HDR in Xiaomi camera: what it means, how to apply
HDR mode is present in the “camera” on many models of Xiaomi phones, and not only. But not all of their owners have an idea of what it is and how to use it.
What is HDR?
In terms of photographic HDR terminology. high dynamic range. it is the difference between the lightest and darkest elements of the scene captured in the picture. How well the phone camera can display the lightest areas and draw the darkest shadows?
In normal mode, it is not easy for the camera to capture all these light nuances. Then HDD comes to the rescue. While the ultimate goal is to create better, deeper images, this mode should not be used for all photos in a row.
How HDR works?
When a photo is taken with the HDR option enabled, the camera at high speed takes several consecutive shots at different exposures instead of one. Then, at the software level, these images are combined into one photograph, in which the darkest and lightest areas of the captured scene are present.
Previously, when smartphones did not yet have this opportunity, it was necessary to take three photos (with a camera), transfer them to a PC, open them in Photoshop or a similar program in order to compile three images, highlighting the best parts of each of them and get the result the effect that is achieved when using HDR.
But smartphone makers have adapted the software HDR function to mobile cameras. And now, if you enable this mode in the phone, it will perform all the described actions automatically.
When is HDR?
There is a clear decision about when to use HDDs and when not. You need to proceed from what you want to achieve with photography. However, there are some general tips for when you can rely on HDR to get better images.
Lighting is the most important prerequisite for a good photo, but outdoors due to sunlight the contrast can be too high. This is where HDR comes in. He will help balance these inconsistencies. There will be fewer areas of bright white or black in the photo.
Low-light backlit scenes
If your photo is too dark or has very dark areas, you can use HDR to boost the overall brightness. However, special miracles are also not worth waiting for. If in a certain situation of light is present, the HDD will NOT be able to create it, but since this mode is based on the algorithm of shooting the brightest and darkest areas of the image and further consolidation. This method can help improve the picture significantly.
When not to use HDR?
Taking pictures of people or objects in motion
Since the camera takes three photos when HDR is turned on, if something moves, the final image may look blurry. For the same reason, when using HDD, photos take a little longer than usual.
Therefore, advice: if you want to apply high dynamic range, try to photograph stationary objects.
High contrast scenes
Some photos look better when you use contrast between light and dark areas. HDR will reduce this contrast, so the effect will be less pronounced.
Scenes in vibrant colors
In seemingly lifeless colors, HDR can certainly bring some brightness. But if the color scheme is too bright, this option will add extra shine. Here it is important NOT to overdo it or make the photo too oversaturated in terms of color.
How to tell if your phone has HDR?
Most modern phone models have HDR. This function is located in the camera settings, and in order to use it, you must first enable it. Sometimes this means that you will have to configure the phone camera to work in manual mode, not in automatic mode.
If your smartphone has HDR, the best option. is to download any of the specialized applications from Google Play and start using it. Google Camera HDR is an example.
How Google Camera HDR App Can Improve Photo Quality on a Budget Xiaomi Phone
The Redmi Note 3, launched in 2016, turned out to be one of the first Xiaomi models with a low-quality camera. The photos taken with this smartphone were quite mediocre. There are other phones with problematic cameras in Xiaomi. these are, for example, the Redmi 3S and Mi Max models. Against the background of the same OnePlus 3, the shortcomings were very noticeable.
The Chinese manufacturer Xiaomi decided to quickly gain popularity in the global market, so at first they did not put the quality of the camera among the priorities. The photos taken with the Redmi Note 4, Redmi 4 and Mi Max 2 did not attract attention, despite the fact that the camera specifications were decent. For example, the Redmi Note 4 has a 1/3-inch Sony IMX258 13-megapixel sensor, an f / 2.0 lens, and a 1.1 micron pixel size. The same sensor is found in the LG G6, but this model has an excellent f / 1.8 lens, and no less excellent sensitivity. ISP (powered by Hexagon DSP Snapdragon 821) and optical image stabilization. The difference between the image quality of Redmi Note 4 and G6 is too big because Redmi lacks image processing.
Photos on Redmi Note 4 are too soft even in daylight, details are blurry, resulting in an oil painting effect. In low light conditions, the Redmi Note 4’s camera does NOT cope with its tasks at all. There is too much noise in the pictures, the photos are very dark and not detailed.
Xiaomi recommends using HHT (Hand Held Twilight) mode in low light. It gives the best results because it employs the method of blending images. Still, the photos still turn out to be bad, even if the indoor lighting is moderate.
Google Camera HDR Port
This is where Google Camera comes to the rescue, complete with Google HDR technology.It is based on computational photography and image fusion, which allows you to compensate for hardware deficiencies (for example, the lack of OIS) and retain details with brightness noise, rather than remove this noise. Rooting is required on Xiaomi phones to use this version of the Google Camera app. But then it will not be necessary to fiddle with the HDR algorithm settings
MIUI Camera App vs Google Camera Port
To test the quality of photos, the following conditions were created: the Google Camera HDR Port application was installed on Redmi Note 3 running LineageOS 14.1. The stock MIUI camera app was installed on Redmi Note 4. This smartphone was running MIUI 8.5 Global ROM.
In terms of specifications, it was expected that the Redmi Note 4 would win because it had a better camera than the Redmi Note 3. Although the megapixel count was less, the small sensor had 16MP, hence the pixel size was larger (1.1 microns versus 1, 0 micron).
However, the Google Camera HDR app has completely changed the situation. The image quality of the Redmi Note 3 has improved significantly even at the default settings. In daylight, the sharpness is increased, and the detail is also slightly better. With HDR, colors are great. But the price to be paid for improving image quality was capture and processing speed. It takes more time to capture photos in the Google Camera app compared to the standard MIUI camera. Everything is done instantly there. There is also a significant processing delay: you need to wait 5-10 seconds until the processing of images starts.
The camera quality of the Redmi Note 4 is equivalent or even worse than the Redmi Note 3 with Google Camera HDR support. In daylight, the Redmi Note 4 has many of the same problems that have been inherent in other budget Xiaomi devices in the past. The main problem was poor dynamic range. This means it is difficult to take a photo and get a quality sky. In fact, in the daylight should leave HDD always included because Annex MIUI camera can not automatically switch to the HDR. Detailing is also poor, the quality is NOT what you would expect from a 13MP camera.
In low light, the Redmi Note 4 can be expected to win by a significant margin, as this camera has a larger pixel size. Redmi Note 3 with stock MIUI camera app in low light produces below average image quality. It can be improved a little with the HHT mode. But Google Camera HDR reveals its full potential here. !
On Redmi Note 4, color detail is very poor and Color is not saturated. This is compounded by the lack of sufficient contrast in the photographs. But on Redmi Note 3, which has HDR. Everything is different. In low light conditions, color detail is excellent. In addition, the dynamic range is again better in Redmi Note 3. In Redmi Note 4, of course, not everything is so bad. It has its advantages. it has better low light clarity and can take photos faster.
As a result, the following can be said. The Redmi Note 4 has the best camera hardware, but on the Redmi Note 3, due to the HDR in the Google Camera app, photos are as good or even better than on the Redmi Note 4. The benefits of Google Camera with HDD are obvious. For this reason, Xiaomi budget smartphone owners should consider installing and using this app if they want to truly unleash the potential of their smartphone’s camera.
How it worksWhat is HDR and how it can help make your photos beautiful
Instruction from a few simple tips
- Artem Luchko. 11 February 2014
Owners of the latest smartphones have probably seen that they have an HDR (High Dynamic Range) photo app. experienced users know what HDR is, but not everyone understands how and in what cases this function is best used. Under the heading “Instructions” we will try to clear up some confusion and show how to maximize the use of HDR capture on a mobile phone.
As you know, the human eye can see a much higher dynamic range of a scene than any camera, let alone a cell phone camera. We can equally well distinguish small details of a dark building against the background of a bright sky and, for example, an airplane flying high above it. But we all know what happens if you take a photo of a building with your phone: it turns out to be too dark with very poorly distinguishable details.
Photo with exposure across the sky
Of course, we could try to eliminate this problem by setting the exposure on the building itself, highlighting the area with it on the screen. With this approach, the décor of the building is visible well, but the sky in the photo has turned into an overexposed, blurred white spot.
Photos from the exposition of the building
Our goal. combine the best features of the two photographs to create an equal image in which both the building and the clouds look great. This is exactly what HDR technology offers. Photos taken with HDR are essentially multiple combined shots taken at different exposures.
The default iPhone application for taking photos has built-in HDR functionality. You can enable HDR by clicking on the option button in the “camera”. When HDR is on, iPhone will automatically take HDR photos. Please note that this takes longer than normal shooting.
However, the built-in iPhone application gives a rather “weak” result, and you will be able to take much better pictures using the Special Programs.
Photo taken with Pro HDR on iPhone 5 photo taken with default app on iPhone 5
One of the most popular and convenient HDR photo apps is Pro HDR (for iOS, RUB 66; for Android, RUB 61.75). However, there are also free versions with limited functionality.
The Pro HDR app offers two modes: automatic and manual. If you choose Auto, the application will analyze the scene, take a frame with a dark exposure (with more detailed highlights, but less detail in the shadows) and a light exposure (with more detailed areas in the shadows, but little detail in bright areas) and combine the two images.
Some photos may not look natural enough. To add realism to your shots, use the five sliders in the simple and intuitive settings panel. They allow you to adjust brightness, contrast, saturation, warmth, and hue. Automatic mode is fine for most situations; manual mode is only necessary when shooting the most contrasting scenes.
Settings panel interface in Pro HDR
Please note that HDR photos do not always look better than those taken in standard mode. Try to save both HDR and “normal” shots in order to then choose the most successful of them.
Using HDR mode is inappropriate when shooting in motion. Due to the fact that HDR combines multiple exposures of the same scene; and if these very scenes change, in the end you will get the most unpredictable result. Try to shoot with something stable or using a tripod.
What is HDR 10 in a smartphone: features of this standard
HDR 10. a way to get a more colorful picture on your smartphone screen. To use the technology, the device must work with an increased dynamic range of the image. Perhaps this is only on OLED matrices, since a deep black tint can be obtained exclusively on them. The maximum brightness of the smartphone should be at least 1000 nits, and the chromaticity at least 10 bits. However, monitors and mobile devices should not be confused. HDR 10 has different requirements on different platforms.
What the user gets
It is important to keep in mind that the standard needs visual content. But you can even notice the difference on the desktop. Improves color reproduction and reduces glare from the sun.
On devices with a small diagonal, the effect of the technology is not so impressive. Most modern flagships work with Multiple HDR standards at once. However, the most relevant is still HDR 10.
HDR 10 operation
If, for example, you take an image of a person who is on a light background, then a normal screen will show an overly exposed image and will lose all details. But a device with HDR 10 technology will produce a clear and detailed picture.
However, there are several complaints. The first is that the smartphone cannot be viewed from the same angle, which means that the lighting will also change. The second implies the presence of automatic brightness control on the smartphone. But manufacturers claim that all this is taken into account by artificial intelligence, and the picture will always please the eye. It should be said that the technology consumes a lot of battery power, but in fact, any person puts his phone on charge every evening.
Despite the fact that this technology is already widely used in TVs, only a few manufacturers implement it in smartphones. These include LG, Samsung and Apple. The technology was first implemented by the Galaxy Note 7, but since the smartphone was a complete failure of Samsung and was withdrawn, the first device to work properly was the LG G6.
Last year’s iPhone X also received HDR 10. And thanks to its thin bezels, high Full HD resolution and high contrast, the display was considered the best on the market. This smartphone was the first device to really unleash the capabilities of this technology. LG later tried to replicate Apple’s success with its LG V30 smartphone. The device received a resolution of 18: 9 sides. The POLED matrix used in the smartphone makes the frames almost invisible. The display resolution was 2880 × 1440, which is why the device is able to display up to 148% coverage.
The technology has recently received a massive upgrade to HDR10. The main distinguishing feature is the support for Dynamic Tone Mapping. This means that the brightness of the smartphone may change depending on the lighting of the scene in the video. For example, if dark tones prevail in the cinema and only in some moments light appears, the technology will adjust in advance to the scene.
Now the standard is as close as possible to Dolby Vision, whose developers previously touted dynamic metadata as the most important difference from HDR 10.
But when the highest values for color and brightness are required, there are still competitors in Dolby Vision. It should be borne in mind that this technology is paid, while HDR10 remains an open standard. HDR10. 5th standard in a similar industry. It is on par with such giants as HDR 10 Dolby Vision, HLG and Advanced HDR.
What is HDR in a phone camera and why is it needed?
Pixel and Nexus smartphone cameras have never been great, but they have made a huge leap forward in the past four years and are now at the top of the charts. Why did it happen? Because Google has implemented a software-based photo post-processing engine called HDR. In this article, we will explain how it works and how to activate HDR on your smartphone, regardless of its brand.
What is HDR
To fully understand how HDR works, you’ll first have to deal with regular HDR.
The main problem with all smartphone cameras. small size of the matrix (or rather, photo cells) and, as a consequence, insufficient coverage of the dynamic range. To correct this drawback, an HDR (High-Dynamic Range) algorithm was developed, the principle of which is as follows: the camera takes a frame with a standard exposure level for a given scene, then takes an underexposed frame, in which only overexposed areas of the original image will be clearly visible, then it is performed an overexposed photo, in which only the darkened details of the original image are visible, and everything else is overexposed. Then the images are superimposed on each other and combined using Special algorithms, the quality of which depends on the manufacturer of the camera software. The result is a shot with good detailing both in the shadows and in lighter areas.
The disadvantages of HDR are obvious: a long shooting time leads to the fact that moving objects caught in the frame will double, and even a slight shaking will blur the picture.
What is HDR
Smart heads have come up with an algorithm devoid of HDR flaws. However, it has only a name in common with HDR.
HDR stands for High-Dynamic Range Low Noise. He gained his fame for a number of outstanding features: the algorithm is able to eliminate noise with virtually no loss of detail, higher color reproduction quality, which is extremely important in low light and at the edges of the frame, at the same time it greatly expands the dynamic range of photography. HDR, unlike standard HDR, Almost not afraid of smartphone shaking and movement in the frame.
The first smartphone with HDR support was the Nexus 5. Due to more than one better white balance and a small aperture (f2.4), the camera of this smartphone was considered no more than a strong middling. That all changed with the release of the Android 4.4.2 update. It was this that brought with it support for HDR mode and Amazing quality of night shots. Although they did NOT differ in high brightness across the entire field of the frame, thanks to HDR, they practically did NOT contain noise while preserving fine details and had excellent (for smartphones in 2013) color reproduction.
(Image in original quality)
The history of HDR creation
How did a company that has NEVER dealt with cameras create an algorithm that works wonders using conventional Nexus and Pixel cameras by flagship standards??
It all started in 2011, when Sebastian Thrun, CEO of Google X (now just X), was looking for a camera for Google Glass augmented reality glasses. The weight and size requirements were very strict. The size of the camera matrix had to be even smaller than in smartphones, which would have an extremely bad effect on the dynamic range and would lead to a lot of noise in the photo.
There was only one way out. try to improve the photo programmatically, using algorithms. This task was to be solved by Marc Levoy, a professor of computer science at Stanford University, an expert in the field of computational photography. He worked in software-based image capture and processing technology.
Mark formed a team known as Gcam to study the Image Fusion method, which combines a series of images into a single frame. Photos processed using this method turned out to be brighter and sharper, had a small amount of noise. In 2013, the technology debuted in Google Glass, and then, in the same year, renamed HDR, appeared in the Nexus 5.
(Image in original quality)
How HDR works
HDR. An extremely complex technology, which cannot be analyzed in detail within the framework of this article. Therefore, we will consider the general principle of operation, and not dwelling on the details.
After pressing the shutter button, the camera captures a series of underexposed (fast shutter speeds) frames (this is necessary to preserve the maximum amount of detail in the image). The number of frames depends on the complexity of the lighting conditions. The darker the scene or the more details in the shadow need to be illuminated, the more frames the smartphone takes.
When a series of shots has been taken, it is combined into one shot. A slow shutter speed comes in handy here, thanks to which every photo in the series looks very clear. Of the first three frames, the most acceptable in terms of both sharpness and detail is selected to use as a basis. Then the obtained images are divided into fragments and the system checks whether it is possible to combine adjacent fragments and how to do it. Having found unnecessary objects in one of the fragments, the algorithm removes this fragment and selects a similar one from another frame. The resulting images are processed using a special algorithm based on the method of successful exposures (it is mainly used in astrophotography to reduce image blur caused by the twinkling atmosphere of the Earth).
Next, a sophisticated noise reduction system comes into play, which includes both a simple method of averaging the color of pixels based on several images, and a system for predicting the appearance of noise. The algorithm works very gently at the edges of key transitions to minimize loss of detail, even at the cost of a small amount of noise in such places. But in areas with a uniform texture, “noise reduction” evens out the picture up to an almost perfectly uniform tone while maintaining the transition of shades.
(Image in original quality)
But what about the expansion of the dynamic range? As we already know, using a fast shutter speed saves us from overexposed areas. It remains only to remove noise in the dark area using the previously described method.
At the final stage, post-processing of the resulting image is performed: the algorithm minimizes vignetting caused by light hitting the matrix at an oblique angle, corrects chromatic aberration by replacing pixels in high-contrast edges with neighboring ones, increases the saturation of greens, blues and magenta shades are shifted towards cyan, sharpens ) and performs a number of other steps to improve the quality of the photo.
On the left is a photo from a stock Samsung camera in HDR, and the case is a photo taken in Gcam in HDR. It can be seen that the algorithm sacrificed sky detail to draw objects on the ground.
(Image in original quality)
(Image in original quality)
HDR update on Google Pixel
In Google Pixel, the algorithm has undergone significant changes. Now the smartphone starts shooting immediately after starting the camera and, depending on the degree of illumination, takes from 15 to 30 frames per second. This technology is called ZSL (Zero Shutting Lag) and was invented to take snapshots. But Pixel uses it to work HDR: when you press the shutter button, the smartphone selects from 2 to 10 frames from the ZSL buffer (depending on lighting conditions and the presence of moving objects). Then the best one is selected from the first two or three frames, and the rest, as in the previous version of the algorithm, are layered on the main one.
Along with this, a division into two modes appeared: HDR Auto and HDR. The latter takes as many shots as possible to create the final photo. It turns out to be more juicy and bright.
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What is HDR in a phone camera? Almost every owner of a smartphone with a similar function has probably asked a similar question. Depending on specifications and other factors, some users may NOT be able to tell the difference between the photos taken when the HDR function in the phone’s camera was turned on and compared to regular photos. However, there are still differences and they are significant.
What is HDR in a phone camera?
If you do not delve into the technical difficulties, then this is a special format for processing photos at the time of saving images. NOT taking the complexities of programming as a basis, this function allows you to take pictures with more vivid and contrast. This happens due to the expansion of the brightness range, which is not always visible with the naked eye or using ordinary photographs.
In addition, the enabled HDR function in the phone camera affects the file size, due to the peculiarities of saving the received images. This aspect is also present on other devices, for example, cameras.
It stands for High Dynamic Range. If translated from English, then it will mean high dynamic range. However, the full name of this technology did not really catch on, in contrast to the abbreviated version. In general, the name reflects the essence of the technology. it allows you to increase the range of brightness and color depth.
Is HDR so useful
Given the current trends in new profit ploy, mobile device companies are ready to seize any opportunity to increase the value, prestige and competitive advantage of their products. However, the technology has quite taken root and is present in the cameras of many mobile phones, especially for expensive models and flagships, starting with the Samsung Galaxy S4 and the iPhone.
Pros and cons of this feature
Trying to understand what HDR is in a phone camera, you will surely come across the fact that the pictures taken with the introduction of this technology begin to have a very large volume, that is, take up a lot of space in the memory of your smartphone. For devices where there is a large amount of storage space, this feature does NOT create any breakdown. In this case, we are talking about gadgets, the memory of which is equal, for example, 128GB or even more, due to flash drives. But in the case of smartphones with small storage, the HDR function will lead to fast overflow and lack of space. Of course, this is not critical, but constant notifications about the lack of memory can annoy and interfere with users while working.
Where is applied
Having answered the question of what is HDR in a phone camera, many will probably ask the following question: why is it needed? In addition to brighter pictures, this technology is used in many mobile applications with filters for photos. Various special effects that are associated with changes in shadows, contrast, anti-aliasing or blur can also include the use of this function.
However, it is very important to have a good high-resolution display, as not all screens can fully reproduce the picture that results from using HDR. It is possible that some budget smartphones can take pictures using high dynamic range, but the photo will not differ much from the usual.
HDR function in the phone camera. This is not only a way to advertise additional features of a smartphone, but also quite an interesting technology that will allow you to experiment from a picture.
There are a large number of photographs on the Internet, mainly of nature and various landscapes, which are made using high dynamic range. They are very saturated with bright colors and reproduce a wide range of different colors that fall into the lens.
HDR technology can be used Not only in mobile devices, but also in professional cameras, which gives photographers more creative tools. In addition, there are TVs that support this function, they make the picture more lively and vivid.
Thus, the answer was given what is HDR in a phone camera, as well as what is the essence of this technology, regardless of the devices on which it is applied.
What to do if the race of megapixels in smartphones has come to a standstill, the thin body does not allow increasing the matrix, but you want to get the best photo quality? It is possible to improve the optics by using high quality glass lenses, but it is expensive and difficult. It is possible to optimize the hardware and software of the camera, but this requires the presence of virtuoso engineers and programmers on the staff of developers. Or you can use the power of modern hardware (fortunately, there are enough of them now) and just add new algorithms for frame processing. One of these options, found almost everywhere in smartphones, is HDR.
What is HDR mode in a smartphone. our article will help you figure it out. We will also try to find out in which situations this option will be useful, and in which only it will spoil the frame.
What is HDR mode
HDR mode (from English. High Dynamic Range. High dynamic range). This is a special method of taking a photo, in which the smartphone’s camera sequentially takes several frames with different shutter speeds and exposures, for their subsequent merging into one image. Autofocus of the module alternately concentrates on areas with different indicators of brightness, contrast, as well as distance from the lens.
Immediately after imprinting, the frames are subjected to software processing. They are superimposed on each other, and the system analyzes their quality, choosing the clearest fragments as a basis. Similar parts of the second frames are used only for sharpening, saturation, and noise reduction.
The specific algorithm for HDR operation depends on the features and the level of its implementation. The simplest (and least effective) example of organizing it. this is when the frames are simply superimposed on each other and “blurred” a little. In the most advanced options, fragments of each image are sequentially analyzed to identify the most successful.
What does HDR mode in the camera give
The main purpose of HDR in a smartphone camera. this is an increase in the detail of the picture and its clarity. For example, if, during normal shooting, objects of different colors are included in the frame, which are in different degrees distant from the photographer and have different levels of light (dark houses and blue skies are a very common situation). only some of them will be in focus. Other objects will appear fuzzy, blurry and NOT at all contrasting.
HDR mode allows you to focus on each of these areas in turn to get the best possible quality. Fusion of shots, in one of which the foreground was in focus, in the second. background, and on the third. small details of the environment, allows you to combine all the successful details in one photo.
Thus, when shooting stationary subjects with a tripod (or simply holding your smartphone firmly), HDR allows you to make shots clearer and more detailed. But this mode also has disadvantages.
Cons of HDR
- Moving objects cannot be taken. Although the camera takes a series of shots at millisecond intervals, the subject may move during this time. As a result. instead of a blurry photo of a car, a fuzzy strip will turn out, and a running man will become a blurred shadow.
- Will NOT work Get a bright frame. When shooting a series of frames at different shutter speeds and focus. The camera software in HDR mode “averages” the brightness values. If in single mode you can get a photo in which the main object will turn out to be saturated (albeit for the sake of the background), then in HDR the background will be better, but the center. worse.
- Slow down shooting. Even the fastest camera, which takes a frame in a split second, slows down when shooting in HDR. A second delay can play a significant role, and sometimes it is better to quickly take a series of 5-10 frames (this mode is also available almost everywhere) than to wait for one shot to be processed.
The abbreviation HDR from English stands for High Dynamic Range (high dynamic range). This is a special shooting mode that allows you to make your photos better, more colorful and more detailed.
Improving the quality of photos is achieved due to the fact that the camera takes not one, but several photos at once with different levels of brightness (exposure) at a time and instantly processes them by combining them into a single whole.
Sample photo on Xiaomi Mi5 in HDR
Unfortunately, it will take significantly longer to create multiple images and post-process them than taking a photo without HDR. Therefore, this mode will be useful only for shooting stationary objects or landscapes, and all moving elements are simply “blurred” or duplicated in the photo.
Also, an important detail is the software that deals with the processing of HDR photos.
In some cases, HDR photos are much worse than normal shooting. But technologies are developing rapidly and new firmware introduces many fixes, including in the processing of photos received from the smartphone’s camera.
You have to decide for yourself whether or not to use HDR, but it will not be superfluous to try and see the result.
So you have a smartphone and it has a camera, right? And you found such a thing as ZSD there and now you think what is it? I dug around on the internet and this is what I found. In short, guys, ZSD is a new trick that helps to make photos clearer and more high-quality, but the thing is that when you Fotkay, then you press the button, and it takes about a second or two for it to take a picture, you know that? Well, the ZSD option allows you to take photos without delay at all! That is, you pressed the button and bam the photo was made right away! Well? Seems like the desired function
Tax, on the second site I also found information in ZSD, by the way it stands for Zero Shutter Delay, that is, something like a zero shutter delay. Well, I’m reading here and that’s right, ZSD is a mode when shooting occurs simultaneously with a button press. Yeah, that’s what else I think is important, it says here that when using ZSD autofocus NO, that’s it guys! But yes, I agree, she is not needed here and the face is not needed, because she takes a picture right away, and at least a minute is needed for Focusing!
In the settings, I advise you to try ZSD, check so to speak how it works and if anything, then you can turn off the option:
Well, or here, look, there is also a ZSD here, but this is clearly a different smartphone:
Well, here’s another picture, so to speak in the subject, see:
All the guys, I think that the question is settled, I advise you to check the work of the ZSD function, maybe it will be better to take a picture this way, and maybe even faster! Good luck guys and bye everyone
What is HDR in a phone camera
If you have ever seen dynamic saturated photos with strong shadows, skies or fine details. These are all photos taken with HDR. Now, in any Xiaomi smartphone, the camera supports this mode. Now, dear readers, let’s take a closer look at what HDR is and how it works.
What is HDR in-camera?
HDR. a software algorithm used to process digital photography, the principle of which is to add dynamic changes to the photo. If you have a Xiaomi device and want to learn how to take high-quality and dynamic pictures, then you need to understand what HDR is in the camera of a Xiaomi phone.
So, when using HDR, a smartphone camera takes not one, but several pictures at once. However, each photo uses a different exposure. After that, the software algorithm combines the resulting images into one photo.
A photo taken with this method conveys light transitions much better, making them as similar as possible to what the human eye sees, and not the device’s camera. It is also worth noting that when shooting with this method, the phone takes more time to process the image. For example, the Xiaomi Mi A1 camera takes 2 seconds to process the result.
What is HDR shooting?
HDR technology is designed to improve the quality of your photos. However, this method of shooting is not always worth using, but only in certain situations.
So, first of all, HDR should be used when shooting landscapes, since in such photos it is very important to note the contrast between the earth and the sky. In HDR mode, the smartphone camera can easily handle this task, highlighting all the details in the sky, while NOT too dark the ground.
HDR is also highly recommended for portraits in bright sunlight. Everyone knows that lighting is one of the most fundamental aspects of photography. However, if a large amount of light falls on the face of the person being photographed, this can be a prerequisite for the appearance of unnecessary shadows, glare, and other things that will NOT have the best effect on the quality of the photo. Using HDR, you can easily adjust the amount of light on your face.
HDR mode in a smartphone what is it?
Do not forget that most Xiaomi smartphones, which have a photo in HDR mode, take two images at once, one with the HDR effect, the other without it. Thus, after shooting, you can compare both images and choose the best one.
The photo. it is an art in which it is always necessary to experiment to achieve the best result. Don’t be afraid to take pictures and use the “HDR photo mode”. Over time, you will learn to use it correctly and significantly improve the quality of your photos.
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What is HDR in a Xiaomi phone: how the abbreviation stands?
What is HDR in Xiaomi phone camera. a question of interest to users that they used such a mode. This is one of the algorithms developed for photo processing. Previously, it was present in advanced phones, now it is installed in everyone. The article provides information on what this mode is, how to use it and what you can get as a result.
What is HDR?
This photography mode helps you take pictures with contrasting contrast. The elaboration of details will not be lost. The functionality depends on the brand of the smartphone and the type of the SoC. In this case, the general operating mode is considered to be the same for all phones.
After starting the mode, the camera takes several photos, differing in shutter speed and exposure. After shooting, the pictures are combined with each other, as a result of which a single image becomes clear, contrasting and detailed.
How HDR stands for abbreviation?
This abbreviation will stand for High Dynamic Range. In Russian, this expression means High or Extended Dynamic Range. In fact, this is the ability of cameras to simultaneously transmit light and dark details into the captured image.
This range is able to determine how well the camera detects individual tones that lie between black and light areas. If in the process of shooting details, light elements merge, in such cases they say that the range is narrow.
How HDR works?
HDR what is it in Xiaomi phone? This is a special function that transforms technical details. This is a well-thought-out algorithm for photo processing after shooting. The presence of the function makes the hardware of the smartphone ideal and functional.
When taking pictures
During the operation of the mode, a serious load falls on the camera. Among the other features of the mode, the following should be highlighted:
- Before image processing, the hoof camera provides information about the general scene and the details placed in it;
- Auto focus quickly focuses on areas of the picture. This allows for clear images of near and far parts. At the same time, images of parts with different illumination levels are aligned;
- The faster the focus is triggered, the more information the phone will receive, and accordingly, the final result of the processing is better;
- If the smartphone has auto focus, the mode will not be supported.
Autofocus is not enough. It is important that it is fast, otherwise the quality of processing will be questionable.
In the process of filming video is required Make sure that the smartphone has settings to ensure a clear image. By carrying out this process, the camera gives the following positive factors:
- Adjust the amount of light to reach the camera matrix;
- Assembly allows you to efficiently handle light and dark areas;
- It is possible to use the software part of the smartphone;
- The completed videos are compiled and processed to obtain the optimal result;
- Allowed to use single-chip software system.
The functionality and mode of operation make the device popular among users. The video that is shot on the phone turns out to be rich and colorful, the natural colors are preserved.
When to use HDR mode?
It is recommended to use the described option for different modes. Excellent quality can be achieved when shooting landscape photography. The background will look good, the foreground will be shaded. Close objects from shadows will become more detailed. Among other options for using the mode, users note:
- Shooting a city or forest if you plan to insert a blue sky into the frame. Provides vivid contrast here.
- Pictures at resorts and during excursions. The tall building will be clearly visible, dark alleys are illuminated.
- Images with lots of fine details. If you want to take a photo with the study of cars on the street.
- Portrait shooting. When staged and ordinary shooting, if there is a need to fix a person and the objects behind him.
- When shooting the subject in the background merges with the background. By using the described mode, the photo automatically becomes better.
- Night photos. When the mode is activated, special settings are set with a long exposure, which avoids noise in the frame. Here, even a clear movement will NOT blur the photo.
If you use an extended range, you can take a burst of photos at a fast shutter speed. With fast auto focus, you will get a sharper photo. It will be an order of magnitude better than in the process of conventional photography.
Pros and cons of HDR
The advantages of using the mode include the creation of a detailed and clear image. If you capture a beautiful sunset, you can get dark buildings in the frame.
First, it will focus the sunset, then the houses and then the small details of the environment. Along with the positive aspects of using the regime, certain disadvantages should be highlighted:
- Decreases the brightness level of the image. Due to the multifaceted processing, this parameter is averaged;
- Motion blur. For the reason that the mode for processing takes sequential snapshots in order to get the desired result, the objects must be static. Abrupt rushing movements can lead to a lack of clarity;
- Reducing the speed of the photo execution technology. The device has to photograph objects and immediately processes them. This automatically slows down the speed of taking pictures, especially if there are many. here is 7 to 10.
Accepting the described functionality, it should be noted that this is an additional option, but not a solution to problems associated with taking a photo.
How to enable HDR in the app?
To start the mode on the phone and make it active, you must perform the following manipulations:
- The Camera application is launched on the smartphone for shooting.
- In the upper right corner, you should find the HDR inscription.
- After clicking on it, the attention will be presented with a list of switches for turning the function on and off.
The smartphone user independently decides in what situation to launch the mode of taking pictures, and when it is necessary.
The described technology is useful for users. She is able to save a photograph that initially cannot be of perfect quality. The function can be used to save time when processing an image. Dynamic Smartphone 4x is able to cope with the most difficult scenes in the image, made in adverse conditions. The introduction of this technology into note 5 smartphones pleases everyone who is used to taking high-quality photos on one smartphone at a time. At the same time, the cost range is available.