ACR with 32-bit tiffs?

I ran a set of HDR images through Merge to HDR Pro. Saved the result as a 32-bit tiff. Back to Bridge 6.0.1.6 where I can see the tiff.
I now want to do the RAW processing on the HDR file in ACR. I have no "Open in camera RAW".
I can open .NEF, .jpg, and other tiffs. Does ACR not support 32-bit tif files? And if it is supported, what do I need to do so I CAN get into ACR with a 32-bit tif?

Check this thread:
http://forums.adobe.com/message/4514579

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10-Bit display test with 16-bit TIFF

Okay, I just got this new HP Dreamcolor Z27x and want to test it on 10-Bit with Windows 8.1 64bit and Photoshop CC 2014.
I followed that guide:
10 Bit Color Depth and Adobe Photoshop CS6 | ted lansing photography blog
to create the TIFF-File:
In Adobe Photoshop create new file
900 px wide and 300 px tall
RGB color and 16 bit
Use gradient tool to create gray scale gradient from RGB: 64/64/64 to RGB: 96/96/96
Safe file as 16 bit tif file
Wich behaves very strange!
When I create the gradiant in 16bit mode, it shows me zebra stripes, like it would be 8-bit.
I actually need to change the Color Mode from 16 to 8 bit, to see a smooth transition within the gradiant.
BUT, did I just kill the 16-Bit information with changing the mode or is it just a bug? I´m really distracted...
Please can somebody tell me, what to do?
Thanks in advance!
PS: In Premiere, the TIFF-File is shown naturally in 10-bit like it should be!

What video card are you using? Can you try using CS6? There are issues in Photoshop CC with 10-bit and AMD cards, with Adobe and AMD both blaming each other but neither seems in a hurry to resolve. See Re: PS cc and 30 bit

Migration with 16 bit tiff then

It is suggested that the migration from Aperture is by converting to 16 bit Tiff, no doubt to keep top quality images when exporting them to Lightroom.
Once in Lightroom, do I need to keep them as 16 bit, bearing in mind the size of them or should I be converting them to 8 bit Tiff`? What is the advantages of keeping them as 16 bit? What would be the disadvantages of keeping them as 8 bit tiff, especially is I have no intention of doing further editing/adjustments and just use for personal use?
thanks
john

Once in Lightroom, do I need to keep them as 16 bit, bearing in mind the size of them or should I be converting them to 8 bit Tiff`?
You are not given the choice ... if its 16 bits, then LR will keep it as 16 bits.
What is the advantages of keeping them as 16 bit? What would be the disadvantages of keeping them as 8 bit tiff, especially is I have no intention of doing further editing/adjustments and just use for personal use?
16 bits will provide you with opportunity to produce better edits than from an 8 bit image. If you are 100% sure you will not be editing these again, there is no harm in exporting the photos from Aperture as 8 bits, instead of exporting from Aperture as 16 bits. But also if these were JPG originals, I don't think there's any benefit to converting them to 16 bit TIF, as JPGs are 8 bits and the TIFs should probably be 8 bits.
I am skeptical that you will never edit these again ... please bear with me, I don't know you ... but in my case, a long time ago, before I had Lightroom I used Photoshop Elements to edit my photos; then I got Lightroom and as I learned how to use Lightroom effectively, I went back to my old images that I had edited in Photoshop Elements and was able to GREATLY IMPROVE the appearance in the photos, compared to my previous edits in Photoshop Elements. As you learn more about Lightroom, you may find you still want to edit old photos to improve them.

16-bit tiff with a blue hue

I have a canon 20D, which I use to take RAW images. I convert them to 16-bit tiff's using Photoshop CS. When I transfer the images to my ipod photo using itunes they appear on the ipod with a blue hue to them, all the 8-bit images transfer fine. Can anyone tell me if this is a know/widespread issue, and if there is a solution to this.

Did anyone find an answer to this problem?

Save as a 16 bit TIFF file for Enlarging?

Question, a local photo developer told me that if I wanted to develop my photos at something like 16 x 20 or larger I should save my photos as a 16 bit TIFF file. Elements 4.0 does not seem to allow me to set the bits at 16, just 8. Is there any truth to what they are saying?
Also isn't the file size going to be massive when doing this. Most likely prohibiting an upload to their site?
I am shooting with a Nikon D50 in RAW format. Obvioulsy I have to open it in Elements from Camera Raw as an 8 bit photo to save it in either TIFF or JPEG format.
Any comments are appreciated.

Thank you for your comment.
When I save the 16 bit file in ACR it saves it as a .dng file. When I open the .dng file in Elements again the raw editor opens it as a 8 bit file automatically. This may be all well and good if I can have enlargements made with this file type but not good if what the developer is telling me is true. ???????

Working with 32 bit color HDRs in Lightroom

The feature of being able to work with 32 bit color Tiff files in Lightroom is awesome and wonderful. However, I note that when I do not follow the recommended workflow of bringing the 32 bit file directly back into Lightroom to work on it - working on it with Adobe Camera Raw in Photoshop first - the results are somewhat confusing. I'm fine with following the recommended workflow except for the fact that I seem to be able to come up with even better results quite quickly using ACR. ACR appears to give me a greater tonal range to work with, but when I save the file as a Tiff and take it back to Lightroom the colors aren't displayed correctly by Lightroom. There is a huge difference between viewing the file in Photoshop and viewing it in LR. If I work on the file immediately in LR, avoiding doing anything in PS, the files look identical in both programs, but at the apparent cost of losing a lot of exposure range to play with. Am I correct in inferring that LR is working on the 32 bit colors using a 16 bit color depth conversion in the tools?

https://dl.dropboxusercontent.com/u/106834366/Redux%20Vidz.aep
This is kind of a project-ruining issue not being able to render it out in 32-bit -- I'm working with a lot of gradients and lens blurs.
Anyone have any hints of why this might be happening?

Problem with 16 Bit colour in Elements 10

I use Lightroom 4.4 to adjust/convert my camera images (Canon CR2) to TIFF 16 Bit colour files. In Elements 10 when I try to use some of the tools to adjust these 16 Bit files I get a window stating :- "Could not perform the requested action because Photoshop Elements provides only limited support for files with 16 Bit colour depth. Do you want to convert the image to 8 Bit colour depth." When I convert I can use all the tools. This is similar to Corel P.S.P. X3 - but in Corel P.S.P. X3 when you have finished adjusting the image and just before you save it - there is a tool that allows you to convert the image back to 16 Bit colour depth. Question:- Is there any way you can convert files back to 16 Bit colour depth in Elements 10 before saving.

[email protected] wrote:
... This is similar to Corel P.S.P. X3 - but in Corel P.S.P. X3 when you have finished adjusting the image and just before you save it - there is a tool that allows you to convert the image back to 16 Bit colour depth. Question:- Is there any way you can convert files back to 16 Bit colour depth in Elements 10 before saving.
Converting back to 16 bits gives no advantage, as Barbara said. You don't bring back the information again. It has been said that if you want to apply heavy edits afterwards, starting with 16 bits should 'theoretically' yield better results... I have tried to show a difference, but I have been unable to provide conclusive practical examples, even with drastic edits.
Note that it is easy to convert an 8 bits jpeg or tiff to 16 bits in Elements via the ACR raw conversion module. Open your 8 bits file in ACR, set the menu to 16 bits (in the middle of the bottom bar) and click 'open' to get it in the editor. From there you can edit in 16 bits and save as tiff or psd if you want.
To open a jpeg or tiff in ACR , use the menu 'open as' and select the 3rd option 'raw...'

PSE 10 as external editor for Aperture 3 - 8-bit TIFF and what color space?

Hi all,
I'm taking the plunge and trying PSE 10 as my external editor for Aperture 3. I understand that I need to export as 8-bit TIFF files (not 16) because PSE can't do certain things with 16-bit files. Is that right? Should I specify a color space in Aperture or leave it as "no profile selected"? (I don't know much about color spaces; I'm not a pro.) I print on an Epson RX580 Stylus Photo printer, if that matters.
I'll be grateful for any help and advice. Thanks.

Can I suggest you buy Philip Andrews book, Advanced Photoshop Elements 10. he explains colour spaces and much much more very clearly and exactly what can be done with 16 bit files and what you then have to change to 8 bit to accomplish. He's written basic and advanced guides for Elements since day one. Usually available from Amazon for under £20.

Import 16 bit tiff files in premiere pro cs5 ?

When i try to import a 16 bit tiff sequence I get an error message "The video bit depth of this file is unsupported.".
I could not find how to set bit depth in project, however I understand from the help files that 16 bit workflow is supported.
What I am doing wrong?

Hi again Salazaroo....
Thanx for your answer...
I am working in a project shot with RedOne and the output will be 35mm and DCP.... we´ll made the prints with Cinevator system as well... same as yours...
What I did is open the Pr project in After effects and from there export the R3d as DPX to work in the compositings... I am trying different ways to do this... change the R3D settings to RedLog and RedSpace before to export as DPX OverRange, or PDLog985 and RedSpace before to export as DPX Standard (as Mark Christiansen says in THIS SITE) ...
Once I do it, I import the DPX to start the composition... so I change the Cineon Settings to OverRange or Standard (depending of the settings at export) and apply the Cineon Converter LogToLin... but then everything looks too overbright to work... I am working with the DPX and .psd and tiffs together so it is like crazy to match everything together...
I tried to export as PDLog985, RedSpace and OverRange Cineon Settings (instead of Standard) and it looks much better... I check the picture looking at the Info panel and everything is Ok, or close the 'Iris simulator' and detail appear in the image, ...but when I check different elements coming from matte painters and 3d artist, whites clip at 1... how can i match everything together in the same space color to work and then apply the Cineon Converter LintoLog before export???
This is the first time I work with DPX and I am reading a lot about it, but I could´t find a step by step explanation... and it is like there are many ways to deal with it... some people says to use a general Working Space, some people says don´t (See this Article) ...
Thank you man.... I really appreciate your help....

Trouble importing 32-bit TIFF

I have files from another application that are 1 megapixel with 32bit/pixel depth. Photoshop says the bit depth is unsupported when it tries to read it, but I know the program can work with 32bit/pixel images. I want to be sure I don't lose data on the way in, so converting to 16 bit is not an options. I'm running CS4 extended on Max OSX 10.6.4 with 4GB ram.

Thanks for the reply. I should have specified that the images are monochrome (1 channel) with 32 bits per pixel, as I believe you'd have in an HDR image. The bitdepth parameter on the TIFF (read with another program, Mathematica) confirms that it is 32bit/pixel. The images are captured from a 16bit monochrome camera made by Princeton Instruments (PIXIS) and are accumulated over 10 images using their WinSpec program, which results in something larger than 16bits, so they use 32.
From looking at the Adobe PS documentation, I see that it supports working with 32bit/pixel HDR images, and can at least write 32bit tiffs. Maybe it doesn't read them 32bit tiffs at all, or maybe the program that is writing the files doesn't format the files in a way that PS can read them.

Can't export 16 bit tiff in A3.1.3 Lion

If I try to export a 16 bit tiff, the extension automatically changes to jpg. I can only export an 8 bit tiff. Thanks for any tips.

Aloha Tom and Ashley. Perhaps I should start another thread. This is my first time looking for help in this way. Thanks in advance Ashley are you going from Keynote to iMovie to FCE? Sure would be nice if we didn't need so many steps! The only reason I am in FCE is because I have been unsuccessful in getting a QT export from Keynote that marries sound file with movie and is stable.
Tom here is how I exported. Playback uses: manual advance, Compression H.264, Frame rate 29.97, keyframe - all, data rate automatic, compression quality - best. Then I imported to FCE, married music and movie (so easy), rendered and exported with same settings. Big black area around movie, little tiny movie in middle. Then I discovered on the Sequence canvas there is a drop down with the choices <image> <image with wire frame> <show overlays> When I select image with wire frame it looks like it is creating a larger letterbox. But the export output when it is large is both fuzzy and distorted even when I import a 1920 x 1080 version.
Tom/Ashley perhaps this isn't the program to use. All I need is a high res 16:9 QT with music and movie married into one file and stable being used on computers and LCD players. It will not be TV viewed. I could reframe the Keynote to 4:3 if I have to to get the viewing size and image quality.
What would you suggest. And again thank you. I have been fiddling with this for weeks, with progress but no success. Cathy

Save U32 bit image as 16 bit tiff

Right now I am using IMAQ to grab a RGB(U32) color image in real-time. I am then trying to save the image as a 16 bit tiff file. However, the images only save as 8 bit tiff files. How can I fix this problem?
Thanks,
David

Hi David,
The simple VI that I attached reads an image from file and writes it as a TIFF. If you would like to test it, you can open up one of the images in the Vision >> Images folder (for example, candy.png which is U32) and you will see that it should save it as a U32 TIFF file. If the image you are reading in is I16 (i.e. IMAQ Create has type I16 wired in as a constant) then you should get an appropriate image out. If you are successful with this VI, I would recommend migrating it into your application. I hope this helps give you a good start.
Vu
Attachments:
Write TIF.vi ‏55 KB

16 bit tiff to 12 bit conversion

I need a algorithm to convert 16-bit tiff files with pixel values ranging from -32768 to 32768 to 12-bit values ranging from 0 to 4095. The algorithm provided by NI (http://zone.ni.com/devzone/explprog.nsf/6c163603265406328625682a006ed37d/10560a596bddd342862566c70062a743?OpenDocument) doing a 16->8 bit conversion seems not to work if the brightness values are negative [-32768..0[. Is any help out there ???

Hi,
1) Convert the number to I32,
2) Add a (I32 constand with value) 32768 to it.
The result is a 16 bit positive number, ranging from 0 to 65535.
3) Use 'Rotate Right With Carry' (Carry = FALSE) on the result.
We have a 15 bit integer.
4) repeat 3) , 14 bits result
5) repeat 3) , 13 bits result
6) repeat 3) , 12 bits result, ranging from 0 to 4095 !
Offcause you can make a for loop repeating step 3) fout times, but don't
forget to put the result in a shift register!
This is, Btw. a very crude way of color reduction...
Regards,
Wiebe.
"mino" wrote in message
news:[email protected]..
> I need a algorithm to convert 16-bit tiff files with pixel values
> ranging from -32768 to 32768 to 12-bit valu
es ranging from 0 to 4095.
> The algorithm provided by NI
>
(http://zone.ni.com/devzone/explprog.nsf/6c163603265406328625682a006ed37d/10
560a596bddd342862566c70062a743?OpenDocument)
> doing a 16->8 bit conversion seems not to work if the brightness
> values are negative [-32768..0[. Is any help out there ???

16 Bit Tiff Images Display Bug?

Question 1:
Is there a problem with Aperture 2.0 displaying 100 + mb 16 bit tiff images generated by a film scanner (nikon coolscan 4000 ed)? I am having trouble with my library that I migrated from Aperture 1.5. All of my images were working fine in Aperture 1.5 (and previously in iPhoto as far back as 2003). In Aperture 2.0 I am getting scrambled images and some images that read unsupported file format. The problem is sporadic. It effects some images and not others. Sometime images display correctly and sometime they become scrambled and unsupported, and then back again.
There is no trouble with the images themselves. I export them to CS3 with no distortion or trouble. The problem seems to be in Aperture 2.0.
I have re-built the library, tried migrating images, changed the color profile.... I think I have exhausted every trick I can manage from a user vantage point. The images work fine when converted to 8 bit files. This is not the solution for me - I need to keep these images 16 bit.
Question: Is this this just my version (I purchased downloaded upgrade), that is having trouble, or is this a wider problem that Apple aware of and is looking into?
Please advise. I have 1000's of scanned pictures that I have been working with for years that were fine and now are not. I purchased a new Mac Pro 2.8 so as to work more productively with these large images - and now it seems that the very software I rely on has failed me.
I have not been able to find any comments from Apple regarding this issue.

I've had this problem with images saved as 8-bit scans.
Are you using any compression in the TIFs? I scanned using Nikon Scan 4, cleaned up a bit in Photoshop 7, reduced the bit depth to 8-bit, and saved at TIFs with embedded colour profile using ZIP compression, Macintosh byte order.
This used to work with Aperture 1.5.6, but with Aperture 2.0 I see a kind of offset pattern, so a vertical line looks like this:
If export the master TIF, open it in Photoshop (where it looks normal) and save it with no compression Aperture displays it properly.
(I'm still using Tiger, so I don't think this is an OS issue.)

16-bit TIFFs seem to have a blue hue

I modified the original images (usually RAW) with photoshop, and saved them as 16-bit TIFF files so as to retain as much quality as possible.
(I am using a collection in photoshop elements to manage the pictures, and itunes syncs them from there.)
Yet, when they sync to my ipod/color 60g, they have a blue-ish hue to them.

open system preferences (either from dock or click on the apple pic top left of screen and select from drop down) or from a finder window: applications, and then click on displays>color then> calibrate and you can play with colors there... and yes, you can click to get it to factory settings..

ACR with 32-bit tiffs?

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