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#1 2006-03-05 08:23:23

ckiely
Member
From: Southern California, USA
Registered: 2005-12-17
Posts: 218
Website

HDR issue, perhaps...

I am going to have difficulty explaining this one. Assume that I have a top/bottom image set w/ 25% overlap. But, the exposure differences in the images is quite dramatic. Now assume that there is a rigid line across the overlap area, e.g. horizon. I have an image set where I don't want the an HDR blend across 25% of the overlap area, I actually want a fairly rigid transition, but I can't do that.

What I would like to do is output with layers and then put back in the area that I want from the original file, but in Levels output the final image is processed, but the original is not, which makes it difficult to add this section back in.

So... maybe what I would like is a "group" anchor. Meaning, group the top row together and process, then group the bottom row together and process. Then let me blend them manually.

So, in a 2x6, I want the top 1x6 as one group, and the bottom 2x6 as another group. Output only as 2 layers, not 12.

Does that make sense?

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#2 2006-03-05 19:48:40

GURL
Member
From: Grenoble
Registered: 2005-12-06
Posts: 3501

Re: HDR issue, perhaps...

I would try to produce 2 stitched results of the whole panorama and to combine them manually using PS (or any other editor where layers and masks are available.)
- stitch the first version in such a way that you like the ground part color and lighting in it.
- stitch the second version in such a way that you like the sky part color and lighting in it.
- because the size and geometry is identical in both versions (identical cropping or no cropping at all) the two layers correspondence should be perfect.
- finally you decide of the blend using a mask (or the rubber tool if you prefer.)

By the way, I was never able to do that using APP because I encountered a strange problem  (if this problem persists in the new version I will explain it...)

Last edited by GURL (2006-03-05 19:49:59)


Georges

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#3 2006-03-05 19:54:14

ckiely
Member
From: Southern California, USA
Registered: 2005-12-17
Posts: 218
Website

Re: HDR issue, perhaps...

Hmmm... that would be quite a bit of time and work, but it is an obvious answer.

I think that AlexandreJ answered real question at hand in a previous thread when he noticed that tone mapping was not carrying across the layers. So, I could just output w/ layers and then merge them on my own. That's the part that was tripping me up.

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