raw conversion
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Hi-
I'm using digiKam 1.2.0 on debian squeeze, and I'm really enjoying it. I have a lot of photos in raw format -- rw2 from a Lumix LX-3, which digiKam does a nice job of previewing. However, I can't figure out how to convert them as a batch within digiKam, using the same process that it uses to generate the preview. Not only does digiKam interpolate, but it also takes care of white balance (based on exif data, I'm guessing?) and barrel distortion. If I use one of the conversion tools provided, it only interpolates, and does not take care of white balance or barrel distortion. Is there a way I can batch convert to jpeg with all of the niceties of the digiKam raw preview? Thanks, John _______________________________________________ Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
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John Barnett píše v Po 27. 12. 2010 v 12:44 -0500:
> I have a lot of photos in raw format -- rw2 from a Lumix LX-3, which > digiKam does a nice job of previewing. However, I can't figure out how > to convert them as a batch within digiKam, using the same process that > it uses to generate the preview. Not only does digiKam interpolate, Check menu Settings / Configure digiKam / Album view. I assume that in your case the item in Misc Options "Embedded preview loads full-sized images" is unchecked (therefore the preview is based on JPEG embeded in rw2 and digiKam does not do any conversion). > Is there a way I can batch convert to jpeg with all of the niceties of > the digiKam raw preview? > digiKam uses a different tools to convert from raw to JPEG than the camera manufacturer. Therefore, the result does differ. Depending on what is the resolution and quality of the JPEG embedded in raw file, you may want to extract it [1] and compare side by side with digiKam's output. However, if you consistently find the embedded JPEG better, then shooting in raw may not be your target... [1] try: $ exiv2 extract -ep1 image.rw2 where -ep1 is the first thumbnail embedded in the raw file (some raw formats have more thumbnails). Regards, Milan -- http://www.milan-knizek.net _______________________________________________ Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
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Thank you!
I discovered after I wrote the message that digiKam was using the embedded preview. I guess that means that if I want to use raw, I'll have to work on it some more. Thanks again, John On Tue, Dec 28, 2010 at 3:26 AM, Milan Knížek <[hidden email]> wrote: > John Barnett píše v Po 27. 12. 2010 v 12:44 -0500: >> I have a lot of photos in raw format -- rw2 from a Lumix LX-3, which >> digiKam does a nice job of previewing. However, I can't figure out how >> to convert them as a batch within digiKam, using the same process that >> it uses to generate the preview. Not only does digiKam interpolate, > Check menu Settings / Configure digiKam / Album view. I assume that in > your case the item in Misc Options "Embedded preview loads full-sized > images" is unchecked (therefore the preview is based on JPEG embeded in > rw2 and digiKam does not do any conversion). > >> Is there a way I can batch convert to jpeg with all of the niceties of >> the digiKam raw preview? >> > digiKam uses a different tools to convert from raw to JPEG than the > camera manufacturer. Therefore, the result does differ. > > Depending on what is the resolution and quality of the JPEG embedded in > raw file, you may want to extract it [1] and compare side by side with > digiKam's output. However, if you consistently find the embedded JPEG > better, then shooting in raw may not be your target... > > [1] try: > $ exiv2 extract -ep1 image.rw2 > where -ep1 is the first thumbnail embedded in the raw file (some raw > formats have more thumbnails). > > Regards, > Milan > -- > http://www.milan-knizek.net > > _______________________________________________ > Digikam-users mailing list > [hidden email] > https://mail.kde.org/mailman/listinfo/digikam-users > Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
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RAW preview = JPEG image processed by camera.
It's not an image computed from RAW image data ! If JPEG sound better and look like you want, just shot in RAW + JPEG. RAW must be processed by hand. Use RAW import from image editor. There is also a way to process RAW in Batch Queue Manager. In this case RAW decoding settings from digiKam config panel is used as well. It's not the best workflow, because a config panel for RAW decoding + Raw post processing must be available for each queue in BQM. It still in my TODO list. But at least, it must work automatically to process RAW in batch. Anyway, you have also, Batch Raw converter from kipi-plugins, without any more options. When BQM RAW support will be fully implemented, this batch tool from kipi will be disable in digiKam. Best Gilles Caulier 2010/12/28 John Barnett <[hidden email]> Thank you! _______________________________________________ Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
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