with the photos. Maybe others can suggest a good
way to annotate our processing steps so annotation and image stay
together.

Dennis Persyk
Hampshire, IL

P.S. When you upload images, remember to uncheck the "Keep original
version for ordering prints" box so as to conserve file storage space.

--- In ImagesPlus@y..., Ken Florentino <kflor@p...> wrote:
To start a discussion, I thought it would be interesting to see
where we start. Lets assume a planetary image that has
been stacked and it's ready for processing.

What's the next thing you do?

Ken


Ken Florentino <kflor@...>
 

The second illustrates my favorite of all contrast operators for
Jupiter: Exponential! I chose Enable Sliders and slid the Power
slider to where it looks good on my monitor ? 2.906 in this case. I
just love the way it brings out the color.
I like it a lot as well. I have to choose how much of the limb I want to sacrifice to the improved contrast. If there is a
moon nearby, too much and it dissappears.

A couple of thoughts for further development.

A planetary flattening routine that would bring the limbs closer in brightness to the center.
An adaptive routine that would increase the contrast across a reange of brightnesses but leave the rest alone.
A selection ability like many of the "normal" programs so you could draw an area around say Jupiter, enhance the
contrast and leave the moons alone.

I'd like to couple my text notes to the image but I don't think I can
put a .txt file in with the photos. Maybe others can suggest a good
way to annotate our processing steps so annotation and image stay
together.
I don't know of a way currently but Tif can add comments and Jpg can have EXIF data in it. Seems like it should be
able to be embedded in the image. In the meanwhile, I think the best we can do is use the file area and place the
image and the text with the same name.

Ken


Ken Florentino <kflor@...>
 

Dennis,

Have you tried the trick Wes mentioned about separating the colors, aligning them and recombining? I notice
atmospheric chromatic abberation in the image you put up there. Give it a try. I think Mike is going to put a 1 step menu
item to do that in a future release.

Sometimes one channel (usually blue) is larger than the rest and an easier way to scale it for these (and other) purposes
would be nice. Something that works the way the current sliders do when enabled. Every time you make an adjustment,
it updates the image and only when you are satisfied with the size would you hit the Reset button.

Ken


Mike Unsold
 

KenF wrote:
A couple of thoughts for further development.

1)
A planetary flattening routine that would bring the limbs closer in
brightness to the center.

2)
An adaptive routine that would increase the contrast across a reange
of brightnesses but leave the rest alone.

3)
A selection ability like many of the "normal" programs so you could
draw an area around say Jupiter, enhance the contrast and leave the
moons alone.

4)
I think Mike is going to put a 1 step menu
item to do that in a future release.
Sometimes one channel (usually blue) is larger than the rest and an
easier way to scale it for these (and other) purposes
would be nice. Something that works the way the current sliders do
when enabled. Every time you make an adjustment,
it updates the image and only when you are satisfied with the size
would you hit the Reset button.


These are all very interesting ideas!

Does anyone have an idea as to how all these ideas can be gathered
and kept in one place for future reference.

Mike


txduggan <tduggan@...>
 

--- In ImagesPlus@y..., "mlunsold" <mike@m...> wrote:

These are all very interesting ideas!

Does anyone have an idea as to how all these ideas can be gathered
and kept in one place for future reference.

Mike
They can be accumulated off list in a spreadsheet/database app then
uploaded to the Database section of the list. Or, have suggestions
entered directly into the list's Database section -OR- create a
website with a MS Access database (or some such db product) and
direct members there.

When a new member joins, word the introductory email in such a way
that they're attention is immediately drawn to the fact that an off-
list resource exists (or point them to the Database section of the
list)

I have no skills as to how to accomplish any of this...I'm just an
idea man...bleh...should have been a car salesman...

Just my .0002¢

TD


Shabowski, Bob <bob.shabowski@...>
 

Well,

For now I created a wishlist database in the database section. Anyone can
add suggestions. The moderator can modify / edit the database and / or
records if need be. I created three columns: Suggestion / Function Category
/ Submitted by.

We can use it if we want or at least till another idea is implemented.

Thanks

Bob Shabowski

-----Original Message-----
From: mlunsold [mailto:mike@...]
Sent: Thursday, February 21, 2002 1:38 PM
To: ImagesPlus@...
Subject: [ImagesPlus] Re: What's the first thing you do?


KenF wrote:
A couple of thoughts for further development.

1)
A planetary flattening routine that would bring the limbs closer in
brightness to the center.

2)
An adaptive routine that would increase the contrast across a reange of
brightnesses but leave the rest alone.

3)
A selection ability like many of the "normal" programs so you could draw an
area around say Jupiter, enhance the contrast and leave the moons alone.

4)
I think Mike is going to put a 1 step menu item to do that in a future
release. Sometimes one channel (usually blue) is larger than the rest and an
easier way to scale it for these (and other) purposes would be nice.
Something that works the way the current sliders do when enabled. Every time
you make an adjustment, it updates the image and only when you are satisfied
with the size would you hit the Reset button.


These are all very interesting ideas!

Does anyone have an idea as to how all these ideas can be gathered
and kept in one place for future reference.

Mike







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Ken Florentino <kflor@...>
 

Wonderful!

Ken

Well,

For now I created a wishlist database in the database section. Anyone can
add suggestions. The moderator can modify / edit the database and / or
records if need be. I created three columns: Suggestion / Function Category
/ Submitted by.

We can use it if we want or at least till another idea is implemented.

Thanks

Bob Shabowski