Display positive of ".psd negatives"

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TachyonX
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Display positive of ".psd negatives"

Post by TachyonX » Fri Dec 03, 2010 1:17 am

Okay, I must be a blind idiot. I have RTFM, searched the board and googled and
I haven't been able to figure out display negatives that I scanned to .psd format.
In other words I want to be able to view the positive images. I would greatly
appreciate any assistance in helping me overcome my ignorance!!!

TachyonX

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XnTriq
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Re: Help - How to display positive of ".psd negatives"

Post by XnTriq » Fri Dec 03, 2010 1:45 am

You would like to have View » Display Inverted in addition to Image » Map » Negative?

TachyonX
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Re: Help - How to display positive of ".psd negatives"

Post by TachyonX » Sat Dec 04, 2010 9:16 pm

XnTriq

Thank you for the response. I greatly appreciate it!!!! "Image >> Map >> Negative"
gets me partly where I would like to go. It works on an opened image. I was hoping
to be able to use XnView's "browser" and "slideshow" to display folders containing
a large number of negatives.

It must be the blind part of me being an idiot, but I can't find menu option for
"View >> Display Inverted". I am using XnView 1.97.4. Is this a newer feature?

Thank you again!!!!
TachyonX

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XnTriq
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Re: Help - How to display positive of ".psd negatives"

Post by XnTriq » Sat Dec 04, 2010 10:45 pm

TachyonX wrote:It must be the blind part of me being an idiot, but I can't find menu option for
"View >> Display Inverted". I am using XnView 1.97.4. Is this a newer feature?
Hello TachyonX,

Sorry for not being clear in my previous post. What I meant to say: “Would you like to request a feature which would allow images to be displayed inverted?”
If so, I can move this topic to the Suggestions forum.

TachyonX
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Re: Help - How to display positive of ".psd negatives"

Post by TachyonX » Sun Dec 05, 2010 12:41 am

XnTriq,

I gather from your response that there is no way to accomplish what I had hoped, other than
image by image. So, yes, then I would like to suggest that a "View >> Display Inverted" (Negative)
option be added so that one may view a folder of negatives, and/or as a slideshow!!!!

Thank you again for your help!!!!
TachyonX

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XnTriq
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Re: Display positive of ".psd negatives"

Post by XnTriq » Sun Dec 05, 2010 5:00 am

As a workaround, you can rely on XnView's batch processing capabilities for inverting your PSDs:
Links of interest:

TachyonX
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Re: Display positive of ".psd negatives"

Post by TachyonX » Sun Dec 05, 2010 4:37 pm

XnTriq

Thank you for the "Links of Interest"!!! I picked up a couple new interesting tibits
and insights.

I had thought about XnView 's Batch Proccessing, but I had hoped not to have to
keep two sets of files (negatives/positives). It will get me there for a small
project, but I have serveral hundred megabytes of negatives that I would like
to be able to view in the browser/slideshow. I would ask that you consider
adding the "Display >> View Inverted(Negative)" option you had mentioned.
I would think this benefit other individuals as well, as I suspect that I am not
the only person with a large number of scanned negative .psd files.

Thank you for your time and patience!!!!
TachyonX

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XnTriq
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Re: Display positive of ".psd negatives"

Post by XnTriq » Sun Dec 05, 2010 9:45 pm

TachyonX wrote:Thank you for your time and patience!!!!
No problem, TachyonX. You brought up an interesting question. I learned a thing or two while trying to find an answer.

We'll have to wait and see whether Pierre – the developer of XnView – agrees to implement this feature.

Anyway, welcome to the forum :-)

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oops66
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Re: Display positive of ".psd negatives"

Post by oops66 » Sun Dec 12, 2010 3:06 am

I strongly support this suggestion too (very useful) but not only for the negative display.
Why not by using a set of pre-defined special icc/icm profiles to have the negative display (plus some other standards icc profiles like B&W, sepia filter, equivalent classics colors B&H/hoya filters, etc... or customs icc profil) ????
PS: more especially for XnViewMP :)

see my old suggestion here, item 2-) To apply the ICC profile (as filter) :
http://newsgroup.xnview.com/viewtopic.p ... ter#p65322

For example, to try (into XnView 1.9x or MP0.32) this way: 2 icc files samples ( for sepia and B&W)
http://uploading.com/files/496b2938/icc2.zip/
Last edited by oops66 on Sun Dec 12, 2010 5:38 pm, edited 2 times in total.
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XnTriq
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Re: Display positive of ".psd negatives"

Post by XnTriq » Sun Dec 12, 2010 4:30 am

oops66 wrote:For example, to try (into XnView 1.9x or MP0.32) this way: 2 icc files samples ( for sepia and B&W)
http://uploading.com/files/258fb625/icc.zip/
What a smart solution, oops66 :o
I was about to ask you how this works, but now I get it!

<!-- // EDIT //
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oops66
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Re: Display positive of ".psd negatives"

Post by oops66 » Tue Dec 14, 2010 12:45 am

Hi Xntriq,
news icc samples: icc-samples1.zip - 218.6 KB
...In this case, all pictures are displayed on the screen (preview & view & Fullscreen mode) via the same "icc/icm filter" without to configure any things else.
(...But some XnView/XnViewMP icc/icm adjustments/behaviors needs to be modified to better implement this kind of functionality)
FI: I have made these 2 icc samples with lprof http://lprof.sourceforge.net/ (available in Ubuntu 10.04 depository) ; and via the calc (CIE Color Calculator: Converts among most of the CIE color models as well as providing correlated color temperature and standard RGB conversions.) http://www.brucelindbloom.com/ .
+ an "infinity" of combinations are also possible...
Thanks for your links Xntriq.

For an "automatic linear sepia transformation":
Image
Image
icc "linear grey filter":
Image
icc for samsung ttf lcd screen - colors space corrections:
Image

...For fun, i have tried to build an negative icc profile, so in a first step i have rotated the 3 colors but i do not know how to rotate the white to black (white point) and i do not know if it's possible within an icc file ?

Image
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XnTriq
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Re: Display positive of ".psd negatives"

Post by XnTriq » Wed Dec 15, 2010 11:30 pm

Thanks for your explanations, oops66 :D

I always wanted to learn more about color management, but I know it's not going to happen with my old CRT monitor which just refuses to die :P
oops66 wrote:FI: I have made these 2 icc samples with lprof http://lprof.sourceforge.net/ (available in Ubuntu 10.04 depository) ; and via the calc (CIE Color Calculator: Converts among most of the CIE color models as well as providing correlated color temperature and standard RGB conversions.) http://www.brucelindbloom.com/ .
+ an "infinity" of combinations are also possible...
I see that LPROF is built around Little CMS. PDF-XChange Viewer uses this too. Can you confirm this for XnView?
[color=green]xnview.exe[/color] wrote:

Code: Select all

0038F3D0    6F 6E 00 00 6C 63 6D 73 20 69 73 20 74 65 72 6D           on··lcms is term
0038F3E0    69 6E 61 74 69 6E 67 20 61 70 70 6C 69 63 61 74           inating applicat
0038F3F0    69 6F 6E 00 4C 69 74 74 6C 65 20 63 6D 73 00 00           ion·Little cms··

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oops66
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Re: Display positive of ".psd negatives"

Post by oops66 » Fri Dec 17, 2010 12:30 am

XnTriq wrote:...I always wanted to learn more about color management, but I know it's not going to happen with my old CRT monitor which just refuses to die :P ...
Hello Xntriq,
:)
As far I can see, it is not very easy to learn and play with icc profile and the desired result is often difficult to obtain (empirically or even by calculation) because the monitor screen needs to be calibrated first plus some parameters like the color temperature profile - the white point- (CIE Spectral Display curves: D50, D65,...,E type, custom type 6000k, etc...), the Gamma correction - black point, and the RGB parameters needs to be choose / adjusted, so a lot of combinations are allowed. (without relying on some inherent limitations due to this icc technology/functionality)

ImageImage
Image

Also see some tools:
http://www.brucelindbloom.com/
•CIE Spectral Display: Calculates and displays many useful CIE functions, such as the Standard Observers, the Standard Illuminants and blackbody radiators
•CIE Color Calculator: Converts among most of the CIE color models as well as providing correlated color temperature and standard RGB conversions.
http://www.easyrgb.com/index.php?X=MATH&H=03#text3

New icc samples:
icc-sample3.zip - 222.9 KB
+ a more realistic gray icc filter, and a "find red icc" function:
icc-samples4.zip - 885 bytes

PS: Does not work if an icc is already embedded into the images with (XnView 1.97-7 and also with XnViewMP 0.32)
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XnTriq
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Re: Display positive of ".psd negatives"

Post by XnTriq » Fri Apr 08, 2011 8:30 pm


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oops66
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Re: Display positive of ".psd negatives"

Post by oops66 » Fri Apr 08, 2011 8:56 pm

Thank you XnTriq for the information, it's very interesting
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