Description: 本例提供了使用directshow代替opencv的vfw 的源代码,与转化为iplimage格式的算法. 实验中发现opencv的cvCaptureFromCAM 使用的是vfw,采用消息机制,速度较慢,测试发现fps只有 9-12左右,太慢了. 发现经过使用directshow后速度提升到60帧/s。-Provided in this case the use of DirectShow to replace the VFW opencv source code, and translated into algorithms iplimage format. Opencv experiment found the cvCaptureFromCAM using vfw, the use of information mechanism to slow fps test found that only about 9-12, too slow. discovered through the use of DirectShow to speed after 60/s. Platform: |
Size: 5120 |
Author:fullball |
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Description: 实验中发现opencv的cvCaptureFromCAM 使用的是vfw,采用消息机制,速度较慢,测试发现fps只有 9-12左右,太慢了. 发现经过使用directshow后速度提升到60帧/s.在opencv group上了解到这是一个普遍问题,也许有人做过转换,却没有完整的例子与代码.在此贴出.对希望提高opencv视频分析速度的有所帮助-Opencv experiment found that the cvCaptureFromCAM using vfw, the use of information mechanism to slow fps test found that only about 9-12, too slow. Discovered through the use of DirectShow velocity to 60/s. In opencv group understanding that this is a common problem, perhaps someone has done the conversion, but no complete examples and code.此贴out in. opencv want to improve the speed of video analysis help Platform: |
Size: 3072 |
Author:rt |
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Description: 3种像素历遍方法的比较和实现，对做图象方面很有帮助-Three kinds of pixels times the calendar methods and realize, make images of helpful Platform: |
Size: 129024 |
Author:zhw |
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Description: 实验中发现opencv的cvCaptureFromCAM 使用的是vfw,采用消息机制,速度较慢,测试发现fps只有 9-12左右,太慢了. 发现经过使用directshow后速度提升到60帧/s.在opencv group上了解到这是一个普遍问题,也许有人做过转换,却没有完整的例子与代码.在此贴出.对希望提高opencv视频分析速度的有所帮助-Opencv experiment found that the cvCaptureFromCAM using vfw, the use of information mechanism to slow fps test found that only about 9-12, too slow. Discovered through the use of DirectShow velocity to 60/s. In opencv group understanding that this is a common problem, perhaps someone has done the conversion, but no complete examples and code.此贴out in. opencv want to improve the speed of video analysis help Platform: |
Size: 2048 |
Author:rt |
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Description: 实验中发现opencv的cvCaptureFromCAM 使用的是vfw,采用消息机制,速度较慢,测试发现fps只有 9-12左右,太慢了. 发现经过使用directshow后速度提升到60帧/s.在opencv group上了解到这是一个普遍问题,也许有人做过转换,却没有完整的例子与代码.在此贴出.对希望提高opencv视频分析速度的有所帮助-Opencv experiment found that the cvCaptureFromCAM using vfw, the use of information mechanism to slow fps test found that only about 9-12, too slow. Discovered through the use of DirectShow velocity to 60/s. In opencv group understanding that this is a common problem, perhaps someone has done the conversion, but no complete examples and code.此贴out in. opencv want to improve the speed of video analysis help Platform: |
Size: 2048 |
Author:er |
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Description: 利用OPENCV来打开USB摄像头，用到了cvCaptureFromCAM(-1)函数，选择默认的第一个摄像头作为输入，同时，对OPENCV中的视频跟踪进行了实验。-OPENCV to use the USB camera, use the cvCaptureFromCAM (-1) function, select the default first camera as an input, the same time, the video track OPENCV experiments were carried out. Platform: |
Size: 1168384 |
Author:汪明 |
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Description: //日期：2012年12月1日
//环境：openCV2.3+window-xp+visual studio 2010
//项目：window32控制台
//功能：显示单个摄像头的数据
//注意：有两种方法获取数据 CvCapture* capture = cvCreateCameraCapture(-1) 和cvCapture* capture = cvCaptureFromCAM(0) -//Date: December 1, 2012// environment: openCV2.3+window-xp+visual studio 2010// Project: window32 console// Function: single camera data// Note: There are two ways to get data CvCapture* capture = cvCreateCameraCapture (-1) , and cvCapture* the capture = cvCaptureFromCAM (0) Platform: |
Size: 686080 |
Author:蔡杰 |
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Search - cvCaptureFromCAM