Re: Adobe Lightroom 3.0 and DxO Optics Pro 6.2 Test


"Charles E Hardwidge" <boing@xxxxxxxxxxxxxxx> wrote in message
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"Pete" <available.on.request@xxxxxxxxxxxxxxx> wrote in message
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Macbeth does not work for colours that aren't on the chart. The camera
reviews that include a Macbeth colour checker show this very clearly.
Corporate colours are rarely on the chart, at least, not for long ;-

My pictures are taken from quite a distance and illuminated by a mixture
of twilight, sodium, mercury vapour, and various fluorescent lamps. All
sources are at different angles; the location and influence of some
sources vary considerably during the required shutter interval.

To its credit, auto white balance produces the most aesthetically
pleasing colour rendition and tonal differentiation yet it is,
understandably, hopelessly wrong from a corporate standpoint. Until I get
this figured out I have no chance of getting my images accepted for
anything other than entertainment.

I'm 99.999% sure I'll never achieve my goal so I must learn to enjoy the
journey instead - I may achieve that one...

I've got a Macbeth chart but apart from using it to create a custom DNG
profile have pretty much done nothing with it. Not really sure what to do
with it apart from the grey patch, and I have a card for that.

Ouch.

One option I'd thought of was to blend multiple images of different white
balances. Ricoh (in the links) are taking a ham fisted stab at that.

The brain handles post-processing very well even under insane lighting
conditions. If I had a better grip on the maths it would be tempting to
have a mess with writing a plugin.

Links:

http://www.ricoh.com/technology/tech/026.html
http://cameradojo.com/2009/05/31/spydercube-white-balance-tool-a-must-have-gadget/
http://blog.christhedunn.com/2009/03/19/white-balance-is-a-little-trickster/
http://community.acdsee.com/pro/2009/06/the-whys-of-white-balance-variable-light-contd/
http://www.colorcube.com/illusions/chrmadpt.htm

Update:

Just reading through the DxO Optics Pro 6.2 user guide for the first (duh)
and I notice it supports multi-point white balance. Not sure how it works or
whether it's any good but you could check it out.


--
Charles E Hardwidge

.

Relevant Pages

  • Re: Adobe Lightroom 3.0 and DxO Optics Pro 6.2 Test
    ... Corporate colours are rarely on the chart, at least, not for long;- ... My pictures are taken from quite a distance and illuminated by a mixture ... auto white balance produces the most aesthetically ... One option I'd thought of was to blend multiple images of different white ...
    (alt.photography)
  • Re: Adobe Lightroom 3.0 and DxO Optics Pro 6.2 Test
    ... Corporate colours are rarely on the chart, at least, not for long;- ... My pictures are taken from quite a distance and illuminated by a mixture ... auto white balance produces the most aesthetically pleasing ... One option I'd thought of was to blend multiple images of different white ...
    (alt.photography)