Can panorama stitching software work directly with RAW files, and what should I use?
Asked 2/15/2011
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I’d like to stitch multiple photos into panoramas from my Sigma 10–20mm shots. My current workflow with Hugin has been frustrating, especially having to leave Lightroom, convert everything to TIFF, and then stitch.
Is there any open-source software that can stitch from RAW files directly? If not, are there better panorama stitching options in general, including commercial software? I’m mainly trying to understand whether stitching can stay in the RAW stage or if conversion is always required.
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
15y ago
2 Answers
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There's unlikely going to be anything that takes several RAW photos, stitches them together, and then produces a RAW pano, which is what it sounds like you're after. The Photoshop + LR (and other pano software that take RAW as an input) combo makes it seem like it may because it loads up your RAWs to use, but its still TIFF converting and you still end up with TIFF.
RAW isn't really a file format like you're thinking. Its a collection of raw sensor data in a container. By nature, running it through the pano process will make it not RAW.
Use Lightroom to exposure balance your pano individual shots first, and then try Hugin with the TIFFs. Personally, I've had reasonable success trying that lately.
Originally by user1917. Source · Licensed CC BY-SA 4.0
user1917
15y ago
0
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Panorama stitching cannot remain truly in the RAW domain. RAW files contain sensor data, not a finished raster image, and stitching requires operations like rotation, sub-pixel alignment, warping, and cropping that need a demosaiced/rasterized image first. So even software that accepts RAW files is effectively converting them before stitching, and the result will not be a RAW pano.
A practical workflow is to first apply consistent adjustments to the source images in Lightroom or another RAW editor—especially exposure and white balance—then export to TIFF and stitch those files.
For open-source tools, Hugin is still the main recommendation, though it can take some practice to use well.
For commercial options, Photoshop’s panorama tools are a common choice, and Capture One has RAW-input panorama stitching as well. But in all cases, the software is still rendering the RAW data into an editable image during the process rather than preserving a true RAW output.
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