Hi, when I enable to save images in RAW mode too, it works for single shots. However, if I enable HDR, only the JPGs would be saved, although the RAW option is still enabled. I'd like to have a RAW version for every step and for the final image.
I think RAW and HDR is no contradiction, and it's just bug, no?
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Arguably it's not something that makes sense - the whole point of RAW is to be the raw output from the camera sensor, which wouldn't be the case with a HDR image processed from multiple exposures. From a practical point, there's the problem that the Android API doesn't have built-in support for editing DNG images, so there'd be a lot of work to add the functionality to edit the DNG images.
What might make more sense is to save out the "HDR images". HDR actually involves two phases: there's the creation of the HDR image, then there's a tonemapping phase to compress the high dynamic range into 32-bit RGBA images. But there are some file formats that can store HDR images directly (such as EXR), so potentially I could add support for that, but that's different to RAW/DNG.
It might help to know what you're after - what are you planning to do with these RAW images? Or is it that you're just after lossless images (in which case, this could be done by saving as PNG instead of JPEG)?
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If I understand you right with the lack of built-in support for editing/manipulating DNG images, then you're right in so far that it might be too difficult to implement to have the final merged image available as a DNG image too.
However, at least I'd like to have the different exposure shots as DNG images then. I'll merge them myself with photo post-processing software. Because that is the whole point of all that. ;) And I believe that should be easily possible to implement, no?
And it's not only about losslessness (my LG-G4 can't save PNGs anyway), but also about having much more control and options with raw images.
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First, I'd like to say that this camera app rocks! I'm also looking for the feature mentioned above. My end goal is to create HDR photospheres, which are very useful for lighting 3D environments in game engines, 3D animations, and on websites like Sketchfab. The process involves taking HDR photos in all directions with 32-bit depth. PTGUI, the software I use to create photospheres, can support HDR or bracketed DNG images.
I've tried Open Camera's exposure bracketing at 100% JPG quality on my Galaxy S7, and it still introduces some artifacting around high-contrast edges, such as trees against a sky. It also loses some range on both sides of a 5-exposure bracket.
My feature request is to have one or both of these options available:
* Have an option in HDR mode to export a 32-bit un-tonemapped image like a Radiance, EXR, TIFF, or DNG file. This option would be a great way to skip the "Merge to HDR" step in Lightroom which has to be done manually.
* Allow saving of RAW DNG files in exposure bracketing mode. This would probably be easiest to implement, and would be very helpful.
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I would also be interested in this, so I can make color adjustments and tonemapping manually without all the information loss that comes from working on a low range image.
I know that most apps don't support loading and working in HDR but I have no issue with transfering the files to the PC for this.
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Anonymous
Anonymous
-
2019-01-25
Hi, this would indeed be a most welcome feature. As a bonus, it should also work in expo bracketing mode. E.g. if i set 5 exposures 2 stops apart, I want to get all of the -4/-2/0/+2/+4 raws that I can have fun with in HDRI post-processing. And then why stop at 5... ;)
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RAW/DNG is supported for HDR (for the "base" expo images) and Expo modes in next version.
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Anonymous
Anonymous
-
2019-06-26
Thanks Mark, but unfortunatley expo bracketing seems to be very shaky for me via Camera2 API (RAW on or off) on the Huawei P20, anything that can be fixed in the app (v1.46)?
1) Must disable fast HDR/expo burst (otherwise always get EV0) - fair enough
2) With fast burst off, result seems to be the sequence 0/0/-2 (+2 is missing, in both raw & jpeg); jpeg metadata always says EV0 though
3) Can only get three different exposures w/o Camera2 API, and no raw obviously (metadata claims-4/0/+4 at that, although steps of 2 are asked for; but what I really got was -2/0/+4)
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Hi, when I enable to save images in RAW mode too, it works for single shots. However, if I enable HDR, only the JPGs would be saved, although the RAW option is still enabled. I'd like to have a RAW version for every step and for the final image.
I think RAW and HDR is no contradiction, and it's just bug, no?
Arguably it's not something that makes sense - the whole point of RAW is to be the raw output from the camera sensor, which wouldn't be the case with a HDR image processed from multiple exposures. From a practical point, there's the problem that the Android API doesn't have built-in support for editing DNG images, so there'd be a lot of work to add the functionality to edit the DNG images.
What might make more sense is to save out the "HDR images". HDR actually involves two phases: there's the creation of the HDR image, then there's a tonemapping phase to compress the high dynamic range into 32-bit RGBA images. But there are some file formats that can store HDR images directly (such as EXR), so potentially I could add support for that, but that's different to RAW/DNG.
It might help to know what you're after - what are you planning to do with these RAW images? Or is it that you're just after lossless images (in which case, this could be done by saving as PNG instead of JPEG)?
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If I understand you right with the lack of built-in support for editing/manipulating DNG images, then you're right in so far that it might be too difficult to implement to have the final merged image available as a DNG image too.
However, at least I'd like to have the different exposure shots as DNG images then. I'll merge them myself with photo post-processing software. Because that is the whole point of all that. ;) And I believe that should be easily possible to implement, no?
And it's not only about losslessness (my LG-G4 can't save PNGs anyway), but also about having much more control and options with raw images.
That makes sense, I've added saving DNG for the base exposures to my todo.
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Thx. :)
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First, I'd like to say that this camera app rocks! I'm also looking for the feature mentioned above. My end goal is to create HDR photospheres, which are very useful for lighting 3D environments in game engines, 3D animations, and on websites like Sketchfab. The process involves taking HDR photos in all directions with 32-bit depth. PTGUI, the software I use to create photospheres, can support HDR or bracketed DNG images.
I've tried Open Camera's exposure bracketing at 100% JPG quality on my Galaxy S7, and it still introduces some artifacting around high-contrast edges, such as trees against a sky. It also loses some range on both sides of a 5-exposure bracket.
My feature request is to have one or both of these options available:
* Have an option in HDR mode to export a 32-bit un-tonemapped image like a Radiance, EXR, TIFF, or DNG file. This option would be a great way to skip the "Merge to HDR" step in Lightroom which has to be done manually.
* Allow saving of RAW DNG files in exposure bracketing mode. This would probably be easiest to implement, and would be very helpful.
Ability to save the HDR file without tonemapping to JPEG sounds interesting too, I've added that to my todo as well.
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I would also be interested in this, so I can make color adjustments and tonemapping manually without all the information loss that comes from working on a low range image.
I know that most apps don't support loading and working in HDR but I have no issue with transfering the files to the PC for this.
Hi, this would indeed be a most welcome feature. As a bonus, it should also work in expo bracketing mode. E.g. if i set 5 exposures 2 stops apart, I want to get all of the -4/-2/0/+2/+4 raws that I can have fun with in HDRI post-processing. And then why stop at 5... ;)
RAW/DNG is supported for HDR (for the "base" expo images) and Expo modes in next version.
Thanks Mark, but unfortunatley expo bracketing seems to be very shaky for me via Camera2 API (RAW on or off) on the Huawei P20, anything that can be fixed in the app (v1.46)?
1) Must disable fast HDR/expo burst (otherwise always get EV0) - fair enough
2) With fast burst off, result seems to be the sequence 0/0/-2 (+2 is missing, in both raw & jpeg); jpeg metadata always says EV0 though
3) Can only get three different exposures w/o Camera2 API, and no raw obviously (metadata claims-4/0/+4 at that, although steps of 2 are asked for; but what I really got was -2/0/+4)