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0 pointsastrange3y ago0 comments

There is no consumer software that can do what the iPhone does with its sensors.

iPhone HDR produces an HDR image file. Consumer HDR apps do the opposite - they take an HDR raw and tone map an sRGB JPEG out of it.

The only portable format that really supports HDR images is EXR, so if you're not generating that you're not getting it.

(I don't think there's anything that can do deep fusion either, though obviously you need it a lot less.)

0 comments

_aavaa_3y ago

I don't think that's true. Capture One introduced HDR merging in one of their recent releases [0].

It does raw in "raw" out. You get a DNG out which is demosaiced. I have not yet looked to see what it's doing under the hood, and how the result compares to EXR. (But in my experience, it seems to struggle with large exposure differences, even when on a tripod).

[0]: https://support.captureone.com/hc/en-us/articles/44100147302...

astrangeOP3y ago

I mean, sure, producing another raw is one way to do it, but I wouldn't really call that an image format.

_aavaa_3y ago

I have no idea why you wouldn’t call it an imagine format.

But either way that’s changing the goal posts. Here is a consumer software doing what that iPhone does.

If that’s not to your liking, there is other software which produces 32bit float tiff images, those will support an even higher dynamic without the pain of EXR.

buildbot3y ago

You are all over this thread trying to prove that iPhones somehow have a unique setup in the industry that no other camera can match, and people keep telling you how wrong you are. DNG is 100% and image format, and can be “raw” or completely processed depending on the layers internally. Educate yourself before making such blanket statements.

1 more reply

sorenjan3y ago

Hugin produces exr files from image stacks.

buildbot3y ago

Sure, there’s not a photoshop button, but does github count https://github.com/timothybrooks/hdr-plus

It’s just an algorithm.

illiac7863y ago

> iPhone HDR produces an HDR image file

What file format is this? iPhone produces tone mapped HEIC, yes, but that’s not HDR as you pointed out.

Or do you mean HDR video?

astrangeOP3y ago

No, the HEIC has a proprietary attachment with the HDR data as well. You can see the iPhone display adapting when you view it in Photos.

_aavaa_3y ago

Do you have any info on how that attachment is stored/accesssed?

1 more reply

aoeusnth13y ago

Capture One creates .dng files, which are HDR raw equivalents when combining hdr from bracketed RAWs.

pizza3y ago

How about JPEG XL?

j / k navigate · click thread line to collapse

0 pointsastrange3y ago0 comments

There is no consumer software that can do what the iPhone does with its sensors.

iPhone HDR produces an HDR image file. Consumer HDR apps do the opposite - they take an HDR raw and tone map an sRGB JPEG out of it.

The only portable format that really supports HDR images is EXR, so if you're not generating that you're not getting it.

(I don't think there's anything that can do deep fusion either, though obviously you need it a lot less.)

0 comments

_aavaa_3y ago

I don't think that's true. Capture One introduced HDR merging in one of their recent releases [0].

[0]: https://support.captureone.com/hc/en-us/articles/44100147302...

astrangeOP3y ago

I mean, sure, producing another raw is one way to do it, but I wouldn't really call that an image format.

_aavaa_3y ago

I have no idea why you wouldn’t call it an imagine format.

But either way that’s changing the goal posts. Here is a consumer software doing what that iPhone does.

If that’s not to your liking, there is other software which produces 32bit float tiff images, those will support an even higher dynamic without the pain of EXR.

buildbot3y ago

1 more reply

sorenjan3y ago

Hugin produces exr files from image stacks.

buildbot3y ago

Sure, there’s not a photoshop button, but does github count https://github.com/timothybrooks/hdr-plus

It’s just an algorithm.

illiac7863y ago

> iPhone HDR produces an HDR image file

What file format is this? iPhone produces tone mapped HEIC, yes, but that’s not HDR as you pointed out.

Or do you mean HDR video?

astrangeOP3y ago

No, the HEIC has a proprietary attachment with the HDR data as well. You can see the iPhone display adapting when you view it in Photos.

_aavaa_3y ago

Do you have any info on how that attachment is stored/accesssed?

1 more reply

aoeusnth13y ago

Capture One creates .dng files, which are HDR raw equivalents when combining hdr from bracketed RAWs.

pizza3y ago

How about JPEG XL?

j / k navigate · click thread line to collapse