Article transferred from: http://blog.csdn.net/zpf03/article/details/5903484
During this time, I developed an image recognition project based on wince6.0 + 6410, using the Development Board of youjian hengtian. This development board has an ov9650 camera connection port, but one of the biggest problems is that the image obtained by the camera is too small and only 320*240 images can be seen. I need 1280*10
Implementation Process of camera hal
Next we will introduce the implementation process of camera Hal. to implement a specific function of camera, A hardware-related camera library is required at the Hal layer (for example, by calling the video for Linux driver and JPEG encod
Summary of debugging process and method of camera driver
Based on the previous debugging of the camera driver, I have summarized some minor experiences:
1. Check whether the camera circuit connection is correct based on the circuit diagram;
2. Use A multimeter to measur
In the first half of this year, I transplanted a Linux driver to a common vimicro camera on the market to an Embedded Development Board. The development environment is:
OS: linux2.6.9
Compile: Cross 3.3.2
CPU: Intel PXA270
Camera type: vimicro zc301p + hv7131r
The driver source code used is based on the free software s
Install the camera driver on Ubuntu
Install the camera driver on Ubuntu
A) Please refer to
Http://mxhaard.free.fr/download.html
Choose to download the latest driver, which supports most cameras on the market.
B) Compile, install, and load the
Two Buffer Queue exist in the whole application system of camera: idle Buffer Queue and ready Buffer Queue. Idle Buffer Queue are maintained by the client, while ready Buffer Queue is maintained by the camera driver.
At the beginning of the application, all the capture buffer is in the idle Buffer Queue. At this time, the dr
I am dealing with the s3c2440a camera program under Windows ce5.0 today. I have found a lot of information on the Internet, but it is not completely complete. After summing up these days, pay attention to several issues in the driver and application processing projects, which are listed here for your reference.
1. In Windows ce5.0, drivers and applications are separated, and virtual memory addresses are ver
Win7 System Device Manager camera driver display Huang solution share to everyone, Device Manager camera driver display Huang number, installation drive process prompts registry damage, camera is a lot of people chatting and surfing the process of the wonderful use of equipm
Author: Liu Xuhui Raymond reprinted. Please indicate the source
Email:Colorant@163.com
Blog:Http://blog.csdn.net/colorant/
Home page:Http://sites.google.com/site/rgbbones/
Camera Sensor Used on embedded systems, such as mobile phones, is usually controlled by a bus like I2C, and the Controller on the CPU provides the required driver timing, generally, data formats such as YUV and RGB are supporte
Camera Driver related files:1, PROJECTCONFIG.MK configuration related information, define the main sub-camera. and other information2, kd_imgsensor.h definition sensor_id information files, kernel and vendor need to have a copy3, kd_camera_hw.c kd_camera_hw.h control camera up and down, macros defined in Kd_camera_hw.h
The camera that was installed in Ubuntu8.04 a few days ago also supports plug-and-play. However, a problem suddenly occurred today, and Vmware did not recognize it anyway, so we had to debug it. Check USB: lsusb: Bus005Device001: ID0000: 127bus002device001: ID0000: 0000Bus004Device002: ID0483: 2016 SGSThomsonMic
The camera in Ubuntu 8.04 also supports plug-and-play a few days ago, but today suddenly a probl
sudo apt-get install cheesesudo apt-get install CamoramaYou can then open the app cheese and watch to get the image.You can also get images from code. The Python code is as follows:1 ImportCV2.CV as CV2 3 Import Time4 5 if __name__=='__main__': 6 7Cv. Namedwindow ("Camera", 1) 8Capture =CV. Capturefromcam (0)9num =0; Ten whileTrue: OneIMG =CV. Queryframe (Capture) ACv. ShowImage ("Camera", IMG) - -K
time Xu contains DDK compiler tool), in fact, DriverStudio is the DDK of the package, its difficulty although a decline, but for me such a beginner is still difficult, there is a metaphor for a good, driverstudio and DDK relationship , just like the VC and SDK relationship;
With WindRiver, as mentioned earlier, WindRiver actually has a drive of its own (normal mode), so it can directly communicate with your hardware, of course, you need to make some settings for your hardware, such as the deli
Download one from the official Asus website and right-click my computer icon on the desktop,Choose manage-Device Manager-image processing device-double-click-right-click USB video device-properties-details.Check the vid and PID code, go to the Asus official website to find your netbook model, and download the corresponding camera driver.Official website address: support.asus.com.cnClick Download file, click Select Product, and select a laptop from the
/*This article is prepared by Mo Gray Ash, reproduced please indicate the source.Mo Ash Gray Email:[email protected]*/1 Vulnerability DescriptionThe vulnerability arises mainly because the camera driver provides several interfaces for user-space calls. User space can use system call functions such as IOCTL or mmap to affect the camera
I found a test program on the Internet and looked at it. It was modified according to capture. C. The test procedure is as follows:
1. GCC-O capture_image capture_image.c
2. Switch CTRL + ALT + F1 to the Ubuntu console. Switch to the console mode because the test image is not visible in the graphic mode, which may be related to the framebuffer settings.
3. sudo modprobe Vivi
4. sudo./capture_image-D/dev/video0
At this time, we can see that there is a 640xlarge window in the upper left corner of
Camera architecture and working principle in Android 1. Camera architecture in Android
The camera architecture of Android is the application layer, framework layer, hardware abstraction layer, and Linux driver layer from top to bottom. The following describes the framework layer, hardware abstraction layer, and Linux
To use cameras in an embedded system, BCB was used to write software in WINXP. A new company needs to start Image Processing in an embedded system. I have never touched on embedded systems before, let alone Image Processing in embedded systems. Now let's start from scratch. The first step is a problem. Many cameras are not driven by wince. What should we do? Check, query, and check the information on the Internet. Later, we know that the camera of the
Ov511usb camera driver with Linux-2.4.18 kernel transplanted on S3C2410 Development Board
Content1. Driver2. Application writing
1. DriverThe Linux-2.4.18 is a drive with an ov511 camera by default, selected from the USB device, and activated the video option to support ov511.
2. Application writingThis is a program in MiniGUI. It can be simulated using qvfb an
I have never touched Samsung's Development Board before, but I don't know about s5pv210. The ad chip tw9912 is also the first contact. Samsung Fae is not powerful (actually none). During camera debugging, I suspect that the tw9912 configuration is incorrect. I suspect that the Samsung fimc driver is faulty. It is painful. Today I finally pulled up the correct image and posted it to share it with you.
Tw991
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