HDR Processing under multiple light sources

[st599]

Hi all

I recently had the chance to take some photos at the Natural History Museum. I wanted to play with HDR. http://www.talkphotography.co.uk/forums/showthread.php?t=510705

As I said in the original thread, my personal preference for HDR is to only use it to extend the range of stops in an image, so to use an underexposed image to reveal detain in the highlights and an overexposed image for detail in the shadows.

I'm really happy with the images. My only question is about the first image, the top half is naturally lit and the alcoves by tungsten or sodium. This leads to a slight orange tinge in the bottom half of the image.

I processed these with Luminance HDR (http://qtpfsgui.sourceforge.net) with their new anti-ghosting. Does anyone know of a method to combine 2 sets of multiple exposure images with different colour temperatures?

 

[russellsnr]

Hi, OnOne have a software that allows the user to widen the transition between photographs that IMO works very well, 'Perfect Brush'.
The Perfect Brush is again IMO very easy to use and does a great job to allow that soft edge you maybe need.
There is a tut but is on sky rather than colour but gives an idea what is possible.
http://www.ononesoftware.com/learn/training/video/using-the-updated-perfect-brush/


Russ

 

[markmullen]

I'd create two (or more) images, then open them as layers in photoshop and blend them as required, usually with a layer mask and painting in and out bits as required.

 

[Vivid Art]

If you save the HDR images as Tiffs you can then run them through the software again, but I would favor the photoshop laying method mentioned above, as you will have a lot more control.