I'd like to stitch together a panorama out of raw images in Photoshop CS5. The problem is, that I don't want the result to be a 8-bit jpeg. I want to have a raw image that keeps all the information the original raw images had so that I can modify contrast, white balance etc. later on.
I can't figure out, how to use the Photomerge tool on raw images and have a 16-bit result. It seems to me like Photoshop automatically compresses the result into 8-bit and erases valuable information irreversibly.
I use Photoshop CS5 Extended (from the CS5 Production Premium) on a Windows 7 64-bit Desktop.
Thank you in advance!
Here's what I'd do (and there are many ways to do this I'm sure)
Use Camera Raw or Lightroom to generate 16bit tiff images of your pano segments.
In PS go to file/scripts/load files into stack - in that dialog select 'attempt to auto align', see what happens.
If things line up nicely you select your pano layers and use edit/autoblend and you're pretty much done, unless you have to touch up stuff before autoblend and maybe transform for perspective, etc. You could use a duplicate set for the above step too, if you want to maintain your original images. Save original pano work file as PSD or PSB, flatten and downsample to 8bit for distribution.
AFA "use the Photomerge tool on raw images", I don't believe you can do 'anything' with raw images - you need to convert them into something first, like tif, jpg, psd whatever.
I make multi-row panoramas, and while I have had OK results with Photoshop, the best solution I have found is the Kolor Autopano Pro product (sorry Adobe ). It accepts images in RAW format as well as TIFF and others. It is very, very efficient, and the results are amazingly accurate, and you can save the render as 16 bit TIFF and PSD or PSB formats for later processing in Photoshop.
I've just recently been using my new GigaPan Epic Pro and their Stitch software - it works very nice w/raw images too, but will export only flattened files.
Does the Kolor Autopano Pro product retain layer integrity on export?
Yes it does render with layers intact, just need to select that option. It can also give you an Alpha channer in case you need to do some clean up, like someone walking through your scene. But pretty much the anti-ghosting fixes many of those issue, but the Alpha channel is available again, an output rendering option
So is it possible to retain all the color information in a tiff-panorama? Because I'd like to open up the panorama in Camera Raw later on and adjust it as I need to. Is that possible with a tiff image which is stitched together out of other tiffs? Well, I'm confident, I could manage to convert the raw files into tiff!
"Because I'd like to open up the panorama in Camera Raw later on and adjust it as I need to." My experiance with camera raw is pretty much as a 'import' step for work in PS - I just can't see why you would revert to work on a pano in Camera Raw, when PS is the heavy hitter for the kinds of image adjustments/editing I could think of doing to an image. But maybe that's just me...
I do panoramas in Photoshop CS5 and now CS6 starting with the RAW files. I work on RAW files from Bridge and after I complete the RAW adjustments in ACR, I click the Done button and it saves the settings and returns me to Bridge. If you want to have 16 bit files, set ACR to 16 Bits with the color profile you want (16 bits with sRGB, aRBG, or Pro Photo RGB) before you click the Done Button. In Bridge, select the RAW files you want to use in the Panorama and then click "Tools > Photoshop > Photomerge. This will switch to Photoshop with Photomerge active and the RAW files selected. Make and anjustments you want in the Photomerge box and the click the OK button. Photomerge will open the RAW files in 16 bit mode using the profile you selected and generate a Panorama. After it completes I click on the Megre Visible, rotate the image if required, and then select the visible image do an invert selection and grow the selection by 5 pixels and run "Content Aware Fill" if required. Then flaten the image, crop, and save as required (16 bit TIF it that's what you want).
Well if you like the ACR interface and tools you can open your rendered TIFF pano in Bridge and right click and open in Camera RAW, make your changes and open in Photoshop. Sometimes I do this as I find if I am in a hurry the highlight controls quicker to use than PS. Then open in Photoshop for final editing, sizing and printing.
Note: with 16 bit TIFF you are not loosing any color detail from the RAW conversion, and I read in the Lightroom guide (or was it a pop-up going from Lightroom to Edit in Photoshop) that TIFF was preferred over the PSD.
I tried b2martin_a's method and it worked quite well. But still it isn't exactly what I wanted.
I applied the exact same "development" settings from Camera Raw to the original files and to the panorama. But the panorama looked different and I had to adjust it.
This is the original image with some processing through Camera Raw (saved as jpeg).
This is the (quickly cropped and jpeg-version) panorama with the exact same ACR settings as the image above. It was stichted together out of the unedited orignal images!
The settings on this were adjusted. (Again, cropped jpeg.)
So I'm wondering why there is this dramatic difference between the images, even though they should have the exact same information stored?!
The main problem is solved, I'm now just wondering, if the images have exactly the same color information! So I'd like to thank everyone who answered and helped so far!
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