White balance of scanner
When performing the white balance of the scanner, the first thing to do was to clean the scanning glass inside the scanner main body, the tabletop of the scanner main body (the manuscript delivery tabletop), and confirm that there was no dust or garbage on the paper used for the white balance. It will take some time to perform the calibration. During this time, do not turn off the scanner's power, or there may be a problem that requires after-sales service personnel to solve. The paper used for the measurement should be properly kept to prevent it from being damaged, distorted or dirty. The measurement paper is a paper product and cannot be cleaned with liquid. The specific steps were as follows: 1. Start (scanner adjustment), display (scanner) menu, select (white balance adjustment). 2. After the relevant screen was displayed, he chose (All) and clicked (Execute). 3. Follow the instructions and insert the paper into the scanner. 4. Press (OK) to start the calibration.10 minutes later, the calibration. Press (OK) to end the calibration.1 5. To confirm the result of the adjustment, you can click (Confirm) on the (White Balance Alignment) in the (scanner) menu and insert the adjustment paper into the scanner again according to the prompt. 6. The scanner began to scan after clicking (OK). After the scan, check the read data to confirm that there are no vertical stripes such as white stripes. If there are no abnormalities in the data, the adjustment operation will end. Then, click (Close) to exit (the scanner adjustment program). If there are abnormalities in the data, select the specified part from the (white balance adjustment) menu, move the mouse to the cross on the data, and point to the striped part to specify. Read more exciting novels for free
White balance inconsistent with the environment
White balance was a setting used to ensure that white objects appeared white during shooting. Under normal circumstances, white balance should be adjusted according to the surrounding light to restore color. However, if the white balance setting was not consistent with the environment, it would produce a special effect. For example, if the white balance is set to a higher color temperature (such as a high color temperature value corresponding to more blue light) in an environment with a lower color temperature (red and yellow light), the overall image will be colder, which is inconsistent with the actual warm color environment. On the contrary, if the white balance is set to a lower color temperature in an environment with a high color temperature (blue light), the image will be warmer. This white balance setting that was inconsistent with the environment could be used in creative photography to create a unique atmosphere, express specific emotions, or achieve artistic visual effects by deliberately breaking the conventional white balance setting. In some scenes that needed to highlight subjective emotions or special visual effects, the photographer would adjust the white balance according to his own creative needs, so that it did not match the actual color temperature of the environment, rather than simply pursuing the accurate restoration of the color of the environment. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
White balance settings of the camera
The following is about the white balance settings of the camera: * * 1. Automatic White Balance ** 1. * * Principle ** - Different light sources had different color temperatures, which would affect the color display of white objects in the photo. The automatic white balance function can estimate the color temperature under different lighting conditions (such as indoors, sunny, cloudy), and then automatically adjust the color temperature of the captured image to achieve the correct white color of the white object captured under different light sources. 2. * * Usage Scenarios ** - In the case of complex lighting conditions and the need to shoot quickly, automatic white balance can provide a basic color balance. For example, when shooting scenes such as news events and activity records, the photographer might not have much time to manually adjust the white balance. Automatic white balance could quickly adapt to changes in light. * * 2. Manual White Balance Setting Technique ** 1. * * Selection of scenario and preparation work ** - Choose a pure white or near-pure white scene, such as white walls, white cardboard, or white cloth, because these scenes can provide relatively consistent reflected light, making the white balance adjustment more accurate. He placed the camera on the tripod and fixed the lens. He turned on the power switch of the camera, adjusted the aperture to the automatic mode, and switched the shifter to the manual white balance mode. 2. * * Adjusting process ** - He placed the white card under the light, aimed the camera lens at the card and filled the image, then pressed the white balance adjustment switch on the camera. If the system does not automatically give a suitable white balance setting, you can manually select the corresponding filter to adjust according to the actual color temperature of the light source. 3. * * Dealing with special circumstances ** - If there are no pure white objects on the scene (such as pure white walls), you can bring a piece of white paper to adjust the white balance, and you must operate under the light of the scene. In addition, when the lighting of the shooting site changed, such as moving from indoors to outdoor sunlight, the white balance needed to be readjusted to ensure the accuracy of color reproduction. 4. * * Borrowing other tools or methods ** - White balance was usually more accurate when taking photos outdoors under natural light, but when it came to indoor lighting, it might need to be manually adjusted. A simple method was to take a piece of pure white paper or white cloth and take a photo to measure the light. If the white color was not pure white but biased, he would adjust the white balance value to the opposite effect, then measure the light again until the adjustment was accurate, and then officially start shooting. 5. * * For different types of film or color filter ** - When using different types of film (such as sunlight type, light type) or different color filter, you must understand their characteristics and use them correctly. For example, light film was suitable for shooting under artificial light, while sunlight film was suitable for shooting under natural light. Choosing the appropriate film type or filter according to the actual scene will help to improve the accuracy of color reproduction. 6. * * Post-processing supplement ** - If the white balance adjustment could not be fully grasped during the shooting process, color correction and processing could be carried out in post-production. Use the color balance tools in the video editing software or image processing software to adjust the white balance and color correction as needed to obtain better color effects. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Nikon white balance parameters
The white balance settings of a Nikon camera would vary depending on factors such as the shooting style and environment. For different shooting styles, for example, the white balance of Japanese refreshing photos was adapted to natural light, the optimization standard was 20 purity, the effect level was 40, and so on. The white balance of vintage Hong Kong style photos was adapted to natural light, the optimization standard was 10 purity, the effect level was 40, and so on. The white balance of cool ancient style photos was adapted to natural light, the optimization standard was 10 purity, the effect level was 40, and so on. The white balance of hazy portrait photos was adapted to natural light, with parameters such as optimization standard 10 purity and effect level 20; the white balance of autumn portrait photos was adapted to natural light, with parameters such as optimization standard 20 purity and effect level 60; and the white balance of pure portrait photos was adapted to natural light, with parameters such as optimization standard 20 purity and effect level 80. White balance is closely related to color temperature, which is a unit of measurement (K) that represents the color contained in light. Different light sources had different color temperatures. For example, 1700K was match light, 1850K was candlelight, 3000K was sunrise and sunset, 3200K was incandescent light, 5600K was noon sunlight, 7000K was cloudy sky, and 20000K was clear sky. The range of the automatic white balance mode was roughly between 3000K and 8000K, and it would be adjusted according to the environment. For example, the color temperature was about 5300K on a sunny day, about 6000K on a cloudy day, about 7500K in the shade, about 3000K for incandescent lamps, about 4200K for fluorescent lamps, and about 5600K for flashes. If it was daily shooting, turning on the automatic white balance would usually meet the needs, because the camera manufacturer's adjustment of the white balance was more mature. However, if you want to take photos with a special atmosphere, you may need to manually adjust the white balance. For example, if you want to restore the color cast when shooting sunrise and sunset, you need to lower the color temperature. If you want the picture to be warmer (suitable for family, afternoon, sunrise, etc.), you need to increase the K value. If you want the picture to be colder (such as shooting snow), you need to lower the K value. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Nikon Automatic White Balance
Automatic White Balance (AWB) was the default setting for Nikon cameras. It would automatically adjust the white balance according to the environmental lighting conditions in the general range of 3000K-8000K. It did not require the user to manually adjust its internal parameters. It was suitable for most situations, but it might not be accurate under special lighting conditions. For example, the color temperature on a sunny day was about 5300K, 6000K on a cloudy day, 7500K on a shady day, 3000K on an incandescent lamp, 4200K on a fluorescent lamp, and 5600K on a flash lamp. In these special lighting scenes, if the automatic white balance effect was not good, you could consider using the default white balance (such as incandescent lamp, fluorescent lamp, cloudy day, outdoor, etc.) or other white balance settings such as custom white balance. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Color white balance algorithm
The white balance algorithm was to find the neutral color points of different brightness in the image (these points should theoretically satisfy R = G = B, but they may not be equal due to color cast), and then map them into equal values to obtain the action matrix of balanced color, and then carry out color balance processing on the whole image. Calculating the brightness of the original image with color deviation, the point close to the maximum brightness value is defined as a white point, calculating the average value of the R, G, and B color components and the brightness average value of all the white point set, and then calculating the adjustment parameters of color balancing according to a specific formula. Finally, the color balance adjustment is carried out on the R, G, and B color components of the entire image. There was also a multi-mode white balance algorithm that was based on the traditional white balance algorithm in the field of cameras. It added an AI white balance algorithm and an auxiliary color temperature sensor to integrate a variety of information to achieve a better white balance effect. This algorithm could accurately identify the true color temperature of the current light in the green or blue screen background scene, thus perfectly restoring the true color of the host and the product. It could achieve the true and natural color restoration of objects in all color temperature environments, and the skin color effect of people was excellent. Increases the authenticity and stability of the white balance, the ability to express colors, and the ability to restore the atmosphere. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
White balance Detection Tools
The following are some white balance Detection Tools: - In PS, you could enter the Camera Raw through the filter " Camera Raw " filter. The white balance tool in the basic panel could be used to correct the color bias of the photo. The white balance tool was a slanted straw icon that could absorb the reference object in the picture. The ACR would automatically determine and adjust the white balance parameters. - The gray card in the Anwenk Gray Card Set was a basic white balancing tool. The set also included pure white and real black cards. - VidPro WD- 24 white balance disc, with an 18% gray exposure target on one side and a white surface on the back. It was foldable and could be placed in a suitcase when not in use. - ExpoDisc 2.0 white balance filter was the industry standard for white balance filter. It could capture the incoming light reading and set a custom white balance accordingly. It was available in 77mm and 82mm thread size. - Some cameras had a white balance evaluation function, such as a LCD camera, which could detect the appropriate white balance setting by placing your finger in the center of the screen and constantly changing the camera's white balance according to the environment. - In the premiere, if there was a white object in the photo, you could use the " straw " tool behind the white balance to click on the white object for automatic white balance correction. You could also manually adjust the color temperature and color, but you needed color knowledge. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
White balance algorithm classification
White balance algorithms were commonly categorized into Gray World Assimilation, Perfect Reflection Assimilation, and dynamic threshold method. Among them, the average, perfect reflection, gray world, color correction, dynamic threshold, and so on can also be used as different white balance algorithm strategy modes. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
High-pass white balance algorithm
The white balance algorithm was mainly based on the grey world assumption, and most white balance algorithms were based on this assumption. The process of the algorithm was as follows: first, a reference point (reference lighting environment) was established, then the statistics of the color temperature were collected, and then the statistics were analyzed to identify the current color temperature. Finally, according to the identified color temperature environment, the corresponding RGH was supplemented to achieve white balance. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
White balance adjustment of the studio camera
There were two ways to adjust the white balance: automatic adjustment and manual adjustment. If you want to adjust the white balance to match the actual situation of the shooting scene, adding the white balance correction tool to shoot together is a better method. You can choose the white balance correction tool according to your own needs. You can also use a white balance card or a gray card to accurately restore the color of the photo. The white balance card has a neutral gray surface that can reflect light evenly, ensuring the accuracy of the color of the shooting scene, reducing color cast and improving the quality of the photo. When manually adjusting the white balance, the camera needed to point out the reference point of the white balance, which was to determine which "white" object in the picture was the white point. In the studio, you can adjust the white balance of the camera according to the characteristics of the light source in the studio (such as color temperature, etc.) to obtain accurate color reproduction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The corresponding white balance in the phone camera
Please clarify the problem. There seems to be a lack of content after " the corresponding white balance of the mobile phone camera ". For example," What are the different modes corresponding to the white balance of the mobile phone camera?" Or," What is the range of the corresponding color temperature value in the white balance of the mobile phone camera?" Wait, please complete it so that I can answer. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>