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Link: http://blog.csdn.net/li_007/archive/2010/03/16/5384937.aspx
Pioneering little turtle -------> csdn
During this period of time, the camera calibration and image malformed Correction Problems are almost the same. Let's take a break and share some results with you!
I.
The colors you see on the screen will depend on your display, graphics settings, lighting, and so on, and most people use the same default Windows color profile. Now WINDOWS7 provides a display Color Calibration wizard to help you set your brightness, contrast, and color settings correctly.
This feature allows you to adjust the gamma, brightness, contrast, and color balance to ensure that the screen colors are displayed correctly.
This feature can b
calibration of analog signals
This example shows you a technique for calibrating a sensor: Read the sensor value for 5 seconds at startup, then look for its maximum and minimum value. The maximum and minimum values after calibration will be useful in the map function.
complete the hardware device required for this example
Arduino Board or Genuino board
LED Analog signal sensor (ph
In the control panel, the path is "appearance and personalization" and there is "color calibration" in the display subitem ";Click "color calibration". The color calibration page is displayed;After clicking "next", some basic introductions and requirements for color calibration
Why adjust and correct the camera?
Depending on the camera you use, there will be differences such as the focal distance and lens skew. The characteristic values (camera parameters) of cameras like this will affect the calculation process of the 3D positions marked by the image, this affects the placement of 3D objects after they are generated. In order to get the correct measurement results, you must adjust and correct the camera parameters before the experiment.
The official English website co
HiSilicon Image quality Correction method (LCS calibration: Mid-bright, surrounding dark phenomena)
Due to different camera lens, out of the original data, will appear in the middle bright, around the phenomenon of dark, so the need for ISP calibration processing.
The HiSilicon provides pqtools tools for calibration. Provide the document "Image quality debugg
Most detailed information: MTK Calibration Profile parameter detailed description downloadThe following is the MTK calibration profile parameters detailed information, data to the Break Network technology forum Download, what do not understand the place Add Group Advisory: 813238832Introduction to the 4.1 INI file:4. 1. 1[of the RF function Group]The following are the items defined in the Setup INI file.GSM
Baidu checked two methods;First, we put the quilt on the bed and threw the cell phone hard to let it go in the air for more than three and a half weeks, turning around 720 °;The second is to put the cell phone horizontally aside and wait for it to calibrate.
After my own tests,The first one is tossing for a long time, and the compass is not turned green and ineffective;In the second case, the compass is white first. After a long time, it turns red. Then, the body gradually becomes hot. I put it
This article introduces the method of battery calibration with power management 9.0 and Oko as an example:
Note: Battery calibration time is usually 5-6 hours, during calibration do not plug the power supply, battery, do not switch mode and do not use the computer.
Power Management 9.0 (energy Manager) Battery cali
cvdrawchessboardcorners function draws the detected corner points in red circles. If the whole board is detected, it uses a straight line to connect all corner points.
Calibratecamera2 uses calibration to calculate the internal and external parameters of the camera.
Void cvcalibratecamera2 (const cvmat * object_points,
Constcvmat * image_points, const cvmat * point_counts,
Cvsizeimage_size, cvmat * intrinsic_matrix,
Cvmat * distortion_coeffs, cvmat
Recently updated sam9263 Angstrom, resulting in a poor touch screen, the performance of the touch is not allowed. Of course, there is a touch calibration when starting. Google, as if the latest x is the use of xorg, can not directly support tslib, to use x xf86-input-tslib driver, using openembedded compiled the driver, and add it to the file system, Modified xorg.conf to: section "Serverlayout" identifier "default" inputdevice "Atmel-ts" "Corepoint
1, the mouse to move to the top right corner of the taskbar and click "Settings";
2, Control Panel;
3, appearance and personalization;
4, display-enlarge or reduce text and other items;
5, calibration color;
6, welcome to use the calibration color;
7, adjust gamma, there are examples in the middle, need to use the display image as far as possible to adjust close to the middle sample diagra
The calibration program based on opencv saves the results to text files.
Vc6 + opencv beta 3.1, dialog box architecture.
Development logs recorded at that time:
Thanks to God, complete this calibration procedure by adding one night in half an afternoon.Create a dialog box framework and modify and improve it from calibfilter.The core calibration function is in pro
Reference: http://blog.csdn.net/kupe87826/article/details/8125720
Http://www.gisall.com/html/78/6678-5654.html
Source: http://blog.csdn.net/kupe87826/article/details/8129975
Software environment: OS win7, Envi5.0
I. Data sources
My data is downloaded from usgs, because the landsat7's webpage was downloaded from 2003 (le71340332001296sgs00.tar.gz ). The original data is described as follows:
WRS reference grid:
Wrs_path= 134
Wrs_row = 033
Image Acquisition Time:
Date_acquired = 2001-10-23
Scen
Windows8 greatly optimized the use of touch screen, so that users with touch screen to enjoy more user-accustomed to the operation. This article describes how the resistance screen can be calibrated under WINDOWS8. For many students, the use of touch-screen equipment has been very common, for handheld devices, due to small size, so the corresponding error may be the unconscious of their own correction, and for the larger size of the touch equipment, calibrat
About the verification algorithm learning (learning Ethernet encountered) Ethernet header or data will have a check, the implementation of the IP core on the FPGA, with CRC Check, and then learn the ICMP protocol, also see a check algorithm, in order to learn the rationale behind the analysis.First, look at the ICMP packet format, mainly the ping command is used (there will be a specially ping C language implementation), so just to show the ICMP rules behind the ping command. (from wiki)The stud
If you're an old Windows 7 user, from M1 to Beta, and from RC to RTM, you'll probably find that some users ' system slows down after using XP Photo Viewer. Especially when you use Windows Photo Viewer to view some picture format files, the system call process is obviously somewhat "slow".
The reason for this is that Windows 7 systems are slowed down because the "use Windows 7 Monitor calibration" is enabled.
Small knowledge: Why is the "use Windows
enabling the use of WINDOWS7 monitor calibration slows down the system
Using the Windows7 color correction feature produces an ICC profile within the system, and then when a user browses to a picture file, the Windows7 defaults to calling the resulting ICC profile instead of calling the component that comes with the video card. If the user has not used the Windows7 color correction feature, the ICC profile will not appear, and the above problem will
Linux system calibration time cp/etc/localtime. bakcp/usr/share/zoneinfo/Asia/Shanghai/etc/localtimentpdatepool. ntp. orghwclock -- systohc automatically obtains the network time and synchronizes the timed correction server through the ntp service... linux system calibration time cp/etc/localtime. bakcp/usr/share/zoneinfo/Asia/Shanghai/etc/localtimentpdate pool. ntp. orghwclock -- systohc uses the ntp servi
Gamma calibration was first used to correct the effect of a CRT display, and later non-CRT displays were compatible with the GAMMA value of a CRT display.
The brightness value produced by the transform function of most CRT monitors is proportional to a certain amount of energy (called gamma) of the signal amplitude ). Therefore, the range of high brightness is extended, while the range of low brightness is compressed. In terms of noise suppression, t
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