From: Enblend <enb...@li...> - 2009-10-25 14:52:40
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Bugs item #2885858, was opened at 2009-10-25 12:01 Message generated for change (Comment added) made by harryvanderwolf You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=696409&aid=2885858&group_id=123407 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Internal error Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Harry van der Wolf (harryvanderwolf) Assigned to: Nobody/Anonymous (nobody) Summary: 16bit Tiff's containing preview imgs "stop" enfuse/enblend Initial Comment: 16bit Tiff images sometimes contain small preview images. Canon camera's (can) do this for example, but also some programs (can) do this, also when converting from raw to 16bit tiff. It means that the tiff contains actually 2 images: a "normal" 16bit image with an alpha-mask, and an 8bit thumbnail without an alpha mask. Enfuse/enblend can deal with multilayer tiffs and will compensate for differences in size (e.g. the thumbnail). However, it can't work with tiffs with and without an alpha-mask or with different bitdepths. This makes both enblend and enfuse stop. enfuse mentions when running "enfuse -o pipo.jpg img_0141.tif img_0141_ds1.tif ": enfuse: warning: input image "img_0141.tif" does not have an alpha channel; enfuse: warning: assuming all pixels should contribute to the final image enfuse: warning: input image "img_0141.tif" does not have an alpha channel; enfuse: warning: assuming all pixels should contribute to the final image enfuse: input image "img_0141.tif" has pixel type UINT8, enfuse: but previous images have pixel type UINT16 enblend mentions when running "enfuse -o pipo.jpg img_0141.tif img_0141_ds1.tif": enblend: input image "img_0141.tif" does not have an alpha channel Both test images contain a 2912x4368 and 182x273 image. Note: When using tiffsplit to separate the big ones from the previews, I can enblend/enfuse both sets without problem. note 2: I can't generate the images from my camera or software and can't add them now. I have asked both owners if the images can be used for "bugfixing". I have no answer yet. I still filed the bug now as I think the issue will occur more and more when users are going to use these 16 bit tiff images, converted from their RAW images (as I understood: default Canon hardware and conversion software behaviour). ---------------------------------------------------------------------- >Comment By: Harry van der Wolf (harryvanderwolf) Date: 2009-10-25 15:52 Message: I received permission ("yes please do") from one of the users. As the images are 146 MB (total) in size I can't upload them to SF. They can be found at http://harryvanderwolf.dyndns.org/tmp/thrift/. I bzipped both images. They are 2 "false bracketed" images from the same RAW Canon image. It's from my resident server which doesn't have huge bandwidth. You can off course only download one and copy it as that doesn't matter for the process. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=696409&aid=2885858&group_id=123407 |