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问题 I have a several variables on the html of the component which are given their values by the typescript file. It is declared in html as follows: <h1>{{myproperty1}}<\h1> <h1>{{myproperty2}}<\h1> <h1>{{myproperty3}}<\h1> In the typescript file they are declared in the global scope as follows: import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'], }) export class AppComponent implements OnInit {

问题 I am trying to detect blur rate of the face images with below code. cv::Mat greyMat; cv::Mat laplacianImage; cv::Mat imageClone = LapMat.clone(); cv::resize(imageClone, imageClone, cv::Size(150, 150), 0, 0, cv::INTER_CUBIC); cv::cvtColor(imageClone, greyMat, CV_BGR2GRAY); Laplacian(greyMat, laplacianImage, CV_64F); cv::Scalar mean, stddev; // 0:1st channel, 1:2nd channel and 2:3rd channel meanStdDev(laplacianImage, mean, stddev, cv::Mat()); double variance = stddev.val[0] * stddev.val[0]; cv:

问题 I have a several variables on the html of the component which are given their values by the typescript file. It is declared in html as follows: <h1>{{myproperty1}}<\h1> <h1>{{myproperty2}}<\h1> <h1>{{myproperty3}}<\h1> In the typescript file they are declared in the global scope as follows: import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'], }) export class AppComponent implements OnInit {

问题 I've been trying to download certain portions of YouTube video. The long way is to download the video then extract the certain portion of it. But when it comes to a big dataset with long videos, the method is costly. The code works. But downloads the entire video instead of the certain portion. from pytube import YouTube YouTube('https://www.youtube.com/embed/yf8Ub90OWFM?start=15&end=25').streams.first().download() Expected result: 10 second video in the time interval of 15-25 seconds. 回答1:

问题 I've been trying to download certain portions of YouTube video. The long way is to download the video then extract the certain portion of it. But when it comes to a big dataset with long videos, the method is costly. The code works. But downloads the entire video instead of the certain portion. from pytube import YouTube YouTube('https://www.youtube.com/embed/yf8Ub90OWFM?start=15&end=25').streams.first().download() Expected result: 10 second video in the time interval of 15-25 seconds. 回答1:

问题 I am trying to detect blur rate of the face images with below code. cv::Mat greyMat; cv::Mat laplacianImage; cv::Mat imageClone = LapMat.clone(); cv::resize(imageClone, imageClone, cv::Size(150, 150), 0, 0, cv::INTER_CUBIC); cv::cvtColor(imageClone, greyMat, CV_BGR2GRAY); Laplacian(greyMat, laplacianImage, CV_64F); cv::Scalar mean, stddev; // 0:1st channel, 1:2nd channel and 2:3rd channel meanStdDev(laplacianImage, mean, stddev, cv::Mat()); double variance = stddev.val[0] * stddev.val[0]; cv:

问题 Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . Improve this question I'm trying to convert my datetime from a csv to POSIXct for data analysis. I've tried multiple codes but either get NA or a wrong format. The code I'm currently using is GRS$datetimelocal<- GRS$`datetime` %>% ymd_hms(tz="UTC") %>% # first convert the `Date and

问题 Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . Improve this question I'm trying to convert my datetime from a csv to POSIXct for data analysis. I've tried multiple codes but either get NA or a wrong format. The code I'm currently using is GRS$datetimelocal<- GRS$`datetime` %>% ymd_hms(tz="UTC") %>% # first convert the `Date and

问题 currently i'm struggling with my current project. I was tasked to replace the use of Username/Password based Authentication/Connection to SQL Server (2014) and replace it with a Certificate based Authentication/Connection one. So probably my questions are: Is this possible with SQL Server ? The idea is to no longer include the username/password combination to connect to the Database Instance from the Server. This then would be replaced by a certificate where, ideally would hold all the login

问题 I am trying to automate Dual list Box testing. I want to compare the selected values(left side) vs moved values (into right side list). Here is the code. Select allFromListData = new Select(listData); // values selection allFromListData.selectByIndex(0); allFromListData.selectByVisibleText("Helena"); List<WebElement> selectedList=allFromListData.getAllSelectedOptions(); //clicking on add button for(int i=0;i<selectedList.size();i++) System.out.println(selectedList.get(i).getText());