Re: [MaxImDL] Re: Problems working with many applications


Feb 20 7:17 PM

 


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

#16731 Feb 20 7:17 PM

I took a composite fits image of Saturn with a Meade DSI. Opened it

up in Maxim DL and did some processing. I saved it as tiff, and tried

to open it in photoshop, however, I got a pure white image. I tried

jpeg in maxim dl, white image in PS and with the generic windows

viewer.



Then I took these fits images and aligned and stacked them in K3CCD

tools for the three colors. I was going to combine them in PS,

however, only one opened in PS. The other two were pure black.



This is really annoying that I can't work between apps.



Anybody can help?



Steve



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

#16733 Feb 21 4:28 AM

Steve

This drove me a bit crazy at first as well. I got used to a set

routine though and have followed it since. I use Maxim DL for imaging

and Eddie Trimarchi's FITS plug-in for Photoshop (CS). I still

perform a few processing steps in AstroArt occassionally.

I use Maxim to combine the master LRGB or narrowband images. I save

these in FITS format. I then open them in PS with Eddie's plugin. Due

to the nature of astrophotos, the 16 bit images comes up black, or

very dark with little showing. In Maxim, the auto screen stretch is

at work. I simply do interative screen stretches with the levles tool

until the data has been compressed, then save this as a 16 bit FITS

or TIFF that can be used in other applications without the screen

stretch.

HTH some.

Charlie (also in Orlando)

www.astrofx.com

l







--- In MaxImDL@yahoogroups.com, "stevenorlando" stevenorlando@h...>

wrote: >

> I took a composite fits image of Saturn with a Meade DSI. Opened it

> up in Maxim DL and did some processing. I saved it as tiff, and

tried > to open it in photoshop, however, I got a pure white image. I tried

> jpeg in maxim dl, white image in PS and with the generic windows

> viewer.

>

> Then I took these fits images and aligned and stacked them in K3CCD

> tools for the three colors. I was going to combine them in PS,

> however, only one opened in PS. The other two were pure black.

>

> This is really annoying that I can't work between apps.

>

> Anybody can help?

>

> Steve



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

#16734 Feb 21 6:58 AM

Steve;



Did you open Levels in PS and slide whits point slider? I bet you'll see your data. Just learning Maxim to PS myself. Can't explain why the image in Maxim, stretched and saved, shows black in PS...joe :)





"May You Go Among The Imperishable Stars"



Joe Mize: jmize@...

StarFields Observatory www.cav-sfo.com

Chiefland, FL 29:24'33.4"N 82:51'37.7"W

Moon Phase: tycho.usno.navy.mil/cgi-bin/phase.gif

----- Original Message -----

From: stevenorlando

To: MaxImDL@yahoogroups.com

Sent: Sunday, February 20, 2005 10:17 PM

Subject: [MaxImDL] Problems working with many applications







I took a composite fits image of Saturn with a Meade DSI. Opened it

up in Maxim DL and did some processing. I saved it as tiff, and tried

to open it in photoshop, however, I got a pure white image. I tried

jpeg in maxim dl, white image in PS and with the generic windows

viewer.



Then I took these fits images and aligned and stacked them in K3CCD

tools for the three colors. I was going to combine them in PS,

however, only one opened in PS. The other two were pure black.



This is really annoying that I can't work between apps.



Anybody can help?



Steve









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

#16735 Feb 21 7:07 AM

Steve-



These sound like the sort of problems you can get when 16-bit data gets

converted to 8-bit data. That will always happen if you use JPEG format, and

can easily happen with TIFFs.



When you save a file in Maxim, you have the opportunity to save in 16-bit

format (or higher), although it is easy to miss this option. I'd suggest

always saving in FITS format, and watching closely for the little warning

Maxim inserts in its Save dialog if any information is going to be clipped.



Once you have the data in FITS format, you can open it in Photoshop using

the FITS Liberator plugin. You can use Eddie Trimarchi's FITS plugin, too,

but FITS Liberator is much better. I'd recommend having both installed,

because Eddie's program will also allow you to save from Photoshop in FITS

format.



Chris



*****************************************

Chris L Peterson

Cloudbait Observatory

www.cloudbait.com



----- Original Message -----

From: "stevenorlando" stevenorlando@...>

To: MaxImDL@yahoogroups.com>

Sent: Sunday, February 20, 2005 8:17 PM

Subject: [MaxImDL] Problems working with many applications





>

>

> I took a composite fits image of Saturn with a Meade DSI. Opened it

> up in Maxim DL and did some processing. I saved it as tiff, and tried

> to open it in photoshop, however, I got a pure white image. I tried

> jpeg in maxim dl, white image in PS and with the generic windows

> viewer.

>

> Then I took these fits images and aligned and stacked them in K3CCD

> tools for the three colors. I was going to combine them in PS,

> however, only one opened in PS. The other two were pure black.

>

> This is really annoying that I can't work between apps.

>

> Anybody can help?

>

> Steve







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

#16736 Feb 21 7:12 AM

Charlie;



Exactly what I found too. Question, when using the Screen Stretch in Maxim and saving it does the screen stretch get saved? Or is Screen Stretch only for screen presentation? Maybe the Stretch option in Processes is different and would save.



Another question, FITS Liborator, what do you do? I've been playing with the 'a (sqrt+log)', 3rd one down, function which stretches the data actross the range, then leaving the black point slider alone but sliding the white point slider all the way to the left before okaying to open.



Now my last question. Do you assign a workspace profile when the image opens in PS? If so which, "Dot Gain 20%" or "Dot Gain 10% then Convert" options? (There, that'll keep ya busy for a while. :)) ...joe :)





"May You Go Among The Imperishable Stars"



Joe Mize: jmize@...

StarFields Observatory www.cav-sfo.com

Chiefland, FL 29:24'33.4"N 82:51'37.7"W

Moon Phase: tycho.usno.navy.mil/cgi-bin/phase.gif

----- Original Message -----

From: Charlie Warren

To: MaxImDL@yahoogroups.com

Sent: Monday, February 21, 2005 7:28 AM

Subject: [MaxImDL] Re: Problems working with many applications







Steve

This drove me a bit crazy at first as well. I got used to a set

routine though and have followed it since. I use Maxim DL for imaging

and Eddie Trimarchi's FITS plug-in for Photoshop (CS). I still

perform a few processing steps in AstroArt occassionally.

I use Maxim to combine the master LRGB or narrowband images. I save

these in FITS format. I then open them in PS with Eddie's plugin. Due

to the nature of astrophotos, the 16 bit images comes up black, or

very dark with little showing. In Maxim, the auto screen stretch is

at work. I simply do interative screen stretches with the levles tool

until the data has been compressed, then save this as a 16 bit FITS

or TIFF that can be used in other applications without the screen

stretch.

HTH some.

Charlie (also in Orlando)

www.astrofx.com

l







--- In MaxImDL@yahoogroups.com, "stevenorlando" stevenorlando@h...>

wrote:

>

> I took a composite fits image of Saturn with a Meade DSI. Opened it

> up in Maxim DL and did some processing. I saved it as tiff, and

tried

> to open it in photoshop, however, I got a pure white image. I tried

> jpeg in maxim dl, white image in PS and with the generic windows

> viewer.

>

> Then I took these fits images and aligned and stacked them in K3CCD

> tools for the three colors. I was going to combine them in PS,

> however, only one opened in PS. The other two were pure black.

>

> This is really annoying that I can't work between apps.

>

> Anybody can help?

>

> Steve











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

#16738 Feb 21 7:25 AM

Chris;



Thkx for the FITS clip warning in Maxim. I'll start watching for it. I noticed when I use FITS Liberator the image deminsions get changed from 2822.222DPI to 72DPI. Do you know a way to keep this from happening?



Also, do you know any way to save in in PS as FITS? I have CS, it doesn't seem to allow saving as FITS, even switching to 8bit doesn't reveal this format. Thkx...joe :)





"May You Go Among The Imperishable Stars"



Joe Mize: jmize@...

StarFields Observatory www.cav-sfo.com

Chiefland, FL 29:24'33.4"N 82:51'37.7"W

Moon Phase: tycho.usno.navy.mil/cgi-bin/phase.gif

----- Original Message -----

From: Chris Peterson

To: MaxImDL@yahoogroups.com

Sent: Monday, February 21, 2005 10:07 AM

Subject: Re: [MaxImDL] Problems working with many applications





Steve-



These sound like the sort of problems you can get when 16-bit data gets

converted to 8-bit data. That will always happen if you use JPEG format, and

can easily happen with TIFFs.



When you save a file in Maxim, you have the opportunity to save in 16-bit

format (or higher), although it is easy to miss this option. I'd suggest

always saving in FITS format, and watching closely for the little warning

Maxim inserts in its Save dialog if any information is going to be clipped.



Once you have the data in FITS format, you can open it in Photoshop using

the FITS Liberator plugin. You can use Eddie Trimarchi's FITS plugin, too,

but FITS Liberator is much better. I'd recommend having both installed,

because Eddie's program will also allow you to save from Photoshop in FITS

format.



Chris



*****************************************

Chris L Peterson

Cloudbait Observatory

www.cloudbait.com





----- Original Message -----

From: "stevenorlando" stevenorlando@...>

To: MaxImDL@yahoogroups.com>

Sent: Sunday, February 20, 2005 8:17 PM

Subject: [MaxImDL] Problems working with many applications





>

>

> I took a composite fits image of Saturn with a Meade DSI. Opened it

> up in Maxim DL and did some processing. I saved it as tiff, and tried

> to open it in photoshop, however, I got a pure white image. I tried

> jpeg in maxim dl, white image in PS and with the generic windows

> viewer.

>

> Then I took these fits images and aligned and stacked them in K3CCD

> tools for the three colors. I was going to combine them in PS,

> however, only one opened in PS. The other two were pure black.

>

> This is really annoying that I can't work between apps.

>

> Anybody can help?

>

> Steve





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

#16739 Feb 21 7:44 AM

Joe-



The DPI setting is essentially meaningless, so don't worry about it. It is

only relevant in combination with the image size when printing. All you care

about is the number of pixels, and that doesn't change when you import the

file.



Use Eddie Trimarchi's plugin for saving from PS in FITS format. If you have

the plugin installed, you will see FitsPlug in the list of available file

types in the save dialog.



Chris



*****************************************

Chris L Peterson

Cloudbait Observatory

www.cloudbait.com



----- Original Message -----

From: "joe" jmize@...>

To: MaxImDL@yahoogroups.com>

Sent: Monday, February 21, 2005 8:25 AM

Subject: Re: [MaxImDL] Problems working with many applications





>

> Chris;

>

> Thkx for the FITS clip warning in Maxim. I'll start watching for it.

> I noticed when I use FITS Liberator the image deminsions get changed from

> 2822.222DPI to 72DPI. Do you know a way to keep this from happening?

>

> Also, do you know any way to save in in PS as FITS? I have CS, it

> doesn't seem to allow saving as FITS, even switching to 8bit doesn't

> reveal this format. Thkx...joe :)



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

#16740 Feb 21 8:33 AM

Chris;



Plug-ins, more Plug-ins. :)) Is there any 'real' advantage saving in FITS vs. TIFF? Didn't pickup Eddie's FITS Plug-in, opted for ESA's FITS Liberator instead. Thkx for your info...joe :)





"May You Go Among The Imperishable Stars"



Joe Mize: jmize@...

StarFields Observatory www.cav-sfo.com

Chiefland, FL 29:24'33.4"N 82:51'37.7"W

Moon Phase: tycho.usno.navy.mil/cgi-bin/phase.gif

----- Original Message -----

From: Chris Peterson

To: MaxImDL@yahoogroups.com

Sent: Monday, February 21, 2005 10:44 AM

Subject: Re: [MaxImDL] Problems working with many applications





Joe-



The DPI setting is essentially meaningless, so don't worry about it. It is

only relevant in combination with the image size when printing. All you care

about is the number of pixels, and that doesn't change when you import the

file.



Use Eddie Trimarchi's plugin for saving from PS in FITS format. If you have

the plugin installed, you will see FitsPlug in the list of available file

types in the save dialog.



Chris



*****************************************

Chris L Peterson

Cloudbait Observatory

www.cloudbait.com





----- Original Message -----

From: "joe" jmize@...>

To: MaxImDL@yahoogroups.com>

Sent: Monday, February 21, 2005 8:25 AM

Subject: Re: [MaxImDL] Problems working with many applications





>

> Chris;

>

> Thkx for the FITS clip warning in Maxim. I'll start watching for it.

> I noticed when I use FITS Liberator the image deminsions get changed from

> 2822.222DPI to 72DPI. Do you know a way to keep this from happening?

>

> Also, do you know any way to save in in PS as FITS? I have CS, it

> doesn't seem to allow saving as FITS, even switching to 8bit doesn't

> reveal this format. Thkx...joe :)





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

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

#16741 Feb 21 8:42 AM

The advantage of FITS is that it is a standard for astronomical images, so

it is very widely supported. Another advantage is that it has the ability to

maintain all of your exposure and processing history in its header (in

theory, so could TIFF, but this is rarely done). Finally, TIFF is limited to

16-bit integer data, while FITS can contain 32-bit integer and floating

point data- often useful after some processing.



For importing data, FITS Liberator is better than Eddie's plugin. I use the

former for imports, the latter for exports. It is definitely worth having

both.



Chris



*****************************************

Chris L Peterson

Cloudbait Observatory

www.cloudbait.com



----- Original Message -----

From: "joe" jmize@...>

To: MaxImDL@yahoogroups.com>

Sent: Monday, February 21, 2005 9:33 AM

Subject: Re: [MaxImDL] Problems working with many applications





>

> Chris;

>

> Plug-ins, more Plug-ins. :)) Is there any 'real' advantage saving in

> FITS vs. TIFF? Didn't pickup Eddie's FITS Plug-in, opted for ESA's FITS

> Liberator instead. Thkx for your info...joe :)







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

#16742 Feb 21 8:48 AM

Gotcha. :)) I'm off to locate Eddie's FITS Plug-in. Would you have a Link?...joe :)





"May You Go Among The Imperishable Stars"



Joe Mize: jmize@...

StarFields Observatory www.cav-sfo.com

Chiefland, FL 29:24'33.4"N 82:51'37.7"W

Moon Phase: tycho.usno.navy.mil/cgi-bin/phase.gif

----- Original Message -----

From: Chris Peterson

To: MaxImDL@yahoogroups.com

Sent: Monday, February 21, 2005 11:42 AM

Subject: Re: [MaxImDL] Problems working with many applications





The advantage of FITS is that it is a standard for astronomical images, so

it is very widely supported. Another advantage is that it has the ability to

maintain all of your exposure and processing history in its header (in

theory, so could TIFF, but this is rarely done). Finally, TIFF is limited to

16-bit integer data, while FITS can contain 32-bit integer and floating

point data- often useful after some processing.



For importing data, FITS Liberator is better than Eddie's plugin. I use the

former for imports, the latter for exports. It is definitely worth having

both.



Chris



*****************************************

Chris L Peterson

Cloudbait Observatory

www.cloudbait.com





----- Original Message -----

From: "joe" jmize@...>

To: MaxImDL@yahoogroups.com>

Sent: Monday, February 21, 2005 9:33 AM

Subject: Re: [MaxImDL] Problems working with many applications





>

> Chris;

>

> Plug-ins, more Plug-ins. :)) Is there any 'real' advantage saving in

> FITS vs. TIFF? Didn't pickup Eddie's FITS Plug-in, opted for ESA's FITS

> Liberator instead. Thkx for your info...joe :)





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

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[Non-text portions of this message have been removed]



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

#16743 Feb 21 9:13 AM

astroshed.com/fitsplug/fitsplug.htm



I find the old (shareware) version perfectly acceptable for my purposes in

occasionally exporting a FITS file from PS. Of course, there is much more

functionality in the full version. For importing data, however, FITS

Liberator is a lot more flexible- in fact, its scaling options are so good

that I no longer do any processing in Maxim beyond image calibration and

combination. Once a stacked image is built, I bring it into Photoshop using

FITS Liberator, selecting the appropriate transfer function at that time.

The remainder of my processing is in PS, taking full advantage of layers.



Chris



*****************************************

Chris L Peterson

Cloudbait Observatory

www.cloudbait.com



----- Original Message -----

From: "joe" jmize@...>

To: MaxImDL@yahoogroups.com>

Sent: Monday, February 21, 2005 9:48 AM

Subject: Re: [MaxImDL] Problems working with many applications





>

> Gotcha. :)) I'm off to locate Eddie's FITS Plug-in. Would you have a

> Link?...joe :)



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

#16744 Feb 21 9:17 AM

Goggle: [FITS Photoshop ]



Yields:



www.spacetelescope.org/projects/fits_liberator/



astroshed.com/fitsplug/fitsplug.htm



Chris Peterson wrote:

>astroshed.com/fitsplug/fitsplug.htm

>

>I find the old (shareware) version perfectly acceptable for my purposes in

>occasionally exporting a FITS file from PS. Of course, there is much more

>functionality in the full version. For importing data, however, FITS

>Liberator is a lot more flexible- in fact, its scaling options are so good

>that I no longer do any processing in Maxim beyond image calibration and

>combination. Once a stacked image is built, I bring it into Photoshop using

>FITS Liberator, selecting the appropriate transfer function at that time.

>The remainder of my processing is in PS, taking full advantage of layers.

>

>Chris

>

>*****************************************

>Chris L Peterson

>Cloudbait Observatory

>www.cloudbait.com

>

>

>----- Original Message -----

>From: "joe" jmize@...>

>To: MaxImDL@yahoogroups.com>

>Sent: Monday, February 21, 2005 9:48 AM

>Subject: Re: [MaxImDL] Problems working with many applications

>

>

>

>

>>Gotcha. :)) I'm off to locate Eddie's FITS Plug-in. Would you have a

>>Link?...joe :)

>>

>>

>

>

>

>

>

>Yahoo! Groups Links

>

>

>

>

>

>

>

>







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

#16745 Feb 21 9:41 AM

Thkx Chris...joe :)





"May You Go Among The Imperishable Stars"



Joe Mize: jmize@...

StarFields Observatory www.cav-sfo.com

Chiefland, FL 29:24'33.4"N 82:51'37.7"W

Moon Phase: tycho.usno.navy.mil/cgi-bin/phase.gif

----- Original Message -----

From: Chris Peterson

To: MaxImDL@yahoogroups.com

Sent: Monday, February 21, 2005 12:13 PM

Subject: Re: [MaxImDL] Problems working with many applications





astroshed.com/fitsplug/fitsplug.htm



I find the old (shareware) version perfectly acceptable for my purposes in

occasionally exporting a FITS file from PS. Of course, there is much more

functionality in the full version. For importing data, however, FITS

Liberator is a lot more flexible- in fact, its scaling options are so good

that I no longer do any processing in Maxim beyond image calibration and

combination. Once a stacked image is built, I bring it into Photoshop using

FITS Liberator, selecting the appropriate transfer function at that time.

The remainder of my processing is in PS, taking full advantage of layers.



Chris



*****************************************

Chris L Peterson

Cloudbait Observatory

www.cloudbait.com





----- Original Message -----

From: "joe" jmize@...>

To: MaxImDL@yahoogroups.com>

Sent: Monday, February 21, 2005 9:48 AM

Subject: Re: [MaxImDL] Problems working with many applications





>

> Gotcha. :)) I'm off to locate Eddie's FITS Plug-in. Would you have a

> Link?...joe :)





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Get unlimited calls to



U.S./Canada









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

Yahoo! Groups Links



a.. To visit your group on the web, go to:

groups.yahoo.com/group/MaxImDL/



b.. To unsubscribe from this group, send an email to:

MaxImDL-unsubscribe@yahoogroups.com



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[Non-text portions of this message have been removed]



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

#16746 Feb 21 9:42 AM

Thkx Dale...jeo :)





"May You Go Among The Imperishable Stars"



Joe Mize: jmize@...

StarFields Observatory www.cav-sfo.com

Chiefland, FL 29:24'33.4"N 82:51'37.7"W

Moon Phase: tycho.usno.navy.mil/cgi-bin/phase.gif

----- Original Message -----

From: Dale J. Chatham

To: MaxImDL@yahoogroups.com

Sent: Monday, February 21, 2005 12:17 PM

Subject: Re: [MaxImDL] Problems working with many applications





Goggle: [FITS Photoshop ]



Yields:



www.spacetelescope.org/projects/fits_liberator/



astroshed.com/fitsplug/fitsplug.htm



Chris Peterson wrote:



>astroshed.com/fitsplug/fitsplug.htm

>

>I find the old (shareware) version perfectly acceptable for my purposes in

>occasionally exporting a FITS file from PS. Of course, there is much more

>functionality in the full version. For importing data, however, FITS

>Liberator is a lot more flexible- in fact, its scaling options are so good

>that I no longer do any processing in Maxim beyond image calibration and

>combination. Once a stacked image is built, I bring it into Photoshop using

>FITS Liberator, selecting the appropriate transfer function at that time.

>The remainder of my processing is in PS, taking full advantage of layers.

>

>Chris

>

>*****************************************

>Chris L Peterson

>Cloudbait Observatory

>www.cloudbait.com

>

>

>----- Original Message -----

>From: "joe" jmize@...>

>To: MaxImDL@yahoogroups.com>

>Sent: Monday, February 21, 2005 9:48 AM

>Subject: Re: [MaxImDL] Problems working with many applications

>

>

>

>

>>Gotcha. :)) I'm off to locate Eddie's FITS Plug-in. Would you have a

>>Link?...joe :)

>>

>>

>

>

>

>

>

>Yahoo! Groups Links

>

>

>

>

>

>

>

>







Yahoo! Groups Sponsor



Get unlimited calls to



U.S./Canada









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

Yahoo! Groups Links



a.. To visit your group on the web, go to:

groups.yahoo.com/group/MaxImDL/



b.. To unsubscribe from this group, send an email to:

MaxImDL-unsubscribe@yahoogroups.com



c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.







[Non-text portions of this message have been removed]



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

#16751 Feb 21 9:02 PM

Joe

See below



In a message dated 2/21/2005 10:14:34 AM Eastern Standard Time,

jmize@... writes:

Charlie;



Exactly what I found too. Question, when using the Screen Stretch in

Maxim and saving it does the screen stretch get saved? Or is Screen Stretch

only for screen presentation? Maybe the Stretch option in Processes is different

and would save.

The screen stretch is just that. It does not alter the data. You can save the

screen stretch though. Under the File menu select Save As, then in the dialog

box at the bottom left you will see the "stretch" option button. This bring

up another dialog box. Leave the "Linear Only" selected for the Permanent

stretch type. Select the screen stretch radio button for the Input type.

Now you have made the screen stretch permanent. Save under a different name

as you have now altered the original data.





Another question, FITS Liborator, what do you do? I've been playing

with the 'a (sqrt+log)', 3rd one down, function which stretches the data actross

the range, then leaving the black point slider alone but sliding the white

point slider all the way to the left before okaying to open.

I have not used FITS liberator for a while. I did get proficient with it, but

have forgotten the settings I used. I prefer Eddie Trimarchi's FITS plugin

for Photoshop. I paid the small fee for the full feature version, and it can

even import color FITS files. It does require going through the iterative levels

stretch, but I have actually come to like this as it gives me a lot of control

over the data.





Now my last question. Do you assign a workspace profile when the image

opens in PS? If so which, "Dot Gain 20%" or "Dot Gain 10% then Convert"

options? (There, that'll keep ya busy for a while. :)) ...joe :)

Right now, I am choosing to "not assign" a profile. With a calibrated

monitor, I seem to get a closer match when I convert to 8 bit and jpeg for web

posting than I did when I was using the Adobe RGB profile and then converting. I

have calibrated my screen with the Canon i9900 printer, so it prints very nicely

as well.

Happy processing!

Charlie

www.astrofx.com









"May You Go Among The Imperishable Stars"





[Non-text portions of this message have been removed]







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

#16752 Feb 21 10:38 PM

Thkx Charlie for your answers. I'm ordering Eddie's FITS Plug-in...joe :)





"May You Go Among The Imperishable Stars"



Joe Mize: jmize@...

StarFields Observatory www.cav-sfo.com

Chiefland, FL 29:24'33.4"N 82:51'37.7"W

Moon Phase: tycho.usno.navy.mil/cgi-bin/phase.gif

----- Original Message -----

From: Astrofx@...

To: MaxImDL@yahoogroups.com

Sent: Tuesday, February 22, 2005 12:02 AM

Subject: Re: [MaxImDL] Re: Problems working with many applications





Joe

See below



In a message dated 2/21/2005 10:14:34 AM Eastern Standard Time,

jmize@... writes:

Charlie;



Exactly what I found too. Question, when using the Screen Stretch in

Maxim and saving it does the screen stretch get saved? Or is Screen Stretch

only for screen presentation? Maybe the Stretch option in Processes is different

and would save.

The screen stretch is just that. It does not alter the data. You can save the

screen stretch though. Under the File menu select Save As, then in the dialog

box at the bottom left you will see the "stretch" option button. This bring

up another dialog box. Leave the "Linear Only" selected for the Permanent

stretch type. Select the screen stretch radio button for the Input type.

Now you have made the screen stretch permanent. Save under a different name

as you have now altered the original data.





Another question, FITS Liborator, what do you do? I've been playing

with the 'a (sqrt+log)', 3rd one down, function which stretches the data actross

the range, then leaving the black point slider alone but sliding the white

point slider all the way to the left before okaying to open.

I have not used FITS liberator for a while. I did get proficient with it, but

have forgotten the settings I used. I prefer Eddie Trimarchi's FITS plugin

for Photoshop. I paid the small fee for the full feature version, and it can

even import color FITS files. It does require going through the iterative levels

stretch, but I have actually come to like this as it gives me a lot of control

over the data.





Now my last question. Do you assign a workspace profile when the image

opens in PS? If so which, "Dot Gain 20%" or "Dot Gain 10% then Convert"

options? (There, that'll keep ya busy for a while. :)) ...joe :)

Right now, I am choosing to "not assign" a profile. With a calibrated

monitor, I seem to get a closer match when I convert to 8 bit and jpeg for web

posting than I did when I was using the Adobe RGB profile and then converting. I

have calibrated my screen with the Canon i9900 printer, so it prints very nicely

as well.

Happy processing!

Charlie

www.astrofx.com









"May You Go Among The Imperishable Stars"





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