Local corrections

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Sverre

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I love the possibility in Local corrections but find it hard to understand or use. In many high contrast situations the sky is to bright and I hope LR2 will make it just as easy to correct this as Capture NX with the Control point technology.

Auto mask seems like Adobes answere for very quick selection of a uniform region (like a bright sky). Unfortunately I can't make it select this sky without a lot of painting after using the automatically options...

In my examples below I have painted most of the sky with a big brush size, zero feather and Auto mask selected. If I keep the center of my brush in the sky it seems LR2 brush only the sky and it's a very quick way to select this area. However I get a few pixel of the sky that is not selected and much brighter then the rest. Do I use the tool wrong or do I have to paint manually in this area???

http://edin.pointclark.net/forum/2''7'5_'531-1.jpg

And what is Flow?
 
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I've read that article and found a lot of usefull information. Still I can't get good result with little effort.

Anyone without Photoshop experience tried this and found it ease to achive a good result?
 
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Yes, I've found the same thing, but then you also get the same using automatic selection tools in PS too.

I'm no expert on the new local corrections, as I don't need to use them often, but in the quick tests I ran, I found it worked nicely to use AutoMask to get most of it, and then go back with the smaller very soft brush and AutoMask turned off to float roughly over those edges, not bothering to be too exact.

Flow affects the build up. As 1'' it behaves like a paintbrush applying full, lower settings work like an airbrush. 1'' is best for doing large flat areas like sky. Try the different brushes on a plain grey file and you'll see it easily. I've attached one for you!
 
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Thank you Victoria!

I'v tried the different setting with your grey file and hope I understand the different settings.

I hope Adobe going to improve the auto mask functionallity so we don't have to paint with small brush over the edge. That is a lot of work compared to other tools that give you better results with a few click.

Do Adobe read threads in this forum or are any on this site working for Adobe?
 
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Melissa & AnitaD are both Adobe reps and drop by. Don't worry, the reports do get back to the team.
 
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Sverre, the only Adobe employees I'm aware of here are Melissa G and Anita D, who drop in from time to time.

I don't think that Adobe is aware of the post by post content here, but I think it's safe to say that the broad themes and widely/strongly held opinions expressed here are made available to the development team, along with unique previously unreported bugs.


LOL - simul-posting to the minute!
 
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Excellent!

If Adobe can fix this so you don't have to paint the edges I think this concept is more powerfull and flexible then Capture NX controll point. Then I can paint a bright sky with a few brush stroke with a big brush and if I wan't to change flow etc. on part of the selection I can do that. We want this to be just as easy as NX and more flexible - right?

Then Adobe only have to offer all raw adjustments (sharpening, noise filter, WB,...) also in local corrections and not only a subset ;-)

I don't understand how feather work with auto mask. It seem like the "automatically edge" have no feather and give a sharp edge regardless of feather setting.

The grey mask you see also show the area you paint regardless of what auto mask decide to neglect...
 
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Hi

Having never used these in PS, this is all new to me.

What i find strange in functionality is that i can't apply the mask first and then decide which of exp, bright, clar, sat or tint i want - or the strength of the feather/flow.

As a beginner, i will take all tutorials and education on this great new feature.

Cheers
Brad
 
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Braders said:
Hi

Having never used these in PS, this is all new to me.

What i find strange in functionality is that i can't apply the mask first and then decide which of exp, bright, clar, sat or tint i want - or the strength of the feather/flow.

As a beginner, i will take all tutorials and education on this great new feature.

Cheers
Brad
Click to expand...

Ah ha! I didn't think these would be up yet, but check Lynda Training:

http://movielibrary.lynda.com/html/modPage.asp?ID=581
 
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Braders said:
What i find strange in functionality is that i can't apply the mask first and then decide which of exp, bright, clar, sat or tint i want - or the strength of the feather/flow.
Click to expand...

You can't change the feather after the fact, but the other things you can change. I often tend to set it on a heavy tint so I can see where I'm painting, go ahead and paint, and then switch to Edit and change the settings and opacity I want applied.
 
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Svere,

What effect do you get if you expose for the sky and use the fill slider rather than using the local correction on the sky?
 
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Andrew,

That's what I have done in 1.31. Used fill light and sometimes also recover and brightness/tone curve. I get OK results but not as good as local corrections. Your global correction also change other part of the picture and it seems I get better result with increasing exposure in the shadow then fill light. (Or decreasing exposure in the hightlight then recover.) A little adjustment with fill light is OK but higher values give a very unnatural result.

If auto mask works better I think LR v2 have an ideal solution both regarding workflow speed and result.
 
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Epix;1254' said:
Can someone explain the "Feather" and "Flow" sliders?
Click to expand...

Epix, in simple terms

Feather is the hardness of the brush edge. That is, how much does the effect taper off from the center?

Flow is a little more complicated. At 1''%, the brush behaves like a paint brush and the effect is applied according to the 'amount' slider. At flows less than 1''%, particulary down below 25%, the effect is applied sort of like (amount x flow). But, subsequent strokes are additive. So the effect can build up gradually, but it will never exceed the amount slider. This is kind of like an airbrush in effect.

Note that subsequent strokes can be:
a) click, hold, drag back and forth
b) click, drag, release, repeat
c) commit the current correction, by hitting enter, and start a new correction, with a new location 'pin', and either a) or b) again.

You can adjust brush size with the mouse scroll wheel, the size slider, or the ], [ keys. Adjust feather with the slider or shift-],[.

The best way to get a feel, is to create a single color substrate in another application, import it, and just twiddle the sliders and buttons, and paint on the LCs. Delete the LCs, (select the pin, and hit the delete key). And start over. Victoria posted a neutral grey earlier in this thread, if you'd like to download it.

From stories I've heard, I believe that establishing the flow/feather/amount Local Correction paradigm, and tuning the effects to a natural feel, was one of the more difficult tasks the development team had in creating LR2. You can rest assured that every photographer on the planet has her/his own individual preference on how this should be implemented and most of them were happy to make conflicting suggestions (demands?) to the team through various forums.

In the end, I think they've implemented a very workable and understandable solution, and laid the groundwork for additonal LC based tools in later versions.
 
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I am definitely looking forward to a (hopefully free) video tutorial specific to local corrections because I find this very difficult to understand. Granted, it's probably easy once you learn it, but I too am having a hard time understanding it. I have, in a way, got it working by brute force, mostly for exposure corrections. I simply set exposure to -1 and seem to scrub areas that need corrections and I keep scrubbing until I see a difference. But in truth I don't know what I am doing. :?
 
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I have not downloaded the beta because I'm not computer savvy enough to deal with conflicts that might possibly happen. But I was wondering if the local corrections will work with the HSL section. I've been watching threads about local corrections and have not seen it mentioned in conjuction with HSL. Sorry for asking if I just missed it.It sure would be great if we can adjust a color in just one part of a picture. Thanks
 
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I thought people would like to see these comments i found from Jeff Schewe and others on the LL forum. Interesting discussion regarding tethered and sharpening.

Quote
"Wrong...while PhotoKit Sharpener's Output Sharpening was layer based and thus allowed on to vary the opacity, I've never run across anybody who made a practice of allying layer masks to paint output sharpening in. The simply fact is that sharpening for output can not be done using a display feedback. A display is simply too low resolution to give you any meaningful feedback. You may be confusing output sharpening with "creative sharpening" which was designed to be applied locally. And since LR 2 is still beta, don't be surprised to see additional things added to the local corrections adjustments (things like sharpening and smoothing would not surprise me at all).

Combined with the capture sharpening in Develop and output sharpening in Print, 2/3's of the Sharpening Workflow designed by Bruce Fraser are now in Lightroom. All that's left is local creative sharpening...and that may still come. "

Here's the full link

http://luminous-landscape.com/forum/index.php?showtopic=244'9&st=4'
 
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