Print

Print


I like the original better.

On Thu, Jun 2, 2011 at 11:06 PM, Dylan Gamache <
[log in to unmask]> wrote:

> here's a quick example of 4 adjustment clicks...
>
> http://www.cs.uvm.edu/%7Ejauerbac/pics/05-30-11/aaron_ski.jpg
>
> http://www.backtotheearthgroup.com/photos/fix.jpg
>
>
> Software won't really help so much as an understanding of what is wrong
> with the pictures.
>
> The inherent problem is that the sun light angle is flaring your lens, and
> causing illusory brightness in your scene. The camera doesn't know this, and
> is trying to process the image with its built-in algos. Since the scene
> isn't real (the brightness is a function of the lens being flared, not the
> illumination of the scene) the camera is going to fail in trying to process
> the image.
>
> As such, what you can do is apply the correct development scheme manually.
> You won't be able to make the picture Powder Magazine cover worthy no matter
> what without a stronger composition, but you can at least make it look
> decently lighted to share the experience with us.
>
> So what's the problem with the image that is caused by the lens flare?
> Answer: the lens flare reduces the contrast of the scene, and also is
> providing an uneven burn/dodge pattern across the image. The camera tried to
> account for this by brightening the image. So things are all tweaked. This
> sorta problem to me means the shot is pretty Fd honestly... but you can at
> least correct one of the things... for example I'd focus on correcting the
> contrast.
>
> With the contrast messed up by the lens flare, compounded with an improper
> development algo from the camera, the entire scene is contained in the top
> two thirds of the dynamic range of the scene. To correct this I'd drop the
> image a third of the dynamic range, which is about 1.3 stops of light. I'd
> then try to apply some contrast to the lower part of the range to try to eek
> out some detail of Aaron who's been mostly blacked out.
>
> All of this is easier in RAW than in JPEG... but w/e... here's the result I
> got:
>
>
> http://www.famousinternetskiers.com/wp-content/uploads/2011/06/aaron_ski21.jpg
>
> Compare to the original:
>
>
> http://www.famousinternetskiers.com/wp-content/uploads/2011/06/aaron_ski2.jpg
>
> It's not great, but at least it's passable in this set of shots intended to
> convey the experience.
>
> G
>
> On Thu, Jun 2, 2011 at 10:30 PM, Joshua Auerbach <
> [log in to unmask]> wrote:
>
>> Well at home/on my lapotp I run all Ubuntu Linux these days and do my
>> photo editing with the GIMP
>>
>> However, I do have access to windows machines with Photoshop.
>> Really though, I'm looking for a general strategy to fixing something like
>> this in any software.  I should be able to figure out the specifics from
>> there.
>>
>>
>> Dylan Gamache wrote:
>>
>>> What software are you using? What OS?
>>>
>>> Dylan
>>>
>>> -----Original Message-----
>>> From: Vermont Skiing Discussion and Snow Reports
>>> [mailto:[log in to unmask]] On Behalf Of Joshua Auerbach
>>> Sent: Thursday, June 02, 2011 10:14 PM
>>> To: [log in to unmask]
>>> Subject: Re: [SKIVT-L] TR: Otto Rhode 5/30
>>>
>>> PS  If anyone's got some tips for improving (in software) those photos of
>>> Aaron skiing with the sun behind him I'm all ears.
>>>
>>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>>> SkiVt-L is brought to you by the University of Vermont.
>>>
>>> To unsubscribe, visit http://list.uvm.edu/archives/skivt-l.html
>>>
>>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>>> SkiVt-L is brought to you by the University of Vermont.
>>>
>>> To unsubscribe, visit http://list.uvm.edu/archives/skivt-l.html
>>>
>>>
>>>
>>
>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>> SkiVt-L is brought to you by the University of Vermont.
>>
>> To unsubscribe, visit http://list.uvm.edu/archives/skivt-l.html
>>
>
>
>
> --
> "I'm a simple man, Hobbes."
> "You?? Yesterday you wanted a nuclear powered car that could turn into a
> jet with laser-guided heat-seeking missiles!"
> "I'm a simple man with complex tastes."
>  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SkiVt-L is
> brought to you by the University of Vermont.
>
> To unsubscribe, visit http://list.uvm.edu/archives/skivt-l.html
>
>
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SkiVt-L is
> brought to you by the University of Vermont.
>
> To unsubscribe, visit http://list.uvm.edu/archives/skivt-l.html
>



-- 
"I'm a simple man, Hobbes."
"You?? Yesterday you wanted a nuclear powered car that could turn into a jet
with laser-guided heat-seeking missiles!"
"I'm a simple man with complex tastes."

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
SkiVt-L is brought to you by the University of Vermont.

To unsubscribe, visit http://list.uvm.edu/archives/skivt-l.html