What is the effect of turning off the lens correction function on the image
If the lens correction function is turned off, the image may be affected as follows: 1. ** Chromatic aberrations **: Chromatic aberrations caused by refraction when light passes through the lens cannot be corrected. When shooting in a high-contrast environment or with a large aperture, it was easy to have purple edges, which meant that the edges of the image might produce purple, blue, and green edges. 2. ** Distortion **: The lens may cause barrel distortion or pillow distortion in the image. When shooting scenes that require straight lines such as buildings, the high-rise buildings in the image may appear to be crooked, and this distortion will not be corrected. 3. ** Vigor **: Whether it's a wide-angle lens (due to geometric optical factors, such as the hood or the light at the edge of the lens being blocked) or a telephoto lens (due to the long focal length, less light enters the small angle of the LCD lens), the vigour produced by the lens will not be corrected, causing the corners of the image to be darker than the center. 4. ** In terms of resolution **: The resolution reduction caused by the refraction phenomenon and the low-pass filter will not be corrected. For example, when shooting with a small aperture, the loss of details caused by light refraction cannot be improved, and the resolution reduction caused by the low-pass filter cannot be corrected. 5. ** Aberration **: The aberrations produced by the lens, such as the reduction of sharpness, cannot be corrected by the lens correction function. The overall sharpness of the image may not reach the effect when the correction function is turned on. Read more exciting novels for free
Distortion correction of fish-eye lens
Fish-eye lens distortion correction aims to reduce or eliminate the image distortion effect caused by fish-eye lenses. When correcting the distortion of the fisheye lens, the core was to solve a "good" remap matrix, which rearranged some of the original image's pixel-points (or intervening points) and "pieced" them into a rectangular image."Good" was linked to the final requirement, and different tasks often used different correction/distortion solutions. For example, in the smart security industry, whether it was a monocular camera or a monocular camera, the images captured would have distortions, which was the same as the distortion correction principle of a fisheye camera. For monocular cameras, in order to obtain the corresponding relationship between the camera's coordinate system and the three-dimensional world coordinate system, the barrel distortion and pillow distortion of the camera needed to be corrected. For binocular cameras, in order to do epipolar line alignment and realize depth estimation, the output of the two cameras needed to be transformed into the same coordinate system. Teacher Zhang Zhengyou's chessboard correction method estimated the internal and external parameters and distortion coefficient of the camera through the position coordinates of the marker, and then calculated the remap matrix. This method had a good correction effect for monocular and binocular cameras. In terms of practical operations, fisheye correction can also be performed using python language (only relying on the opencv-python package and numpy package), and fisheye distortion correction can also be performed from code examples such as PILimport Image. In addition, the distortion correction function based on digital image processing was also applied to the fisheye lens correction. This solution required rearranging the arrangement of the elements, but for the ultra-wide system where the edge image quality itself was a big problem, it might lead to the image quality of the most edge area being worse. Some equipment would use the image field redundant design and the sensor to perform the redundant matching of the elements to reduce the side effects of the digital correction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Canon lens digital correction data
Canon lens 'digital correction data included lens correction parameters such as distortion, color difference, halo, and so on. This data could help the photographer better deal with the relevant problems in the image to improve the quality of the image. Not every Canon lens had aberrations, so it was not necessary to turn on the aberrations correction every time. It was only necessary to correct the photos with obvious aberrations or in specific scenes. Different shooting scenes may require different correction parameters. The reasonable use of lens correction data can make the picture more in line with the photographer's intention. For example, when shooting landscape, portrait, and macro, aberrations correction can improve the quality of the photo. For landscape photography, turning on aberrations correction can improve the depth of field and color reproduction ability. In addition, the lens correction data could help reduce the color difference problem. For example, the application of Canon 1dx lens correction data could improve the overall image quality, allowing the photographer to obtain a more delicate and clear picture, and enhance the artistic sense and appreciation of the picture. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The effect and function of turning red
The red color had many effects and effects. If Huahong referred to the dry flower buds or newly bloomed flowers of the rose, it had the effect of regulating qi and relieving depression, and could be used to treat a variety of diseases. To be specific, it had a significant anti-oxidization effect, which could eliminate free radical in the body to delay aging; it had an anti-inflammatory effect, and had an inhibition effect on certain bacteria and viruses; it could promote blood circulation and regulate menstruation, and had a good treatment effect on symptoms such as menstrual cramps and amyosis. It might also have a resistance effect on certain cancer cells. Moreover, the fragrance in it could help alleviate emotional problems, be beneficial to the health of the heart and blood vessels, and also have a sobering effect on drunk people. If Hua Hong referred to Camphorus Camphorus (fruit), no information about its special effects and effects could be found. If Huahong was referring to the fruit of Westport Huahong, there was no special information about its effects and effects. If the red color was orange (the immature or near-mature dry outer peel of the rutaceae plant Huazhou pomelo), from the perspective of traditional Chinese medicine, it had the effects of dispelling cold, nourishing dryness, relieving cough, strengthening the spleen, digesting food, and eliminating diseases. The novel "Smelling the Jasmine Fragrance Again" is equally exciting. Everyone is welcome to click and read it!
Image quality of a single-lens reflex telephoto lens
Different single-lens reflex telephoto lenses had their own characteristics. For example, 85mm f1.2 was easy to run out of focus when the aperture was fully open and the purple edge was a little serious, but it could present beautiful pictures when shooting portraits or still lives;70 - 200mm f2.8 was one of Canon's big three yuan, with a wide focal range and no obvious shortcomings in image quality;100 - 400mm f4, in addition to being heavy and not having a large aperture, had sharp image quality; 50mm f1.8 "small spittoon" had average image quality, but it was cheap; The 24 - 70mm f2.8 Canon lens was more versatile, but the aperture was not large enough. The RF100 - 400mm F5.6 - 8IS USM lens was light and sharp. The Canon EF50mm F1.8II had a F1.8 large aperture circle focal lens, which made the background blurred and beautiful. The Canon EF40mm F2.8ATM had advantages in workmanship, overall quality, and performance, and the picture quality was excellent. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How is the effect of the external lens
The external lens could improve the shooting effect. For example, it had a significant effect in solving the limitations of the mobile phone's own lens. The mobile phone's own lens had limitations in focal length, aperture, and other aspects, while the external lens could meet the needs of a variety of scenes through different lens combinations. For example, the wide-angle lens could provide an ultra-wide-angle field of view, suitable for travel photography to record life; The telephoto lens could solve the problem of the image quality being damaged when the phone zoomed in. For example, some external range-increasing lenses could achieve object distance zooming and increase the magnification while maintaining good image quality, and the effect was better when used to shoot portraits and plants. The macro lens could make the objects shot at close range very clear. It could be used to view the small world around them, such as flowers, grass, fingerprints, jewelry, logo, and other small details. It could also solve the problem of the phone macro camera not being powerful enough, so that the background of the photos taken would be blurred. In short, the external lens could improve the professionalism and creativity of the shooting, greatly improving the user's shooting experience. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to use the error correction function
[Introduction] The error-correcting function of the Author's Assistant usually referred to a tool that helped writers check and correct spellings, grammar, and punctuation errors in their texts. Currently, the Author's Assistant had two main types of error correction abilities: System error correction (The system supports checking for typos and blocked words in the content, and automatically/manually triggers the display according to the user's needs) Spellcheck: This function can identify and point out the misspellings in the content. It would give a hint of an error and provide suggestions for possible correct spellings. Reader's correction (The content errors found by the readers during the reading process can be marked, and the feedback will be corrected according to the number of feedback readers set in the writing settings) According to the reader's actual feedback during the reading process, it could point out the errors in the content and provide possible correct writing suggestions. [How to use] Automatic error correction: In the writing settings on the upper right corner, it can be adjusted to automatic error correction, and problems can be automatically marked during the writing process. Manual error correction: The user needs to trigger it himself. In the function area on the right side of the writing page,"Correct", and at the bottom of the writing page,"click to correct", the error correction page will be displayed. In the error correction page, the error correction tool would mark the errors found and provide suggested correction solutions. You can view the list of errors, click on each error to see the specific suggestions, and choose to accept or reject the fix. It should be noted that although the error correction function could provide some help, it could not completely replace manual editing and proofreading. The final quality of the text still needed to be reviewed and corrected by the author himself.
A phone app with a fish-eye lens effect
There were two mobile phone applications that had a fisheye lens effect. One was Fisheye Cameras.(English name: Fisheye Plus Pro). It allowed the iPhone to have a digital simulation of a 170-degree wide-angle and an amazing fisheye lens. It also had a real-time fisheye viewfinder, simulated film replacement, lens, and ring flash. It supported five lenses, seven color ring flashes, and 22 effects. It gave a deeper three-dimensional sense and presented a completely different field of view. However, before using it, one had to go to the App Store to review it to fully unlock it. It was easy to flash back when using it. Especially when choosing the mode, color, and filter, the photos imported from the album couldn't be saved directly. Only the photos taken by the camera could be saved with one click. The other was the Fisheye lens app. The user could change the lens they liked during the shooting process. It was simple to operate. With just one click, they could take a funny photo with a big eye effect. It was powerful and had a delay function. It was very convenient to cut, add text or filter when editing photos. There was also a rich material library with many filter effects. When shooting, you could choose beauty effects. The modes were diverse. You could change the lens according to different scenes and needs. You could also adjust the photo parameters online at any time. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The function of the small stand of the telephoto lens
The small stand for the telephoto lens was mainly used to support the telephoto lens. Due to the large weight of the telephoto lens, if there was no support, it was easy to cause the lens to be damaged or fall. Moreover, only the telephoto lens mounting plate could only be fixed at the lens mount. Long-term use would damage the lens mount and reduce its service life. The telephoto lens small stand could avoid these problems. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The function of the phone's peephole lens
Take the cat eye lens in the OOppo Reno7 series as an example. It was the imx709 sensor jointly developed with sony, and it was equipped with the self-developed rgbcw technology, which could bring a better and more amazing shooting experience and picture quality. Its main functions included helping users shoot better pictures in dark environments and clear and bright pictures in backlit environments. The front camera supported automatic angle switching. When there was only one person in the picture, the front camera would shoot from a normal angle. Once another person entered the picture, it would automatically switch to wide-angle mode. The success rate was very high, and it was very practical. It also had a wider range when shooting videos. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Why do readers treat Chapter 799, "Correction.", as a real turning point for Correction?
Chapter 799, "Correction.", is the clearest early answer because it turns Correction's situation into a concrete plot event. It opens with NOTE: I made an error in the headcount of deaths, there have been... and closes on “Well, that settles it, we’ll deal with the weaker Tier 7 zombies....