opened 第28页

scrapy爬虫解析起始页网页链接后request请求不能正常跳转到下一级爬虫类的解析方法中

爬虫启动后，bash显示如下信息：2020-04-0718:38:17[scrapy.core.engine]INFO:Spideropened2020-04-0718:38:17[scrapy.extensions.logstats

嘿！MAN·2020-07-13 05:47

025

E25ThemanwhoopenedfireattheFortHoodmilitarypostinTexaswasaveteranwhoservedfourmonthsinIraqandwasundergoingtreatmentformentalhealthissues

一日一译·2020-07-13 02:41

Opencv2打开摄像头并显示图像

capture.isOpened())//判断是否打开摄像头return1;boolstop(false);M

林多·2020-07-12 20:02

English P5-Body language

lchoosethistopicforthreereasons1.KeypointforP5isbodylanguageWhenIopenedtheManual,Ifoundthatit'sagoodtopic

洋葱哥张乔·2020-07-12 19:41

windows目录下python版本的opencv使用imwrite保存图片的问题

程序一：cap=cv2.VideoCapture("D:/项目/video/front.avi")index=0while(cap.isOpened()):ret,frame=cap.read()cv2

yuanlulu·2020-07-12 18:36

用 python , opencv 打开网络摄像头读取图像

######importcv2url='rtsp://admin:[email protected]:554/11'cap=cv2.VideoCapture(url)while(cap.isOpened

yournevermore·2020-07-12 18:24

opencv 从摄像头抓取图片

m_VideoCaptureTest.isOpened()){printf("=====================zienon-opencvfailed\n");return0;}for(inti

谢文浩·2020-07-12 17:27

opencv(三)：储存摄像头图片

importcv2cap=cv2.VideoCapture(0)#创建一个VideoCapture对象flag=1#设置一个标志，用来输出视频信息num=1#递增，用来保存文件名while(cap.isOpened

哦吼吼231·2020-07-12 14:13

python-opencv 学习记录（一）将视频提取为图片并保存

编程环境：win7+python3.6+opencv4.0代码如下：#####将视频分解为图片importcv2ascvcap=cv.VideoCapture("E:/fenjie/1.mp4")isOpened

酒醒还醉醉还醒·2020-07-12 13:31

opencv-python获取视频时长

importcv2cap=cv2.VideoCapture(file_path.encode('utf-8'))#file_path是文件的绝对路径，防止路径中含有中文时报错，需要解码ifcap.isOpened

weixin_43249191·2020-07-12 12:35

▼OpenCV-Python操作UBS摄像头“pipeline”

importnumpyasnpimportcv2ascvcap=cv.VideoCapture(0)ifnotcap.isOpened(): print("Cannotopencamera") exit

嵌入式修行僧·2020-07-12 11:23

OpenCV中读取视频/camera代码

capture.isOpened())return

weixin_34396103·2020-07-12 10:37

python视频播放cv2

importnumpyasnpimportcv2cap=cv2.VideoCapture('D:/love.mp4')while(cap.isOpened()):ret,frame=cap.read()

weixin_33595571·2020-07-12 07:32

Linq学习（零）-错误汇总

CS0009Metadatafile'C:\Users\Kimisme\Documents\LINQPadPlugins\Framework4.6\MyExtensions.FW46.dll'couldnotbeopened

weixin_30668887·2020-07-12 06:41

OpenCV2 多摄像头读取视频实现

cap1.isOpened()){return-1;}if(!

wangzhebupt·2020-07-12 05:19

opencv3 打开usb摄像头

include#include#includeusingnamespacecv;usingnamespacestd;intmain(){VideoCapturecapture(0);if(capture.isOpened

ultimate1212·2020-07-12 04:10

Python3 +opencv 调用摄像头拍照保存

Python3.5opencv4.1上代码：importcv2importsysdefgetImage(index,path):cap=cv2.VideoCapture(1)num=1whilecap.isOpened

sunlightwizard·2020-07-12 03:08

MINA框架的搭建主要的类与发法

NioSocketConnector用于创建客户端连接；IoSession用来保存会话属性和发送消息；IoHandlerAdapter用于定义业务逻辑，常用的方法有：sessionCreated()当会话创建时被触发；sessionOpened

夏目先生·2020-07-12 03:16

1.25-an outing day

07:30SunriseoverPotalaPalaceItis07:30inthemorning,Iopenedthewindow,severalstarshunginthesky,agleamoftwilightshinethroughthecloud

子骐·2020-07-12 02:48

git使用错误大全（不定期更新）

现象：Git操作的过程中突然显示Anothergitprocesssemmstoberunninginthisrepository,e.g.aneditoropenedby‘gitcommit’.Pleasemakesureallprocessesareterminatedthentryagain.Ifitstillfails

nymlc·2020-07-12 02:08

写作|Content Marketing Day 2

PartoneCompositionWewelcomeeveryonewholovesreadingtojoinuswithaMoonLibrarycard.Recently,wehaveopenedupthefollowingservices

冥想音·2020-07-12 01:05

无法识别Jlink及Jlink被识别为盗版及keil烧录后停止的修复

对策：1）安装一个4.6以前的版本，打开其目录下的J-LinkCommander,更新当前固件为较低的版本，链接是http://www.openedv

田公子txc·2020-07-12 01:09

Opencv学习笔记（二十）--读取视频帧的几种方法

cap.isOpened())//checkifwesucceededreturn-1;namedWindow("

spw_1201·2020-07-11 23:25

使用Opencv调用摄像头并在MFC中进行视频显示

g_camera.isOpened()){g_camera=cv::VideoCapture(1);}if(!

Lion.Kuo·2020-07-11 22:23

IDEA报错class path resource [spring/applicationContext.xml] cannot be opened because it does

Contextinitializationfailedorg.springframework.beans.factory.BeanDefinitionStoreException:IOExceptionparsingXMLdocumentfromclasspathresource[applicationContext.xml];nestedexceptionisjava.io.FileNotFou

常敲代码手不生·2020-07-11 22:25

如何检查文件正在被使用

fromhttp://www.eggheadcafe.com/software/aspnet/31943038/check-file-opened-or-not.aspxcheckfileopenedornot

ruixj·2020-07-11 22:11

opencv-python读取视频(显示、保存)

从摄像头捕获视频importnumpyasnpimportcv2cap=cv2.VideoCapture(0)ifnotcap.isOpened():print("Cannotopencamera")exit

JstuCheng·2020-07-11 20:38

opencv打开笔记本摄像头

cap.isOpened())return-1;Matframe;while(1){cap>>frame;//等价于cap.read(frame);if(frame.empty())b

xutingjie168·2020-07-11 18:44

Git操作失败并提示Another git process seems to be running in this.....

Git操作的过程中突然显示Anothergitprocesssemmstoberunninginthisrepository,e.g.aneditoropenedby‘gitcommit’.Pleasemakesureallprocessesareterminatedthentryagain.Ifitstillfails

此时-无声·2020-07-11 17:53

opencv录制视频并保存视频

VideoWriterwriter("VideoTest.avi",CV_FOURCC('M','J','P','G'),25.0,Size(640,480));Matframe;while(capture.isOpened

qq_32039433·2020-07-11 16:17

OpenCV中VideoWriter输出视频文件为空或6KB解决方法(java)

后来在StackOverflow找到一个关于vw.isOpened()返回值为false（我的代码返回值为true）的回答，抱着试一试的心态解决了问题。代码如下：Matfram

郑童鞋·2020-07-11 16:27

opencv—python录制视频、保存视频

fourcc=cv2.VideoWriter_fourcc(*'XVID')out=cv2.VideoWriter('output.avi',fourcc,30.0,(640,480))while(cap.isOpened

yep。·2020-07-11 16:32

使用OpenCV采集摄像头的视频并保存为文件

cap.isOpened()){printf("o

qiuchangyong·2020-07-11 14:38

PWM互补输出及死区时间代码和详解（寄存器版本）

原文：http://www.openedv.com/thread-62861-1-1.html一直跟着原子哥的教程一直学到PWM这一章发现一头雾水，自己也没发过什么分享帖，感觉原子哥对PWM这章讲的比较少

小薛1988·2020-07-11 14:34

Xcode 工程文件打开不出来， cannot be opened because the project file cannot be parsed.

svn更新代码后，打开xcode工程文件，会出现xxx..xcodeprojcannotbeopenedbecausetheprojectfilecannotbeparsed.因为.xcodeproj工程文件冲突了

彳亍de孑孓·2020-07-11 13:54

OpenCV读取摄像头以及保存视频

True):#Captureframe-by-frame#ret:判断是否读取成功，成功返回true#frame:读取的一帧以矩阵的形式呈现ret,frame=cap.read()ifnotcap.isOpened

milk_and_bread·2020-07-11 13:24

OpenCV：视频分解为图片/图片合成为视频

视频分解为图片importcv2cap=cv2.VideoCapture("1.mp4")isOpened=cap.isOpened#判断是否打开‘print(isOpened)fps=cap.get(

简单随风·2020-07-11 12:07

opencv2读取摄像头并保存为视频

cap.isOpened()){cout>frame;if(frame.empty()){cout<<"Videoover"<

阳光下的Smiles·2020-07-11 11:33

如何在Mac中安装damaged的dmg文件

CodeCollaboratorInstaller"isdamagedandcannotbeopened.youshouldejectthediskimage.itriedmanytimesandgotthesameerrormassage.don

liuyun888·2020-07-11 11:03

Win10+OpenCV无法正常读取USB摄像头数据解决方案

VideoStream.isOpened()){cout<<"Error:Cannotopenvideostreamfromcamera"<

干点正事·2020-07-11 10:58

opencv摄像头用法

capture.isOpened()){cout>frameImg;//判断是否读完if(!frameImg.e

ShellCollector·2020-07-11 09:26

写第一个Spring应用报错 " ... class path resource [Beans.xml] cannot be opened because it does not exist "

之前是这样写的,然后报的错:ApplicationContextcontext=newClassPathXmlApplicationContext(“Beans.xml”);将上述代码改成:ApplicationContextcon=newClassPathXmlApplicationContext("/***/***/Beans.xml");改成下面这样也是可以的:AbstractApplica

hujian66·2020-07-11 08:00

Level5#Unit1#Part1#Vocabulary#Types-of-Information

Publicinformationisavailabletoanyonewhowantstoknowit.Ifastoreisopenedtothepublic,itmeansanyonecancomein.Privateinformationisnotopentoeveryone

ncgege·2020-07-11 05:28

读视频时，帧率的设置

capture.isOpened()){return0;}longtotalFrameNumber=capture.get(CV_CAP_PROP_FRAME_COUNT);//获取视频的总帧数cout

那年聪聪·2020-07-11 05:27

The issue may have been deleted or you might not have permission to see the issue.

XXX-####cannotbeopened.Theissuemayhavebeendeletedoryoumightnothavepermissiontoseetheissue.Theissuemayhavebeendeletedoryoumightnothavepermissiontoseetheissue.https

中國壹石頭·2020-07-11 04:51

OpenCV:读取视频流（相机，视频，ip相机）

/video/01.mp4")#视频cap=cv2.VideoCapture(0)#0自带相机，1外接相机#循环读取每一帧while(cap.isOpened()):ret,frame=cap.r

bajiang7063·2020-07-11 02:56

Git操作失败，崩溃处理（Another git process seems to be running in this repository...）

问题：Anothergitprocessseemstoberunninginthisrepository,e.g.aneditoropenedby'gitcommit'.Pleasemakesureallprocessesareterminatedthentryagain

Roc_zhou·2020-07-11 00:51

使用OpenCV-Python外接摄像头打不开问题

OpenCV-Python外接摄像头打不开情况描述使用OpenCV-Python打开摄像头常用的代码是这样的：importcv2ascvcap=cv.VideoCapture(0)flag=cap.isOpened

ShakalakaPHD·2020-07-10 23:14

openCV测试代码（调用摄像头获取图片并转换）

capture.isOpened())//没有打开摄像头的话，就返回。return1;Mat

SGchi·2020-07-10 23:35

opencv python播放视频和保存视频

coding:utf-8-*-importnumpyasnpimportcv2defplayVideo(videoFile):cap=cv2.VideoCapture(videoFile)ifcap.isOpened

龚慧林·2020-07-10 21:29

推荐频道

opened