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The limits of "computational photography"

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Re: The limits of "computational photography"

#91
post #89

Is there a way to disable this extra processing?

You can go around some of the extra processing by using other camera apps, for example "Open Camera". It can even shoot RAW photos, so that the least amount of processing is applied to the image. Unfortunately, you can't disable all of the processing, because some of it happen on the hardware, or in the camera's kernel module.

https://opencamera.org.uk/

Re: The limits of "computational photography"

#92
post #46

Earlier quoted context omitted.

They already are. However, most photographers do not appreciate this type of distortion being applied to their images. At a glance, my samsung note 22 ultra takes better picture than my nikon d7500. At a glance. However, as soon as you want to actually DO anything to it, like, view it in any real detail, or on anything but a tiny screen, reality returns.. While the phone is absolutely fantastic for a quick snapshot,…

Similarly sometimes I just want to apply whatever ai magic elixir my phone does to the raw image from my DSLR. Messing around in lightroom etc is just not worth it for hundreds of shots I take per day sometimes.

So true. Not only that, but pulling out my phone and quickly snapping a shot is often better than quickly pulling out my non-phone cameras - especially in challenging lighting conditions.

I absolutely can get better shots with my non-phone cameras, but they take more work.

Re: The limits of "computational photography"

#93

A very long article but I’m slightly confused. Is he using proraw? Can you not get unprocessed images from proraw? I’m not sure what the pipeline looks but I thought this type of situation was where pro raw was supposed to be used?

Afaik proraw has the same computational reconstruction, but none of the baked-in contrast, lighting, or color tweaks.

This gives you a clean low-noise image with editing flexibility but it does have the flaws of deconvolution and stacking and AI denoising.

Actual raw from a cell phone is insanely noisy and hideously soft from diffraction in the best of cases.

Re: The limits of "computational photography"

#94

The smartphone cameras have improved a lot in the recent years, but they cannot compete or match a full frame sensor provided the limitations. The size of the sensor and the optics play a major role in the final image quality and one can only do so much with the computational photography or whatever method. Especially the iPhone photography and videography is always overrated by the fanbois and some of the "professio…

> Especially the iPhone photography and videography is always overrated by the fanbois

I love my Nikon but for video I need a tripod to eliminate camera shake. My iPhone gives me stable images every time.

Re: The limits of "computational photography"

#95

I would like to see computational photography applied to raw images from DSLRs and MILCs with APS-C and larger sensors. Perhaps Canon, Nikon, Sony, and Fujifilm could have built-in options in their cameras for ‘social media mode’, with a modicum of noise reduction (honestly unnecessary at ISOs lower than about 1600 for modern cameras), but drastically improved HDR and white balance. Many of these cameras are able to…

I'm not exactly sure what you're asking for here. In my experience (and as seen in the article) the image processing in most digital cameras will already blow an iPhone out of the water. As far as I know, iPhone and Android aren't doing anything that isn't already done by digital cameras. They ramp up the settings on things like noise reduction and sharpness to balance out their tiny sensors, but it's more or less th…

Yep. I’ve got an iPhone 13 Pro. Sometimes it absolutely mutates images to the point they are unusable.

Bought a Nikon z50 because this was annoying me. Shooting JPEGs and it does a vastly better job and it will still go in my pocket with the 28mm f/2.8 or the 16-50 kit lens. The iPhone is embarrassingly bad in comparison.

Re: The limits of "computational photography"

#96

Haven’t felt like the camera on my iPhone 13 is significantly better than the one on my iPhone 7 at all in terms of basic quality. My shots look about the same. As someone who upgrades every several years I’ve been wondering how people who upgrade every year and rave about the camera being better are even seeing at this point. (Stills only I’m talking about)

I'm noticing the same, looking at GSMArena's comparison shots. We opted for an iPhone 11 back then, and out of curiosity, I keep an eye out for camera improvements, and I don't see that too much is happening. Comparing the low-light shots of the 11 and the 14 pro max, there is some extra detail, but the post-processing is also noticeably heavier.

Re: The limits of "computational photography"

#97
post #57
post #35

Earlier quoted context omitted.

I think you’re missing what makes iPhone photos look so good; they do much more than just ramping up the sliders on sharpness. When you take sunlit panoramas for instance, the iPhone will auto bracket and perform hdr treatment, it’s fantastic : you can see both the ground and the blue sky and the clouds. You can’t do that easily with a dslr, certainly not like a phone is doing right now, which is integrating the last…

> You can’t do that easily with a dslr, certainly not like a phone is doing right now, which is integrating the last x frames and modulating the digital shutter to capture multiple exposures. Standalone cameras have been doing this for at least a decade. The same is true for nighttime exposures. That's not to say that the iPhone doesn't do it better, maybe it does, it certainly can throw more processing power at it.…

If you're talking about auto-bracketing (AB), yes. But phones are doing more of an AB+. Are stand alone cameras aligning all the pictures in camera? Are they constantly reading the sensor so when you hit the button it takes the last series of shots, aligns them, and merges them?

I've been using AB for 20ish years, but it has never been as automatic as on a phone. It could certainly be that I haven't bought the right stand alone camera though.

Re: The limits of "computational photography"

#98
post #46

Earlier quoted context omitted.

They already are. However, most photographers do not appreciate this type of distortion being applied to their images. At a glance, my samsung note 22 ultra takes better picture than my nikon d7500. At a glance. However, as soon as you want to actually DO anything to it, like, view it in any real detail, or on anything but a tiny screen, reality returns.. While the phone is absolutely fantastic for a quick snapshot,…

Similarly sometimes I just want to apply whatever ai magic elixir my phone does to the raw image from my DSLR. Messing around in lightroom etc is just not worth it for hundreds of shots I take per day sometimes.

The trick is to not take 100s of shots per day, and failing that, filtered out 70-95% of what you shoot, before editing.

Re: The limits of "computational photography"

#99
post #87

Earlier quoted context omitted.

I also love my big heavy Canon DSLR. Can’t quite describe why it gives me so much joy, but I keep it around me at all times. I just love taking photos. The quality difference is also very obvious compared to my phone even though my camera is easily 8 years old.

I liked my not that big Nikons. Then I realised that I do not take as much photos as I could because I cannot be bothered to take camera and quite heavy 70-200/2.8 and 24-70/2.8 with me. And then I sold all my Nikon gear and instead of getting my dram D850 got myself Olympus. So happy I did this. Turns out you don't need FF and M4/3 has a gazzilion of excellent, small, and light-weight lenses available.

Nikon is finally releasing some lightweight Z primes. The 28mm and 40mm are great and make my z5 a very portable FF solution.

Re: The limits of "computational photography"

#100

I would like to see computational photography applied to raw images from DSLRs and MILCs with APS-C and larger sensors. Perhaps Canon, Nikon, Sony, and Fujifilm could have built-in options in their cameras for ‘social media mode’, with a modicum of noise reduction (honestly unnecessary at ISOs lower than about 1600 for modern cameras), but drastically improved HDR and white balance. Many of these cameras are able to…

Long ago I did some experiments with SuperResolution[1] which is a technique of aligning images to sub-pixel resolution and stacking them to increase the amount of information with the square root of the number of exposures.

I was using Hugin to align the images from my Nikon DSLR. I found that you can get to at least double the resolution in both dimensions fairly quickly, but you'll never get to "enhance" like in TV shows.

[1] https://en.wikipedia.org/wiki/Super-resolution_imaging

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