32 bit tiff files

Lightroom 5.4 has been blacking out the whole image of some of my 32 bit tiff files in the develop module and sometimes in the library module. Has anyone else encountered this problem?

Alex LK wrote:
... Why is the camera only able to produce a fraction of the total 16-bit depth? Also, does this mean that if an image were 14/16 it would become 28/32 when converted?
The 16 bit channel is a carrier -- a standard 16-bit element. The information content of those data bits depends on the source data; that is, the camera sensor. A 16-bit container does not mean that any and all data placed therein has 16 bits of usable data. Will an increase or decrease of 1 value in a range of 4096 values (12-bit) actually represent useful image data -- a real light level difference -- or just noise? Larger, newer, and often more costly camera systems can discriminate between a greater number of steps from zero to maximum value; those that can discern a non-noise light level difference in a range up to 4096 (0 to 4095) use 12-bits; those that discriminate more than 4096 levels will require more than 12 bits. I'm not a camera expert; but my guess would be that either there is limited if any need for 16 bits of camera sensor data capture (more than 32K steps in range) or that a camera providing such useable precision would be more expensive than the value of the added precision.

Similar Messages

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. ???????

16 bits Tiff files with Photoshop Elements

Hello,
I scan slides and films and get 16bits Tiff files. For post scan processing I would like to use PE but on the one I have (PE6 for Mac) most of the time before I start using a tool PE is asking me to convert the file into 8bits 'cause Element doesn't manage everything with 16bits files. Do you know if this is likely to change or if I need to buy Photoshop for my needs (as lomg as Photoshop works with 16bits which I assume it does).
Thanks for your answer and advices
Pierre

Thanks for your answer.
Pierre
Envoyé de mon iPhone
Le 24 juil. 2009 à 16:18, Barbara Brundage <[email protected]> a
écrit :
Adobe seems to want to keep this as one of the distinctions between
PSE and PS. If you want to work with layers in 16 bits, you need to
move to PS. All you have in PSE are the more basic functions.
>

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....

12- and 14-bit Raw file conversion to 16-bit tiff

Does anyone know how Camera Raw converts the 10, 12, or 14 bit RAW file data(14-bit D3 .NEF here) into the 16-bit tiff files it can produce. I assume it either manages to leave empty space in the file, or interpolates by some means. If interpolation is the answer, is it by a method analogous to one of the spatial resizing methods(nearest neighbor or bilinear)?

Keep in mind that a 16bit image format (eg, TIF) is actually a container, and I've seen many variations on putting lesser bit depths in the format. EG, 10bits may only be stored in the first 1024 bins, or the same 10bit data may instead be stored in every 6th bin - the latter of which is the most common and best way. When I look at the 16bit histogram after ACR has converted 12bit RAW to 16bit TIF, it is as if 12bits has been converted to 16bits (actually 15bits), because every bin appears to have data in it.
As to how it's actually done, it may be proprietary ... but someone else may be able to draw conclusions from the open algorithms that are available (eg, dcraw).

Exporting R3D file to 12-bit TIFF?

Done the max settings in 'general' when creating a project, and likewise in 'sequence', but whatever setting I try all I get are 8-bit tiff files.
Is there something I've missed?

So how can Premiere claim to be fully RED compatible if it cannot export at the same resolution?
Or am I misunderstanding something?

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.

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 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..

Not enough memory (RAM) error. Can't open TIFF file.

I can't open a 74MB TIFF file in CS5 photoshop. I get error message: Could not complete your request because there is not enough memory (RAM).
I have 16GB of RAM and 55.5 GB of scratch disk.
I am using my recently installed copy of Photoshop CS5 64bit on a virtual Windows7 machine running in Parallels on a recently bought MacBookPro. This software (now deactivated) has run successfully on an XP machine and has successfully open TIFF files of this sort before.
I don't know whether this is relevant, but I can't update my copy of photoshop either. It downloads the updates, but will not install them.

I have discovered that the problem is that the TIFF files I am tying to open are 32 bit files. There are several references on the Internet to Photoshop not being able to open these files These are output files produced by the astro-imaging software Deep Sky Stacker. Within DSS I can save the 32 bit TIFFs as 16 bit files which photoshop CS5 can open fine.
Does anyone know whether Photoshop CS5 can open 32 bit tiff files at all? Would it help if I could update my version of Photoshop (see update problem above)?

Crashes with Snow Leopard when opening TIFF files.

There seems to be a general problem with opening certain TIFF files in 10.6.1. Preview, Quicklook, even Get Info in the Finder cause app crashes (and Finder restarts). It seems to affect almost all apps (but not, interestingly, Photoshop CS3). It only happens with certain TIFF files, but totally consistently. It happens whether or not 3rd party apps are running. To reproduce, open such a file in Preview, or use Quicklook, or Get Info in the Finder.

I have a RIP on a PC creating 1-bit TIFF files. They open just fine in Photoshop or other 3rd party programs. However when I try and open them in preview they immediately crash the program. Now I have also noticed that when I select the item and try to get info (to change the default program to open with) the FINDER crashes too!
Getting info on a file can actually crash the Finder? C'mon Apple gimme a break here... a 1-bit TIFF should be no problem.

Convert 16 bit tiff?

I am trying to recover disk space and have been using the DNG Converter to save 10-20 percent on my Canon cr2 files
I also have over 256 Gigs of 16 bit tiff files that I have outputted over the years from the HDR program Photomatix Pro,
When I originally saved them I saved them at a bit depth of 16 so I would have more to work with for the final editing.
So, on average the tiff files are each about 100 megs, I am guessing that as a DNG , it would shrink that by about 75%
DNG converter doesnt like the 16 bit tiffs and skips them.
Is there another piece of software that can convert 16 bit tiffs to DNG
OR
Is there another piece of software that can batch convert 16 bit tiffs to 8 bit so I can dump then them into the DNG converter without having to do each file one by one.
Thanks
Todd McIntosh

I have not used it before to convert 8-bit Tiffs.
I am only assuming it does so, because the program pulls the tiff files into the cue when you have them in the folder you are converting.
When the program goes to convert them (16 bit tiffs) it gives me a status of ...
"there was an error parsing the file"
Perhaps I am incorrect in assuming the results would be different with an 8 bit Tiff.
Hmmmm,
Todd

Server goes out of memory when annotating TIFF File. Help with Tiled Images

I am new to JAI and have a problem with the system going out of memory
Objective:
1)Load up a TIFF file (each approx 5- 8 MB when compressed with CCITT.6 compression)
2)Annotate image (consider it as a simple drawString with the Graphics2D object of the RenderedImage)
3)Send it to the servlet outputStream
Problem:
Server goes out of memory when 5 threads try to access it concurrently
Runtime conditions:
VM param set to -Xmx1024m
Observation
Writing the files takes a lot of time when compared to reading the files
Some more information
1)I need to do the annotating at a pre-defined specific positions on the images(ex: in the first quadrant, or may be in the second quadrant).
2)I know that using the TiledImage class its possible to load up a portion of the image and process it.
Things I need help with:
I do not know how to send the whole file back to servlet output stream after annotating a tile of the image.
If write the tiled image back to a file, or to the outputstream, it gives me only the portion of the tile I read in and watermarked, not the whole image file
I have attached the code I use when I load up the whole image
Could somebody please help with the TiledImage solution?
Thx
public void annotateFile(File file, String wText, OutputStream out, AnnotationParameter param) throws Throwable {
ImageReader imgReader = null;
ImageWriter imgWriter = null;
TiledImage in_image = null, out_image = null;
IIOMetadata metadata = null;
ImageOutputStream ios = null;
try {
Iterator readIter = ImageIO.getImageReadersBySuffix("tif");
imgReader = (ImageReader) readIter.next();
imgReader.setInput(ImageIO.createImageInputStream(file));
metadata = imgReader.getImageMetadata(0);
in_image = new TiledImage(JAI.create("fileload", file.getPath()), true);
System.out.println("Image Read!");
Annotater annotater = new Annotater(in_image);
out_image = annotater.annotate(wText, param);
Iterator writeIter = ImageIO.getImageWritersBySuffix("tif");
if (writeIter.hasNext()) {
imgWriter = (ImageWriter) writeIter.next();
ios = ImageIO.createImageOutputStream(out);
imgWriter.setOutput(ios);
ImageWriteParam iwparam = imgWriter.getDefaultWriteParam();
if (iwparam instanceof TIFFImageWriteParam) {
iwparam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
TIFFDirectory dir = (TIFFDirectory) out_image.getProperty("tiff_directory");
double compressionParam = dir.getFieldAsDouble(BaselineTIFFTagSet.TAG_COMPRESSION);
setTIFFCompression(iwparam, (int) compressionParam);
else {
iwparam.setCompressionMode(ImageWriteParam.MODE_COPY_FROM_METADATA);
System.out.println("Trying to write Image ....");
imgWriter.write(null, new IIOImage(out_image, null, metadata), iwparam);
System.out.println("Image written....");
finally {
if (imgWriter != null)
imgWriter.dispose();
if (imgReader != null)
imgReader.dispose();
if (ios != null) {
ios.flush();
ios.close();
}

user8684061 wrote:
U are right, SGA is too large for my server.
I guess oracle set SGA automaticlly while i choose default installion , but ,why SGA would be so big? Is oracle not smart enough ?Default database configuration is going to reserve 40% of physical memory for SGA for an instance, which you as a user can always change. I don't see anything wrong with that to say Oracle is not smart.
If i don't disincrease SGA, but increase max-shm-memory, would it work?This needs support from the CPU architecture (32 bit or 64 bit) and the kernel as well. Read more about the huge pages.

(CS4) Why is Premiere CS4 modifying TIFF files in a sequence?

Hello,
decided to post here, because I didn't find any old postings of this subject anywhere.
I'm composing 2-d drawn animation on AE and editing in Premiere, then importing to
Avid media composer for exporting to Sony Digital Beta tape via SDI. When working in
CS3 and earlier, everything was nice, AE made about 1730 kB TIFF files and Premiere
kept them the same size, you just needed to select export -> movie... Tiff sequence,
deselect recompress, select best quality and optimize stills. File sizes were the same,
and I could rest assured that the original AE image quality was still there.
Now in CS4, something fundamental has changed. AE CS4 still makes perfect TIFF
animation frames (at 1024x576 same as CS3, about 1730kB and at 1050x576 about
1770kB).
So far, so good.
In Premiere 2.0 and 3.0, you could select a preselection 720*576 pal widescreen
composition and when exporting the edited animation would get the same pixel-level
IQ as from a custom Desktop: 1024*576 square pixel composition, when using the
Export movie described above. This to me looks like Premiere uses the original
TIFF material.
But in Premiere 4.0, something weird happens. If I use a 720*576 pal widescreen
preset (with AE CS4 1050*576 animation sequences) and export 1050*576 pal
widescreen square pixel image sequences, Adobe Media Encoder chops off 330
square pixels and stretches the image horizontally for blurred, sad results.
EXPORT MOVIE never did this!
Having found that out, I use only custom-> desktop: 1024 or 1050 projects now,
but here again something weird happens: Adobe Media encoder adds about 600kB
to every TIFF frame, and I'm almost unable to notice the difference, but I would say
that the images certainly don't look any better than the ones that were imported to
Premiere, more on the opposite. So, in every option but when exporting one TIFF at
a time Media Encoder alters the superb AE TIFFs.
Why on earth does Adobe want to add a huge amount of useless bits, in animation
the disk space required increases very significantly. What was wrong with the
EXPORT MOVIE option?
I'm asking should I just edit in Premiere 3 if I want unchanged, superb AE quality
TIFF sequences? Premiere gives it when I export only 1 frame, but as soon as I tick
"Export as sequence" it starts Adobe Media encoder which affects all frames, even
those with no Premiere effects on them. Premiere 3 preserved original IQ even in
PAL editing mode (export movie uncompressed) but Encoder in CS4 either
loses 30% of the pixels or adds about 600kB more air!?!?!
1050*576 is not a must for me because I want web movies to be 16:9 sqpix and
the Avid where I work in prefers 1024*576 over 1050*576 in Digital Betacam tape
exporting for uncompromised broadcasting results.
This issue is affecting many animatiors here in Finland, in CS3 and earlier there
were no problems because Premiere respected AE quality work, but now this Media
Encoder has messed things up, not selecting Custom-desktop-1024/1050 will ruin any
animation movie image sequence and selecting it makes files A LOT bigger without any
improvement in IQ.
I hope someone from Adobe could explain what on earth is going on in Premiere
development? Many animation professionals in Finland are awaiting your kind reply.
Anyone with a clue what's going on in the altering can give a hand!
Olli Laamanen, Finland

I did additional testing by comparing exported frames from Premiere
to the AE frames. Only when I delete all render files before export, do I get
the same image pixel-wise. But then there's the extra ~600kB of data.
Does anyone know what that is, a colleague suggested it might be the color
profile or some metadata added by adobe media encoder. I'd really like
to know what it is! Someone who knows something about this Adobe
Media Encoder might have the answer.
So if you are using AE and Premiere to make animation and want to
keep your master footage unchanged, the equivalent for CS3 export ->
movie -> TIFF uncompressed is to
-work only in desktop mode
-delete all render files before exporting media through the encoder
otherwise CS4 will change your images.
Like this it doesn't change the images but adds over 30% additional
data (somekind of tags/metadata)?
Anyone with a guess what it is, please help!

32 bit tiff files

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