Moderated by: jk
My Photoshop Action that simulates Kodak Aerochrome film. -  Rate Topic 
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Posted by jk: Tue Aug 4th, 2020 16:43 1st Post
A little gift for those who want to see the IR world.
I have been trying to develop an Action for Photoshop that works with ordinary images or IR images and allows you to make a real IR conversion of a RAF/JPG taken in a camera that has been converted to IR use.

During development of the Action and its associated LUT it transpired that I managed to develop it to also use it with normal RAF/JPG from unconverted cameras.

So a double win for those who want to test it and use it.


The Action has been tested and works with Photoshop CS6 and up to the current Photoshop CC v21.x


Some instructions on how to use the Action and the LUT.
If you are an experienced Photoshop user then I apologise for keeping it simple.

Download and Installation.
Download the attached zip file to your Desktop.
Unzip the file and it will yield a directory called "Aero-LUT+ActionLUT" on your Desktop with three files in it.
These are called:
AeroIR-LUT.atn
AeroIR-LUT.3dl
AeroIR-LUT.cube


Installation for Photoshop.
I have an Actions folder in my Mac where I keep my actions and another where I keep my LUTs.

Copy the LUTs (AeroIR-LUT.3dl and AeroIR-LUT.cube) into the place your keep your LUTs.
Copy the Action into the place that you keep your Actions.

Then open Photoshop.
Load a file for testing.
Then open your Actions panel in Photoshop.
You now need to load the action called AeroIR-LUT.atn
If this works correctly then it will show at the bottom of your Actions list.
Click on the Action and it will run the action.
It may have problems loading the LUT as its is located differently on your machine to mine!

Attachment: Aero-LUT+ActionLUT.zip (Downloaded 0 times)



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Posted by jk: Tue Aug 4th, 2020 16:46 2nd Post
Installation for Photoshop.
I have an Actions folder in my Mac where I keep my actions and another where I keep my LUTs.

Copy the LUTs (AeroIR-LUT.3dl and AeroIR-LUT.cube) into the place your keep your LUTs.
Copy the Action into the place that you keep your Actions.

Then open Photoshop.
Open/Load an image file for testing.

Then open your Actions panel in Photoshop.
In the top right corner there is a set of lines which shows a menu of items for the Actions panel.
You now need to load the action called AeroIR-LUT.atn from the place you located it on your hard disk.
If this works correctly then it will show at the bottom of your Actions list.




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Click on the Action and it will run the action.
It may have problems loading the LUT as its is located differently on your machine to mine!
See next post.



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Posted by jk: Tue Aug 4th, 2020 16:48 3rd Post
Loading the LUT in case of problems.
The LUT is located in the directory you saved it to.
You can then Load the LUT from the LUT panel by clicking on the "Load 3D LUT" in the drop menu.
Once loaded the action will work.



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Posted by jk: Tue Aug 4th, 2020 16:49 4th Post
Changing your image colours.

If you want you can change the image colours that show in your image by changing the Hue slider in the HSL panel.




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Posted by jk: Tue Aug 4th, 2020 16:52 5th Post
Here is a Before and After image set.

This is from a straight (NON IR converted) camera.

Before.


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After.


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Posted by jk: Tue Aug 4th, 2020 16:55 6th Post
Here is a Before and After image set.
This is from a straight (Full Spectrum IR converted) camera.

1. No Conversion straight from camera.



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2. Khromageny action that does Channel Swapping.


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3. Using my Aerochrome simulation Action.


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Posted by jk: Tue Aug 4th, 2020 16:56 7th Post
As with any IR image from an IR converted camera the angle of the light and any filters used as well as the WB chosen will effect the resulting image at both the original image as well as the post-processed image.


I hope you enjoy the action.

If there are any questions or comments then please post questions to this thread.



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Posted by Robert: Tue Aug 4th, 2020 18:02 8th Post
Thank you JK, most interesting.



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Posted by jk: Tue Aug 4th, 2020 21:21 9th Post
Eric, If you have any comments then I would welcome them.



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Posted by Eric: Wed Aug 5th, 2020 20:57 10th Post
jk wrote:
Eric, If you have any comments then I would welcome them. It’s an interesting conversion process you’ve effected. I am probably not understanding exactly what you are trying to achieve?

Is it an IR image from an unconverted camera?


Purely as an IR image, the last image lacks mid tone detail. I wasn’t sure if you were expecting that to be done post - action? 

I am a bit of a pedant when it comes to IR in that I want /expect there to be white foliage.

In scenes like this (with no direct sunlight on the foliage) the foliage normally comes out much brighter than expected due to the fluorescence ...which the exposure meter doesn’t see or adjust for. To create the effect on your final image I would lift the mid tone areas and raise contrast. Not sure if that is your intended result?



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And I would crop it to focus more on the contrast between foliage and IR inert structures.



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Perhaps overdone the crop too much 😬

Last edited on Wed Aug 5th, 2020 21:08 by Eric



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Posted by jk: Wed Aug 5th, 2020 21:50 11th Post
I have an XE1 that is full spectrum (FS) IR converted.   I can convert these images via ACR or MetaRAW then treat these RAW files by standard R/B channel swapping (Khromageny action) to produce results similar to those you produced.
 
I developed my Action and LUT with an objective of being able to convert RAW files or already converted RAW to JPG files onwards in Photoshop to a final JPG that looked like the image had been in the Kodak Aerochrome film results.

https://petapixel.com/2019/02/05/this-lens-filter-faithfully-recreates-the-look-of-kodak-aerochrome-ir-film/

I dont tend to use lens mounted filters but I do have a pink/red filter that is meant to provide 530nm cut.
The blue one Kolari mentioned in the article, only sells in USA and is a horrible price when HMRC VAT and other rip off charges are applied.

I noticed when testing that my changing the sliders in the HSL layer I could get very similar results from images produced either from both normal cameras or FS IR converted cameras.  Also changing the WB does effect the processing results.

Notes:   In Aerochrome results foliage is red, not white, and skies are blue.
I probably should have shown some other examples of images taken in full and part sunlight rather than the very shaded derelict water wheel.

I will post some better images another day.



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Posted by Eric: Thu Aug 6th, 2020 07:01 12th Post
jk wrote:
I have an XE1 that is full spectrum (FS) IR converted.   I can convert these images via ACR or MetaRAW then treat these RAW files by standard R/B channel swapping (Khromageny action) to produce results similar to those you produced.
 
I developed my Action and LUT with an objective of being able to convert RAW files or already converted RAW to JPG files onwards in Photoshop to a final JPG that looked like the image had been in the Kodak Aerochrome film results.

https://petapixel.com/2019/02/05/this-lens-filter-faithfully-recreates-the-look-of-kodak-aerochrome-ir-film/

I dont tend to use lens mounted filters but I do have a pink/red filter that is meant to provide 530nm cut.
The blue one Kolari mentioned in the article, only sells in USA and is a horrible price when HMRC VAT and other rip off charges are applied.

I noticed when testing that my changing the sliders in the HSL layer I could get very similar results from images produced either from both normal cameras or FS IR converted cameras.  Also changing the WB does effect the processing results.

Notes:   In Aerochrome results foliage is red, not white, and skies are blue.
I probably should have shown some other examples of images taken in full and part sunlight rather than the very shaded derelict water wheel.

I will post some better images another day.
Ah...gotcha. I didn’t associate the Aerochrome name with that style of images. In which case your action seems to do an excellent job.👍

I have to say that I was never a fan of that colour shift....they are not restful, like a landscape should (in most land situations) be. IMHO of course 😆 

In common with the full spectrum IR, they can suffer from one thing.....too much foliage. One of the worst IR images I took was a garden with lawns bushes, trees all in full leaf, around a light stone building with ivy and a Virginia creeper all over it.  It was just WHITE everywhere. 😳

I soon realised that the inert parts of the scene need to dominate ....while the red / white foliage needs to be a mere supporting Actor.

Some of those Link images do that well but others swamp the image with RED. It can ruin the aesthetics. Again imho.

Interesting exercise though. I’ve never used/created LUTs myself.

Last edited on Thu Aug 6th, 2020 07:28 by Eric



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Posted by jk: Thu Aug 6th, 2020 11:14 13th Post
As promised.
Here are a pair of images from my Fuji XE1 converted to Full Spectrum use.  WB Preset may be different between images as I have three WB settings that I am currently testing with different filters and unfiltered.

First image is, "Unprocessed just `ACR' converted", and for the second image then processed on using my Action and LUT.



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Posted by jk: Thu Aug 6th, 2020 11:16 14th Post
Here are a pair of images from my Fuji XE1 converted to Full Spectrum use.  WB Preset may be different between images as I have three WB settings that I am currently testing with different filters and unfiltered.


First image is, "Unprocessed just `ACR' converted", and for the second image then processed on using my Action and LUT.




Click here to comment on this image.



Click here to comment on this image.



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Posted by jk: Thu Aug 6th, 2020 11:19 15th Post
Here are a pair of images from my Fuji XE1 converted to Full Spectrum use.  WB Preset may be different between images as I have three WB settings that I am currently testing with different filters and unfiltered.


First image is, "Unprocessed just `ACR' converted", and for the second image then processed on using my Action and LUT.




Click here to comment on this image.



Click here to comment on this image.



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Posted by jk: Thu Aug 6th, 2020 11:22 16th Post
Here are a pair of images from my Nikon Z7 camera use. 


First image is, "Unprocessed just `ACR' converted", and for the second image then processed on using my Action and LUT.  No further adjustments.




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Posted by jk: Thu Aug 6th, 2020 11:24 17th Post
Here are a pair of images from my Nikon D800 camera use.


First image is, "Unprocessed just `ACR' converted", and for the second image then processed on using my Action and LUT.  No further adjustments.




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Posted by jk: Thu Aug 6th, 2020 11:27 18th Post
Here are a pair of images from my Nikon D800 camera use.


First image is, "Unprocessed just `ACR' converted", and for the second image then processed on using my Action and LUT.  No further adjustments.


Aerochrome processing these images really messes with your head!!!



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Posted by jk: Thu Aug 6th, 2020 11:30 19th Post
Robert,  I think this may be a real challenge for some of your botanicals and it would be interesting to see the changes that happen with different flower species.

Eric,  I have adjusted these images at all as I wanted to show a before and after without doing a final polishing of results for each image.
My excuse for being lazy.  Also I am still working out which WB (in camera) and colour temperature in ACR works best.  Plus there is a need to adjust contrast and brightness for each image.  Still refining.



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Posted by jk: Thu Aug 6th, 2020 12:39 20th Post
Here is what happens when you start using the HSL Layer - Hue slider.



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Posted by jk: Thu Aug 6th, 2020 12:40 21st Post
Here is the same shot but at different WB levels.



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