Tone Curve Region Sliders ?

Please explain how you can identify an area of an image that could benefit from adjustments using the Tone Curve Region Sliders, and explain how to set the sliders to get the effect you want.
Thank you.

I think that the NAPP Lightroom page has a freely available video that shows how and why to use this part of the tone panel.

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LR5 not showing Tone Curve "region" panel and associated sliders.

Hi,
The Tone Curve panel in LR5 as currently set up isn't showing the "Region" sub-panel and associated sliders. It also isn't showing the slider immediately under the tone curve itself. Any ideas on how to get these features to show?
Thanks

Hi Jao,
Bingo! That did the trick. Many thanks.
Ian

Where are my tone curve regions

Lightroom 3 - I seem to have lost my 'regions' in the tone curve module - How do I get them back?

Oh thanks. I was going crazy looking for it

Tone curve "region" disappeared

hello,
i am running lightroom 3 on mac os 10.6.8. i use lightroom constantly and have never had any problems. i started lightroom today and went to the develop module only to discover that under the "tone curve" panel, i no longer have any sliders for highlights, lights, darks, and shadows. the graph portion of of the panel is there, containing the actual tone-curve, but everything else is missing. anyone have any ideas on this? screen grab of the panel is below.
thanks!

Click on the small curve icon in the bottom right hand corner of the Curve panel (you can see it in your screenshot) and the curve will change back to sliders.
The curve that your screenshot shows has actually one big advantage over the other: You can drag the end points of the curve vertically up / down to set your black point or white point.
For instance you drag the bottom left point of the curve vertically up until it shows about 5%. And correspondingly you drag down on the right top end to about 95%. That ensures that you have detail in the highlights and in the shadows.
WW

Tiny little tone curve idea

In the tone curve one has the three sliders on the bottom splitting the curve into shadows, darks, lights and highlights. The initial settings for the "tone curve regions" are 0-25, 25-50, 50-75 and 75-100.
What I would like to see, is an option to change this initial setting to be relative to the image tonality, not absolute 25/50/75 slider positions, but relative to the amount of different tones in the image. For example in a dark low key image the shadow region could initially be set to something like 0-15 - whatever amounts to 25% of the pixels in the image, and if there were only very little highlights, the righthandmost slider would be probably close to the middle initially, covering the lightest 25% of the pixels in the image.
Sure, I can do this now manually, but an automated option would be nice as I often want to start tweaking the curve with the "splitters" dividing the curve into regions each with roughly the same amount of pixels.

Extremely extremely MONEY for the flat film scans I bring over from VueScan.
All the image data is bunched up on the left side, and Tone Curve is useless until I start varying the split point sliders.
An automated feature for this would be extremely useful.
-Rishi

Tone Curve sliders missing?

I have LR 3.2 and today I noticed that the region sliders in the tone curve panel are gone.
Has anyone else experienced this?
Wayne

Thanks Rich.,
That did it.
Wayne

Lost Sliders in Tone Curve Dialogue 3. & 3.2

Windows XP- I cannot retrieve region sliders in Tone Curve in Develop module. Point curve still visible & useable. Can't find any info under communities. Anyone any ideas please? No problen on laptop Win 7 64. What have I done?
Allan Devon

Allan,
You clicked on the little square with a line through it in the lower right corner of the Tone Curve control, putting yourself into Point Curve mode. Click it again to go back.
Hal

Missing Tone Curve Sliders

Hi all,
I'm not sure when this happened, but I just noticed that the Tone Curve no longer has sliders to adjust Darks, Lights, Shadows, etc. All I have is the curve itself and the dropdown to adjust the type of curve. Did I accidentally change a setting that hides the sliders? I'm running LR 3.3 on Mac. Thanks in advance!

Paul,
There's a non-obvious button in the lower right cornter of the tone curve panel. It looks like a diagonal line with a dot on it. Press it.
Hal

Individual tone curve sliders have disappeared.

I have the Tone Curve and I can make adjustments just fine. But the three individual sliders beneath it are gone. Tone Curve is checked in Window\Panels. I honestly have no idea what I did to toggle it off. Read a similar thread from 10/20, but the answer didn't solve my problem.

and you get this
Beat Gossweiler
Switzerland

Tone curve - please bring back sliders, Canon DPP software just as clumsy!

Please bring back sliders for the tone curve beta 4 in this respect is now just as awkward and clumsy to operate in this respect as Canon DPP!

You can change from parametric to point curve mode yourself with the lower-right icon in the tone curve.

Tone Curve Sliders Disappeared

My tone curve sliders disappeared in Lightroom 3 (exposure, recovery, fill light, blacks, brightness, saturation, vibrance). I have googled it and tried a few things with no luck. THanks in advance for your help! I am desperate to resolve this ASAP!

I just realized i was not missing my tone curve sliders. i was missing the basic panel. i restored it by going to Help--Search--Basic Panel and it popped up. RELIEF!

LR4.1 - Tone Curve - how to adjust individual RGB channels?

Hi,
I am having trouble figuring out how to adjust the curve of individual RGB channels. I am assuming the LR4 Tone Curve works like the PS Curves dialog with the channel dropdown.
The LR4.1 Help says:
To make adjustments to individual points on the tone curve, choose an option from the Point Curve menu, click the Edit Point Curve button , and do any of the following:
Choose an option from the Channel pop-up menu. You can edit all three channels at once, or choose to edit the Red, Green, or Blue channel individually.
When I click the little icon in the lower right corner of the Tone Curve panel, the panel shrinks so that I don't see the Regions sliders. If I click again, they are visible again. I can't find where to select one of the three indvidual channels.
The Help refers to "the Point Curve menu." Where is the Point Curve menu? Is the Point Curve different from the Tone Curve?
If I right-click (Windows) in the curve dialog, the context menu has a Show Info option. I click it on/off and don't see any change or any info. Where should I be looking for info?
Thanks for any help here.
John

Good morning John,
The point curve is the one without the sliders. The adjustments for the individual channels are only available with
PV2012. You must be editing a file with PV2010 or 2003. When in PV2012 you will see " Channels: RGB" below the curve window. Click on the doule triangles following the RGB
to pick the individual channel.
HTH
Rich

Abandon the Tone Curve?

I am finding that the new sliders in LR4 are extremely effective. I am wondering if routine Tone Curve adjustments are helpful any more. How do you feel about using the Basic Sliders for adjustments, and not using the Tone Curve? What would I be giving up by abandoning the Tone Curve?

EricBier wrote:
Jeff,
... I am at a loss to achieve precision using the Tone Curve in Lightroom since any move affects the entire image creating undesireable effects in areas I am not focused on. If I do not go to Photoshop, I tend to use the Adjustment Brush or the Graduated Filter in Lightroom to affect different areas differently, after setting the Basic Sliders.
In general, you are right--I find it best to go to PS for localized tone curve adjustments. But there are a surprising number of special cases where judicious maipulation of the LR curve can affect only the area you want affected.
For example, its an easy matter to bring out sky detail when photographing dark aircraft from below by increasing the curve slope in the bright region and restoring the curve shape at the mid and dark tones. This basically increases sky contrast (and detail) in a way that is not possible with other LR adjustments.
For the last few years I've been teaching a Photoshop class that emphasizes curves techniques like that in PS. I'm a new LR user and was surprised at how many images can be improved even without masks and with the relatively crude curve adjustments of LR.

Tone curve RGB

I am trying to alter individual RGB channels within the tone curve box, but I don't get a pop up dialoge box. I saw a mention of PV 2010 and PV 2003, but I don't know what these are, or if one can convert to them.

Look in the camera calibration panel and it will tell you. Alternatively, if you're seeing the current set of sliders in the basic panel (e.g. highlights, shadows, etc.) then that would confirm you're using PV2012.
Go to tone curve, click on the little curves button at the bottom, and you'll be in point curve mode. Click on the RGB button to choose a colour channel.
As you're on the web, I recommend searching for "process version Lightroom" to find out more about that side of things.
M

2012 Process Version Alters Exposure/Contrast/Tone Curve

In working with the LR4 beta, I've come across a couple odd results. I imported some image folders containing raw, tiff and jpeg. The images were updated to the 2012 Process Version on import. I noticed that I had not saved out the metadata on the raw files for earlier edits in LR3. I closed LR4, opened LR3, saved out the metadata, reopened LR4, read the metadata from the files and this, unsurprisingly, reverted them back to the 2010 Process Version. When I update the raw images to the 2012 Process Version, the Exposure is reduced by 1 stop and Contrast is set to -33. Additionally, a significant Tone Curve adjustment is made. No such alterations occur to tiff or jpeg files in toggling back and forth between 2010 and 2012.
Please advise.
Thanks.

Eric, I guess what I'm trying to figure out is if they aren't going to 'look' the same then why would that be. Further, if no changes to the file were made (i.e., exposure, recovery, curves, etc) then why would there be such a radical change to the image on updating to a new process version?
As I noted earlier, I don't recall that updating to the 2010PV from the prior made such a change to images. In fact I just tried it. I switched back to 2003, then to 2010 then to 2012. No change to the image going from 2003 to 2010. Big change going from either 2003 to 2012 or 2010 to 2012. To my way of thinking, if I take an image processed with the 2010PV and am happy with the way it looks (it's displayed on my website, I've printed and sold it, etc.) then I update to the 2012 PV I shouldn't have to re-edit the image to get the same 'look'. I understand that due to the different controls some of the positions of the sliders may be different. But the two images shouldn't 'look' different. Take another example. If I've got a set of images from a commercial shoot, have edited them in LR and provided to the client, then I update those images to the 2012PV in LR 4 and the resulting images aren't the same, I've got to spend time (and money) re-editing to get back to what I had before. Does that seem right? It sure doesn't to me. It seems, actually, the exact opposite of what should be.
In the screen grabs above, this is a marked change to the image. It's categorically not just a difference in slider/control positions to get the same 'look'. It's a completely different image with a completely different look. The file has been radically altered. To me, that shouldn't be the case.
EDIT: I guess we were posting at the same time, Eric. Sorry, I understand the explanation but it just doesn't make a lot of sense.

Tone Curve Region Sliders ?

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