View single post by Eric
 Posted: Wed Jun 18th, 2014 04:50
Eric



Joined: Thu Apr 19th, 2012
Location: United Kingdom
Posts: 4424
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jk wrote:
Well I would be very pleased with those new images but then again I dont have your IR post processing skills. Mine never have the sky colour and rendering that you achieve. :-(

It's really not that involved.

I set the white and black point using Levels.
I then use an action that 'sharpens' by increasing contrast.
At this point I either bin the image for lying about its potential or look at extraneous colour.....

Firstly remove all unwanted colour. Ideally I like to only have yellows and maybe some reds in the image. So I go to Hue Sat and INCREASE THE LIGHTNESS of all the channels except yellow and red. (Don't desaturated as it makes those areas go grey.)

With a narrower band of colours available you get a purer flip eg just yellows to blues.

So if the image recommends a specific treatment eg blue sky, brown road...I create a second layer and do the channel mix swop on the blue and red channels.

Then erase the areas on the blue top layer to reveal the brown bottom layer parts.

After flattening the layers I go to Hue Sat and whack the saturation to maximum. This shows any areas in the image that may have retained spurious colour casts. Then after cancelling this change I just use the sponge tool to desat those spurious color areas AND THEN use the dodge tool on the same areas to lighten them (same reason as the earlier comment).

For me it's all about getting the whites white, the blacks black and leaving colour in areas that recommend it.

But the biggest step is only taking images that have a strong non IR interest factor. Too much shrubbery, grass or trees just swamps the eye...whether green or white.

;-)



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Eric