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IR works in Scotland too!   -   Page   2
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Posted: Thu Jun 4th, 2015 17:24
 
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Fine aet of images Eric.
I love your different processing of the skies using different HSL toget blue or sepia or normal B&W. It really makes the images come alive.



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Posted: Fri Jun 5th, 2015 09:47
 
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jk wrote:
Fine aet of images Eric.
I love your different processing of the skies using different HSL toget blue or sepia or normal B&W. It really makes the images come alive.


Thanks JK

I would like to say it took lots of skill ...but the truth is it is relatively easy to separate foliage from none IR responsive elements as there is a slight blue cast to the whites and a brown cast to the darker tones. It's simply a matter of using this colour difference to separate the elements and treat them accordingly. I finally desaturate the whites and some of the grey (under exposed ) areas of foliage completely... to further enhance the effect.



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Posted: Fri Jun 5th, 2015 11:29
 
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Eric wrote:
jk wrote:
Fine aet of images Eric.
I love your different processing of the skies using different HSL toget blue or sepia or normal B&W. It really makes the images come alive.


Thanks JK

I would like to say it took lots of skill ...but the truth is it is relatively easy to separate foliage from none IR responsive elements as there is a slight blue cast to the whites and a brown cast to the darker tones. It's simply a matter of using this colour difference to separate the elements and treat them accordingly.


How do you do that?



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Posted: Fri Jun 5th, 2015 11:45
 
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Here is the same image developed in Lightroom 6 with the profile RedBlueSwap.
It works but it isnt as easy to work with as the Photoshop equivalent.

LR6 version


Attachment: XE1IR-1-0073.jpg (Downloaded 17 times)



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Posted: Fri Jun 5th, 2015 11:48
 
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PS CS6 with Khromageny and a few HSL tweaks.

Attachment: Photoshop version.jpg (Downloaded 17 times)



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Posted: Fri Jun 5th, 2015 12:02
 
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jk wrote:
Eric wrote:
jk wrote:
Fine aet of images Eric.
I love your different processing of the skies using different HSL toget blue or sepia or normal B&W. It really makes the images come alive.


Thanks JK

I would like to say it took lots of skill ...but the truth is it is relatively easy to separate foliage from none IR responsive elements as there is a slight blue cast to the whites and a brown cast to the darker tones. It's simply a matter of using this colour difference to separate the elements and treat them accordingly.



How do you do that?


Well assuming you have a sepia brownish image before doing anything...just click on auto colour to get an idea.

It's just a matter of setting YOUR white and black points in the image, using the Plowden technique*.






*Open file in Levels.
Take the left Black slider right across to the right till all the image disappears ...move it back slowly till a part of the image appears....that's your white point. shift click the white eye dropper on that spot to make a reference mark.
Then move the slider back to far left resting place. This time move the right White slider across to the left. Then slowly move it back till the image starts to appear...that's your black point. Use shift click on this point with the black eye dropper to leave a reference mark on the image.
Return all sliders to default position and using the white dropper click on the mark on the image...do same with black dropper and its mark on image.



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Posted: Fri Jun 5th, 2015 12:08
 
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Straight PS CS6 and Khromageny no tweaks.

Attachment: XE1IR-1-0073-Khromageny.jpg (Downloaded 16 times)



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Posted: Fri Jun 5th, 2015 12:13
 
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jk wrote:
PS CS6 with Khromageny and a few HSL tweaks.

You would struggle to separate whites from a cloudy day image. I rarely shoot IR on overcast days unless their is a glimmer of hope the sun will come out. Here's an example of what the sun does....

Attachment: image.jpg (Downloaded 15 times)



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Posted: Fri Jun 5th, 2015 12:20
 
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jk wrote:
Straight PS CS6 and Khromageny no tweaks.



There is always an element of suck it and see. But try this....

Duplicate the image on a layer.....to keep the sky!

On the top layer do the Plowden technique IGNORING the sky ...ie get a white and black ( or near as possible) in the bottom foliage half of the image.

Erase the burnt out sky gradually to reveal the original exposure sky.

You have now separated the foliage element from the sky.



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Posted: Fri Jun 5th, 2015 12:31
 
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Only got access on iPad at moment but top layer should look more like this...

Attachment: image.jpg (Downloaded 12 times)



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