12 11 Color

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Heike Fallago

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Aug 5, 2024, 1:05:50 PM8/5/24
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Truecolor composite uses visible light bands red (B04), green (B03) and blue (B02) in the corresponding red, green and blue color channels, resulting in a natural colored result, that is a good representation of the Earth as humans would see it naturally.

False color imagery is displayed in a combination of standard near infra-red, red and green band. False color composite using near infrared, red and green bands is very popular. It is most commonly used to assess plant density and healht, as plants reflect near infrared and green light, while absorbing red. Since they reflect more near infrared than green, plant-covered land appears deep red. Denser plant growth is darker red. Cities and exposed ground are gray or tan, and water appears blue or black.


Short wave infrared (SWIR) bands 11 and 12 can help scientists estimate how much water is present in plants and soil, as water reflects SWIR wavelengths. Shortwave-infrared bands are also useful for distinguishing between cloud types (water clouds versus ice clouds), snow and ice, all of which appear white in visible light. Newly burned land reflects strongly in SWIR bands, making them valuable for mapping fire damage. Each rock type reflects shortwave infrared light differently, making it possible to map out geology by comparing reflected SWIR light. In this composite, B8A is reflected by vegetation and shown in the green channel, while the reflected red band, highlighting bare soil and built up areas, is shown in the blue channel.


The GoPro Hero 12 offers none of those things, but when I head out the door, I still grab my GoPro ahead of every other small camera I have. GoPro's new Hero 12 has been a good reminder why. It has everything that made the Hero camera great, but now it's better.


Side by side, the only visible difference between last year's Hero 11 Black (8/10, WIRED Recommends) and this year's Hero 12 Black is the blue number on the side and a bit of blue speckling on the outer skin. Otherwise, the body is the same, meaning that all your old accessories, lens filters, mods, and add-ons will work with the Hero 12.


That might make this camera a tough sell for some. That said, there are several new features in the Hero 12 that make it a welcome upgrade: longer run times (with less overheating), 10-bit Log video, timecode syncing, and a standard tripod mount.


The internet is rife with speculation that the GoPro Hero 12 is merely a firmware upgrade to the Hero 11. I have no insider information on that, and I don't think it matters. GoPro improved the Hero 11, and how they did doesn't really interest me. What interests me is that I have been shooting with Hero series cameras since the Hero 5 Black, and the Hero 12 Black is the first model that has never overheated.


I've been shooting with the Hero 12 this way for over a month now, and it has not overheated. Not once. Battery run time is significantly longer as well. Again, this was primarily noticeable to me when shooting in modes that really strain the camera, especially 4K 120p.


Some of that improved battery time might be the result of a feature being removed, namely GPS. I never used the GPS feature, and GoPro says it removed it because less than 1 percent of users used it. Predictably, that 1 percent is outraged. GoPro wouldn't give me any specifics, but I would not be surprised to see the GPS features added to a new version of the remote. This is the route that both DJI and Insta360 have taken.


There are several other new features in the Hero 12 that will be welcome to anyone who uses their GoPro in combination with other cameras. The big one is timecode sync. Timecode sync ensures that your GoPro footage can be accurately lined up with other GoPros or any external audio or camera shots when you bring them all together in editing software. Technically, timecode sync is available in the Hero 10 and 11 if you use the GoPro Labs firmware, but in my experience it doesn't work well. That's changed with the Hero 12, where it is formally supported and works. This probably isn't something most people need, but it's nice to have.


Another feature that pros will like is support for Log video in the form of PG-Log, which gets you 10-bit "raw" video for maximum dynamic range and the widest range of postproduction coloring and adjustments. There's also support for a new HDR video, in both 5.3K and 4K resolutions. It's a tone mapper, not actual HDR footage designed for an HDR display. Honestly, I can't tell the difference between HDR and normal most of the time. The main thing I noticed was the highlights aren't quite as crushed, and the sky tended to a more intense blue.


In addition to the existing stabilization features, GoPro has added a new stabilization feature called AutoBoost, which tries to avoid cropping to get the stabilization. When AutoBoost is turned on, the camera attempts to maintain the same stabilization performance but expand or contract the crop dynamically. This feature I did notice, but mainly when shooting side by side with the Hero 11. In practice, you might not see it, but it does produce smoother, better footage than the previous models.


If you've ever wished you could easily use your earbud mics with the GoPro, the Hero 12 fulfills those dreams with support for wireless headphones and microphones. That means you can mount the camera to the side of your BMW R1100GS touring bike and get the audio from the earbuds inside your helmet. Not only can you use the mics for audio, you can also use them to issue voice commands to control your Hero 12.


The final great new feature is a very small one. There is now a 1/4-20 tripod screw hole between the signature GoPro fin mount. This makes it easy to put your GoPro on a tripod without an accessory, but more importantly, it opens the door to some more clever third-party mounting systems. Above I mentioned that DJI and Insta360 both have very clever magnetic mounts. Now your GoPro can too. All you need is a small adapter. I like this one ($30), because I have a few Insta360 system mounts, but there's a DJI compatible version ($20).


It's a small thing, but using these cameras day in day out, this was really annoying. That said, this would be something GoPro could probably fix with a firmware update, so I don't consider it too much of an issue.


That depends on your use case, but in most cases yes. The Hero line has long been our favorite action camera, and I don't see that changing. GoPro's Hero cameras are among the very few cameras that have never let me down. They've never missed a shot (other than a dead battery, which happens to all cameras), never blown focus, never inexplicably failed. I've even considered getting my Hero 10 modified to use Cine lenses.


That said, there's no need to upgrade every time a new version of your favorite device comes out. If you've had overheating issues or really need GP-Log video or timecode sync, then update. On the other hand, if you're happy with your Hero 11 or Hero 10, stick with that.


One of the most impressive things about the GoPro Hero series of cameras is how durable and long-lasting they are. People in the GoPro Reddit regularly post questions about their Hero 4 cameras, which are still working. The Hero 4 was released almost a decade ago, and people are still making great images and videos with them. The Hero 12 is a worthy successor to the Hero 11. I have no doubt that, a decade from now, on some future version of Reddit, someone will be asking questions about their Hero 12.


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The experience of dermatological conditions such as psoriasis is different for people with skin of color (SoC) than for white individuals. The objective of this literature review was to understand challenges and unmet needs associated with access to care, diagnosis, and treatment of psoriasis among people with SoC in Canada and the United States. The review focused on studies published in the last 5 years. After screening 919 unique records, 26 studies were included. Importantly, lack of culturally competent care was identified as a key unmet need for psoriasis among people with SoC. In addition, cost of care and cultural views of psoriasis may influence decisions to seek care among people with SoC. Baseline patient characteristics in psoriasis studies and the prevalence/incidence of psoriasis vary across racial/ethnic groups, which may reflect differences in the rate and/or timing of diagnosis. The presentation of psoriasis differs across racial/ethnic groups, which may contribute to challenges in proper and timely diagnosis. Compared with white patients with psoriasis, individuals with SoC may be less familiar with and have different rates of treatment with biologic therapies for psoriasis, are more likely to be hospitalized for psoriasis, and their access to physicians may differ. Further, people with SoC are underrepresented in clinical trials of psoriasis therapies. Overall, the results of this literature review suggest that people with psoriasis and SoC face unique challenges in their disease experience. It is essential that clinicians and other stakeholders recognize and address these disparities to ensure equitable care.


Skin conditions such as psoriasis are experienced differently by people with skin of color (SoC) compared with white individuals. Although it is known that psoriasis can vary in how it appears between these groups, other factors that affect care for patients with SoC are not well understood. For this review, we focused on challenges associated with accessing healthcare, receiving a diagnosis, and receiving treatment for psoriasis among people with SoC. A search of the academic literature identified several such challenges for people with SoC in Canada and the United States. A major challenge for people with psoriasis and SoC is having access to care that is compatible with their cultural values and practices. The cost of healthcare and cultural views of psoriasis may influence whether individuals with SoC decide to seek care. People with SoC are more likely to be hospitalized for psoriasis, and their access to physicians may differ compared with white individuals. In addition, differences in how psoriasis appears across racial/ethnic groups may hinder diagnosis. Psoriasis treatments that patients with SoC receive may differ from those that white individuals receive, and people with SoC may be less likely to be properly represented in clinical trials evaluating psoriasis therapies. Taken together, the findings of our review indicate that people with psoriasis and SoC face unique challenges in how they receive medical care for their condition. It is essential that clinicians and other stakeholders in the healthcare system recognize these challenges and work to address them.

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