Bug in DNG Profile Editor

I have been trying to use the DNG Profile Editor to create an inverted tone curve to import a color negative. I want to create an inverted linear tone curve when I convert the negative and use the downstream software to apply the appropriate camera curve. The issue I face can be replicated by doing these steps:
Go in to DNG Profile Editor. Tone curve tab, select "linear" for the base curve. If you create your own custom curve and export the .dcp file and read it in with the color tables external profile, you can see the curve you expected. It works as you expect for any curve even negative curves unless you select 'linear'. Then, if you repeat the same process except this time you draw an inverted custom tone curve (so the image goes to/from negative to positive) and export the .dcp curve and view it, the curve includes your inverted curve, but also includes the base curve (as though the 'base curve' menu had been selected)...which it should not include. It seems to be a very difficult if not impossible task to get an inverted linear line for the tone curve which makes it impossible to do any scientific measurements with a negative image.
I want to report this as a bug and request a fix.
Thanks.

Rob, I looked at the both a curve xmp file and a profile recipe that contained a custom tone curve with a text editor. The profile recipe has a lot of information and it's not easy to locate the tone curve data. I think it's easier at the present time to input the individual points in the tone curve tab of the DNG Profile Editor. Maybe Adobe will add this capability at some point.

Similar Messages

Adobe DNG profile editor bug w/ GH2 files where aspect ratio is not 4:3

Hi,
posting here as Adobe DNG subforum is essentially dead
Panasonic GH2, select aspect ratio 3:2, get .RW2 raw file, convert it to .DNG using Adobe DNG converter (6.4.0.121 beta), try to open w/ Adobe DNG profile editor (1.0.0.39 beta 2) -> error message "DNG Profile Editor could not open the selected image. Note that the selected image must be a valid DNG color image".
XRite software has no issues to process the same .DNG file (converted from the original .RW2 w/ 3:2 aspect ratio).

Eric - just make it easier for you to reproduce the bug - here is the original .RW2 file (certainly ignore the quality of colorchecker shot in terms of how the target is lit, etc - it was not to make a profile actually - it was to illustrate the bug in question) = http://www.box.net/shared/f419prmuo2 ... and I am uploading the converted .DNG file too just in case = http://www.box.net/shared/gy5o9zzi57

What kind of DNG file for DNG profile editor ?

Can somebody help me??? I have a problem to use DNG profile:
I am user of Fujifilm S5Pro, which has RAF file (=raw). The ACR (start from version 3...) and DNG understand my RAF files very well. But DNG profile editor dose not want to open it, even if Adobe DNG Converter 4.5 converts it to DNG file. My workflow is:
Launch Adobe DNG Converter.exe, => convert RAF to DNG (tryed different settings);
Launch DNG profile editor, => trying to open DNG file => have error???
May be I'm doing in a wrong way? Please advise me.

I tried to do the same on other PC with Vista (fully English). Also update DNG converter up to 4.6. And no success... :-(.
Every time I have the same error: "DNG Profile Editor could not open the selected image. Note that the selected image must be a valid DNG color image."
I could not understand... where is a bug.
Moreover, I took NEF from Nikon D80 and CR2 from Canon 20D and converted them to DNGs by converter 4.6. DNG Profile Editor did not want to open them on both Windows Vista and XP, and made the same error.
Do I really do wrong things? I'm completely lost
Thanks in advance,
Slava

DNG Profile Editor can't read ColorChecker shot on slide film

I use my DSLR (Olympus E-5, 50mm macro) to digitize old Kodachrome and Ektachrome slides. As it happens, I have reference shots of a Macbeth Color Checker I shot back then. I thought I would be able to create custom DNG profiles to get accurate digital conversions of the slides. But when I shoot the slide of the color checker, convert to DNG and try to build a profile in the DNG Profile Editor, I get an error when I hit the Create Color Table button, specifically, "Non-neutral grey patches. The gray patch in row 4, column3, has a significant color cast. Please reshoot the chart carefully to avoid color casts and try again." I've had the same problem with Kodachrome 64, and Ektachrome 200.
If I shoot a ColorChecker directly using the same illumination (I've tried both strobe and incandescent for the slides, neither works) the profile is generated OK.
BTW, the RGB values for neutral color checker patches on the short of the slide (strobe illumination) when I open it in the profile editor are
White 123, 127, 92
LLG 91, 94, 78
LG 61,60,60
DG 27,26,31
DDG 7, 6, 9
Black 0, 0 ,0
I tried reshooting the slide gelling the strobe with 30Y, so I got 89,89,88 for what I think is row 4 column 3, but I got the same error message.
So you can see that there is not a consistent color shift across the brightness range (skews from -B at the light end to +B at the dark end, while R and B are relatively constant)
OTOH, the values for the Color Checker shot straight with the camera are consistent in the color shift across the brightness range:
White 104, 104, 107
LLG 71, 70, 75
LG 46, 45, 48
DG 24, 23, 26
DDG 10, 10, 11
Black 2, 2, 2
Any way to get around this or am I just screwed.
Thanks

Hi!
I tried YouSendIt. The Express app did not install, and Safari reported an error, bad server response or something. I have earlier uploaded files using SendThisFile, but that required a URL, not an e-mail address. so if you are still interested in the files, you might mail me an upload URL. - Fine anyway that you already fixed the bug.
-BTW, the "Subscribe to this discussion by email"-button does not work for me, it keeps deselecting itself.
Kind regards - Hening.

I have downloaded DNG Profile Editor 1_0_4 and prepared a profile which I can not see in my Camera Raw 6.0 (I have photoshop CS5). Could you please give me an advice?

I have downloaded DNG Profile Editor 1_0_4 and prepared a profile which I can not see in my Camera Raw 6.0 (I have photoshop CS5). Could you please give me an advice?

Uninstall Trusteer software
http://www.trusteer.com/support/uninstalling-rapport-mac-os-x
Remove Sophos
https://discussions.apple.com/message/21069437#21069437

DNG Profile Editor: Can't create profile from JPG file

Guys, could you tell me why DNG Profile Editor fails to create color table using 4 colored circles ? It says "Unable to check white balance using gray patches. Please use the four color circles to identify the four corner patches of the chart and try again" even though I places four circles properly (it works with DNG files shot with my Nikon D700).
I created this DNG file from JPG file by opening it in Camera Raw plugin and saving as DNG file. Original JPG was shot on camera of Samsun Galaxy S phone. I know I'm crazy but I want to have color profile for it All patches are properly exposed after slight correction of Exposure slider in Camera Raw.
I'm using latest beta3 build
Here is link to DNG and JPG file I'm trying to use
http://www.box.net/shared/4v2rzlzjfp
Thanks!

If you convert your JPG to a DNG can you change the profile to the one you computed from the other JPG you converted to a DNG?
Profiles are not for JPGs. Profiles are for RAW files that ACR supports. You can't (easily/ever) get a RAW file from your Galaxy S and Adobe doesn’t' support that RAW format even if you could.
To see if your profiling is working, you can used the ColorCheck module from a trial version of Imatest that you download from www.imatest.com and look at the color-error.
You can also try the Read_Color_CC24.jsx script from Rags-Gardner:
http://www.rags-int-inc.com/PhotoTechStuff/ColorCalibration/

Questions about DNG Profile Editor recipe code

I have been playing around with DNG Profile Editor. With a text editor I made the following recipe:
I have some questions:
1. Right now I have my control points at 60 saturation. Will using two points for each color (say 70 and 40) make my changes more consistent across darker and lighter shades of the specific color?
2. Does DNG Profile editor respect HueLow and HueHigh, are they just placeholder numbers, or are they ignored if two points are close to each other?
3. What does FeatherAdjust do? I'm guessing it controls the rate of drop off of the corrections. Is the value respected by DNG Profile editor when it creates a profile?
Thanks for your time and attention, -Bruce.

1. For now DNG-only. Here's why:
http://labs.adobe.com/wiki/index.php/DNG_Profiles_FAQ#PEOnlyDNG
http://labs.adobe.com/wiki/index.php/DNG_Profiles_FAQ#WhyNameDNGPE
http://labs.adobe.com/wiki/index.php/DNG_Profiles_FAQ#WhyPESeparate
2. Standalone for now. See above links for why.
3. Use the 'Preview Color Changes' option in the Options menu.
4. You can use 'Apply Raw Adjustments' in the Options menu to see your raw adjustments. This is __not__ recommended for building a general-purpose profile because you are then optimizing a profile with specific image adjustments in mind, rather than building a profile based more on the inherent camera characteristics.
5. True, that is a limitation of this implementation.
6. I am not sure what you mean. The Chart Wizard automatically optimizes the color patches in a test shot based on reference values for many physical charts, which is more practically useful than the numbers printed on the reference card that comes with the chart.
7. Make sure you avoid color casts in the bottom row. The PE is picky about making sure your gray patches are relatively neutral. It is an attempt to help you get a better profile.
8. Use 'Show Affected Colors' from the Options menu.
You may wish to read this page carefully and thoroughly:
documentation
It is the reference online documentation for the DNG Profile Editor and a few of the things you wish to do, such as preview all color changes, apply raw adjustments, and visualize the extent of each color adjustment, are all documented there.

About to use DNG Profile editor

I've had my Colorchecker for a few weeks, and I finally have time to set up my profiles for LR 3.4. In reading the DNG Profile editor tutorial page (http://labs.adobe.com/wiki/index.php/DNG_Profiles:Editor), I have a few questions:
1) If I use Tutorial 5, I am guessing I will have to create a profile for each lighting/WB condition, i.e., one for Tungsten, one for Fluorescent, one for sunny, one for overcast, one for flash, etc... Is that correct? Is there an advantage to doing this vs. going for the dual-illuminant approach explained in Tutorial 6?
2) In Tutorial 6, for the dual illuminant profiles, it states that one of the reference shots should be taken at 6500K. I'm not quite sure how to achieve this, since daylight and flash, to semi-constant WB sources I can easily achieve, are around 5000-5600K.
3) Should I (in LR) White-balance the Colorchecker reference shots, then convert to DNG, prior to bringing the DNG file into DNG Profile editor? Or is it preferable to WB as explained in Tutorial 1, step 3?
4) Finally, it's somewhat unclear how I bring the profiles into LR for use during the Import or Develop phases. Tutorial 1, step 9 mentions a "CameraProfiles directory" for ACR and LR, so I'm guessing I need to go digging through the Adobe folders to locate this directory and place/save my profiles there?

eswrite wrote:
1) If I use Tutorial 5, I am guessing I will have to create a profile for each lighting/WB condition, i.e., one for Tungsten, one for Fluorescent, one for sunny, one for overcast, one for flash, etc... Is that correct?
If you want a broad purpose DNG profile then yes, doing a dual illuminate profile is useful. Shoot a target under tungsten and under daylight and make the dual illuminate profile. There's no real reason you need to spawn off a bunch of other profiles for only slightly different light. The dual illuminate will handle cloudy or overcast just fine. If you also shoot with special lighting sources like fluorescent (which doesn't have a complete spectrum) or other non-standard lighting sources then do a profile for those special conditions. If you are creating a profile specifically for studio flash, you can get by doing only a single illuminate profile for the strobes...but in that case, the profile won't be as accurate if you also try to use it under tungsten–which would be the reason to do a dual illuminate profile.
As far as the D65 color temp, the closer you can get to it the better, but D55 should work fine. The key is to make sure it's evenly lit. The big difference between D65/D50/D55 is the relative amount of the blue light components-all three will be fairly close. Tungsten however has vastly less blue which can impact the sensor's spectral response–which is why the dual illuminate is suggested.
Once you do the CC shot, don't bother with tone/color corrections in ACR before converting to DNG. They won't have a material impact on the profile creation. The CC shot MUST be evenly lit and of an optimal exposure...
As far as where the profile goes, it depends on the system. Once you've created the profile, PE should default to the correct location, otherwise state your system and we can tell you where to put them.

Creative use of CC calibraton in the DNG Profile Editor

The DNG Profile Editor can be used to create profiles that mimic film looks.
I think right now it is manual trial & error process involving changes in hue, saturation and lightness, but it could be theoretically achieved with Color Checker calibration working in reversed order.
- Photograph the CC using your favorite film
- If B&W, develop in your favorite developer
- Scan the film
- Use the scan in the DNG Profile Editor as target values
The current DNG Profile Editor obviously does not allow that, it would require adding a new tab and clone the CC calibration feature and alter it to use the photographed values as target values as opposed to internal values.
I don't know if it would be worth the effort, but I thing the idea is worth of sharing.
By the way, unless I'm doing something wrong, the saturation slides don't seem to go 0%, so creation of B&W profiles is not possible.

Good idea. Yes, I've posted an example on my Flickr.
I chose a picture with good reds and yellows. There are four images in the set:
1. The original, untouched image. This is using the new Adobe Standard beta profile, brought into Lightroom with all default settings, including linear tone curve, no exposure or color adjustments, white balance "as shot", etc. For reference.
2. The image with my test profile applied, but no further adjustment.
3. My original attempt at the image, using the "old fashioned" pre-DNG-profiles raw processing method, for reference. The yellows are orangeish, which isn't that objectionable but also isn't accurate. The reds are weaker than I would like.
4. The "final" image, with my test profile plus additional tweaks -- white balance, tone curve for contrast, crushing out the blacks a bit more, etc. Two or three minutes of total processing, versus quite a bit more for the previous attempt with no "special" profile. The reds and yellows are perfect.
The Flickr set:
http://flickr.com/photos/100mph/sets/72157606547890574/
This was just a first, pretty quick attempt at playing with the DNG Profile Editor. I'm sure it can be tweaked more and even more can be accomplished.
[Edit: note: I changed the "upload date" on the test images so they wouldn't stay at the top of my Flickr page. Ignore the 2007 date, it doesn't mean anything.]

Camera Calibration in ACR & DNG Profile Editor

I am having the hardest time figuring out how to use the camera profiles generated with DNG Profile Editor in Camera Raw.
I am using Photoshop CS4 in Windows 7. I have generated the .dcp file with DNG Profile Editor and saved it in the folder: Program Files/Adobe/Photoshop CS4/Presets/Camera Profiles.
This is about as far as I've gotten. I have not been able use this profile in ACR under the Camera Calibration Tab. I have been lead to believe that is would show up automatically. I have not found any video tutorials related to ACR and installing Camera Profiles. They all seem to relate to Lightroom.
Any help would be greatly appreciated.

If you would like to look or copy profiles manually (for example you have received a profile made by someone else; for Windows7 you should be able to see where the Profiles are stored by searching for *.dcp (meaning any file with the extension .dcp)
That will show you where the Adobe supplied profiles are located. You can copy your custom profiles to the sub-folder of your camera type in the Camera folder.The other folder you see is where the Adobe Standard profiles live.
If you cannot see the programdata folder (and that is the case by default) you can make all hidden files visible:
(this from Windows Help, just search for show hidden files)
Computer>Organize>Folder and search options>View. In Advanced settings check the radio button Show hidden files, folders, and drives and then OK
Now you should see the programdata folder visible under your system (C:) folder
I hope that helps.

**-Camera Profiles and DNG Profile Editor FAQ-**

A page containing answers to Frequently Asked Questions about Camera Profiles and the DNG Profile Editor can be found
here

New FAQ entries:
What changed between beta 1 and beta 2?
Is it safe to delete beta 1 profiles? What will happen if I do?
I now have the beta 2 profiles and want to delete the older beta 1 profiles. How do I do this?
Please read carefully.

DNG Profile Editor not working with new Profiles from LR 3.6?

I'm noticing that DNG Profile Editor is not really able to work with profiles from newly supported cameras, like the X10. Apparently the profile spec has been updated. Has DNG Profile Editor been abandoned or will it be updated to work with the new spec? I really hope it is!

Thanks. I am looking forward to editing the v4 profiles for the D700 - I just want to change a few colors in the existing profiles. I think the existing v4 profiles do an excellent job of matching the Nikon colors, but I don't like a few of the Nikon colors. Some colors have too much Red, but Red is too Orange.
I have selected a number of images that have colors I want to change. I selected the Camera Neutral (v0) and Camera Portrait (v0) and using the latest DNG Profile Editor I select the 18 colors from the Color Checker Chart. I then use the images that have the colors I want to change and determine which of the 18 points I selected from the Color Checker are close. I then edit those points - only 6 points. I only need to change the Hue by 5 units or less. I don't change any of the other selected points of the Color Checker, but feel that by selecting them I locked in the exisiting colors. Hope this is a good aproach.
I wish Nikon would do something equivalent to the DNG Profile Editor for their Picture Control profiles so they could be edited and loaded into the camera.

Camera Profiles and DNG Profile Editor

I saw the lightroom 2.0 eseminar and the presenter mentioned Camera Profiles and the DNG Profile Editor. All I see is ACR4.4 and 4.3. The the FAQ page says I need ACR4.5 and I can't find it and haven't gotten any update notice. Should I just wait for an update or forget it?
Don

>I have CS4. Will this overwrite ACR 5.1 in CS4?
If you have CS4, you should update to ACR 5.2. If you install 4.6, you will break your CS4 install. Either just run the Adobe updater app, or go to http://www.adobe.com/support/downloads/new.jsp to download it. DNG converter is a separate download. Both camera RAW and NDG converter contain the final release version of the new profiles. DNG profile editor can still be downloaded from Adobe Labs: http://labs.adobe.com/wiki/index.php/DNG_Profiles. There is also a profiles download there that you don't need if you install DNG converter 5.2.

Camera Profiles and DNG Profile Editor beta 2 now available

Hi everyone,
Beta 2 of the camera profiles and DNG Profile Editor are now available. Please visit here and enjoy:
http://labs.adobe.com/wiki/index.php/DNG_Profiles
I hope to have more detailed release notes/changes for you soon. You are welcome to ask questions, but please note that it may take a while for me to respond.
Eric

Eric,
I followed very carefully your instructions for installing the new beta2 profiles and deleting the beta1 profiles, but have the same problems as many others. I'd like to provide a bit more information. I'm running Windows Vista Home Premium and have installed Photoshop CS4, updated with ACR5.1 and Lightroom 2.1 final release. As others have described, the default for all of my images was set to one of the Camera profiles (Canon faithful beta1), but now the profile name in Lightroom is blank. I tried looking at the other profiles and it does indeed appear that the beta2 profile is being used, but if I then reset the image it now shows ACR4.4, whereas the image had been imported with the camera profile as default. Also, if I open an image in ACR5.1 that was specified to use the same camera profile, it now shows ACR4.4 and it is not using the beta2 profile of what I had been using, I can see this by selecting the other profiles. Going back to Lightoom, I guess I could select all my images and select the Canon faithful beta2 profile, but then the mark shows up bottom right of the image showing that they have all been edited/modified, is there anyway to get all my images using the profile I was using but the beta2 version, without this happening and how about new imports?
Thanks, David.

How to make dual illuminant profile in DNG profile editor?

I have just started working with the DNG Profile Editor. In another discussion I commented on the clarity of the instructions provided by the tutorial. I had no difficulty creating a single illuminant profile using the X-Rite color checker passport. But when it came to producing a dual illuminant profile, following the instructions exactly, I was stymied.
1. Open dng image of Color Checker photographed in 6500K illumination.
2. Open dng image of Color Checker photographed in 2850K illumination.
3. Select Chart tab in editor.
At this point one is instructed to "Click the 6500 K-lit ColorChecker image window to select it."
But the 2850K lit image (last loaded) has replaced the 6500K image window (at step 2) and I can find no way to reopen the 6500 K lit image window in order to proceed to the next step.
As a matter of interest, why do these instructions suggest setting the pop-up window in the Chart Pane to "6500K only" and then create color table with first image. Thereafter select second image, set pop-up window to "2850K only" and create color table. I seems to me that, having loaded two images (even if I can only see the second image loaded) one should choose "both color tables" and then create color table. In fact I have tried this and it does produce a profile, but I have no way of determining if it is a correct dual illuminant profile.
Please help.

2. HYPERLINK "/people/MadManChan2000"MadManChan2000,
Oct 21, 2013 9:09 AM in reply to blumesan
Note that the "Both color tables" option always creates a single-illuminant profile. The "Both color tables" option means that the computed color corrections will be applied to both color tables (i.e., the color table for the first calibration illuminant, which is usually Standard Light A, and also the color table for the second calibration illuminant, which is usually D65).
After playing around with the Profile Editor for a while, and examining the results with dcpTool, I now understand (I hope) what Eric is saying. In his language a single-illuminant profile is one created from a single dng image using the "both color tables" option (without regard to the illuminant used to capture that image.) When one does this (using Adobe Standard as the base profile) an examination of the resulting profile with dcpTool shows the following:
Two illluminants are identified: 17 (Std A) and 21 (D65).
Color Matrix 1 & 2; Forward Matrix 1 & 2; Hue Sat Delta Tables 1 & 2.
Which certainly gives the impression of a dual illuminant profile to novices like myself. My guess is that the PE software itself applies a default assumption of these two illuminants, corrects the image for each illuminant and constructs two color tables, one for each illluminant. When used, the profile will interpolate between the two tables based on the white balance of the image being edited.
If this is indeed correct it makes me wonder in what way does such a profile differ from a dual illuminant profile created from two dng images, each captured under a different illuminant (2800K & 6500K) as described in Tutorial #6 of the PE instructions. These instructions contain the following description of such a dual illuminant profile: "The result is a single profile that performs well under a wide range of illuminants instead of a single fixed illuminant." Which really make me scratch my head. Should one conclude from this that a single illuminant profile (created using the "both color tables" option) will perform less well under a range of illuminants? Will it perform well only under a narrow range of illuminants centered around the illuminant used to capture the single image?
As a footnote, it is worth remarking that I (and perhaps others) have been confused by examining profiles created by the XRite software when using only a single dng image. Examining such a profile with dcpTool one sees the following structure:
One illuminant only #23 (D50)
A single Color Matrix table.
A single Hue Sat Delta Table.
Thus one comes to expect this structure in a single illuminant profile.
I would be very happy to see Eric's comments..

Bug in DNG Profile Editor

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