npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@femate/web-camera

v0.2.5

Published

全网最强TS版人脸识别插件

Downloads

2

Readme

简介

使用文档介绍 | 博文介绍

特性

  • ✅简单、易可拓展的API,零成本上手
  • ✅三种相机模式:默认相机、美颜相机、本地人脸识别相机
  • ✅支持镜像:可以水平翻转。PS:保存后的图片URL根据场景翻转
  • ✅支持拍照功能:根据业务场景调用即可。
  • ✅支持下载图片:插件自封装a标签,触发下载事件。PS:下载的图片为拍照时记录图片。
  • ✅更多能力等你挖掘....

如果您觉得这个项目还不错, 可以在 Github 上面帮我点个star, 支持一下作者 ☜(゚ヮ゚☜)

如何使用

方式1:通过 script 标签引入

CDN源

CDN源:jsdelivr


<script src="https://cdn.jsdelivr.net/npm/@femate/web-camera@latest"></script>

CDN源:unpkg

<script src="https://unpkg.com/@femate/gweb-camera@latest"></script>

HTML调用

<h1 align="center">Hello 我是扫地盲僧!</h1>
<p align="center">这是一个兼容移动PC,实现客户端人脸识别,全网唯一TS版Web摄像头插件</p>
<div id="wrapper"></div>
<script type="text/javascript">
    window.onload = () => {
        const camera = new WebCamera('#wrapper', {
          // 任意参数大于0,则代表开启美颜插件
            beautyConfig: {
                beauty: 0,
                brightness: 0,
                ruddy: 0
            },
            // 本地人脸识别插件
            isClintFace: false,
            takePhoto(src) {
                console.log(src, '拍照的图片')
            },
            isHasFace(val) {
                console.log('检测到人脸')
            }
        });
        camera.start();
    }
</script>

方式2:通过 import 引入

安装依赖

npm i @femate/web-camera
# or
pnpm add @femate/web-camera
# or
yarn add  @femate/web-camera 

使用

<h1 align="center">Hello 我是扫地盲僧!</h1>
<p align="center">这是一个兼容移动PC,实现客户端人脸识别,全网唯一TS版Web摄像头插件</p>
<div id="wrapper"></div>
  import WebCamera from '@femate/web-camera'
  const WebCam = new WebCamera('#app', {
            // 任意参数大于0,则代表开启美颜插件
            beautyConfig: {
                beauty: 0,
                brightness: 0,
                ruddy: 0
            },
            // 本地人脸识别插件
            isClintFace: false,
            takePhoto(src) {
                console.log(src, '拍照的图片')
            },
            isHasFace(val) {
                console.log('检测到人脸')
            }
        })
  WebCam.start()

事件

Options

const defaultOptions = {
  // 相机参数
  cameraStyle: {
    width: 320,
    height: 320,
    radius: '48%',
    border: '2px solid #ccc',
    bg: 'black'
  },
  // 导出图片设置
  outImg: {
    // 导出图片类型,/png|jpeg|bmp|gif/
    type: 'png',
    // 导出图片质量0-1之间
    quality: 0
  },
  // 是否开启镜像,响应式参数
  isFlip: true,
  // 美颜相机参数
  beautyConfig: {
    beauty: 0,
    brightness: 0,
    ruddy: 0
  },
  // 是否开启clint人脸检测
  isClintFace: false,
} as const

PublicEvent

对外暴露事件

  //开始视频  自动检测相机模式
  public start(){...}
  //拍照   PS:返回base64URL
  public takePhoto(callback):string{...}
  //清除画布
  public clearCanvas() {...}
  //手动更新美颜参数
  public setBeautyParam(params:BeautyConfig){...}
   //保存图片
  public downloadImg(){...}
  //上传图片,处理为文件格式
  public uploadImg(callback){...}
  //重置相机
  public reset(){...}
  //销毁实例
  public destroy() {...}

核心code

如果你不需要过多的插件,只想要基础版设备调用事件,这里已帮你抽离出最核心的部分。

设备兼容

// 设备兼容处理兼容
const cameraPolyFill = ():Promise=>{
  const URL = window.URL || window.webkitURL
  this.userMedia = this.userMedia && !!navigator.mediaDevices.getUserMedia && !!this.URL
  if (typeof window === 'undefined') {
      return;
  }
  if (navigator.mediaDevices === undefined) {
      navigator.mediaDevices = {};
  }
  // 兼容火狐不工作的情况
  if (navigator.userAgent.match(/Firefox\D+(\d+)/)) {
    if (parseInt(RegExp.$1, 10) < 21) this.userMedia = false;
  }
  // 兼容离开页面时关闭媒体流
  if (this.userMedia||window.stream) {
    window.addEventListener('beforeunload', function (event) {
      window.stream.getTracks().forEach((track: any) => {
        track.stop();
      });
    });
  }
  // 如果缺少 getUserMedia 属性,我们将添加它
  if (navigator.mediaDevices.getUserMedia === undefined) {
    // https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia
    navigator.mediaDevices.getUserMedia = function (constraints) {
      const getUserMedia =
        navigator.getUserMedia ||
        navigator.webkitGetUserMedia ||
        navigator.mozGetUserMedia ||
        navigator.msGetUserMedia;

      if (!getUserMedia) {
        return Promise.reject(
          new Error("getUserMedia is not implemented in this browser")
        );
      }
      // 打包一个旧的 getUserMedia 函数
      return new Promise(function (resolve, reject) {
        getUserMedia.call(navigator, constraints, resolve, reject);
      });
    };
  }
}

设备调用

public getUserMedia(width: number, height: number): Promise<any> {
    let self = this
    const constraints: ContainTypes = {
      audio: false,
      video: {
        width: { ideal: width },
        height: { ideal: height },
      },
      facingMode: this.front ? 'user' : 'environment',
    }
    return new Promise((resolve, reject) => {
      navigator.mediaDevices.getUserMedia(constraints).
        then((stream) => {
          // 兼容异步加载问题
          if ("srcObject" in this.video) {
            self.video.srcObject = stream;
          } else {
            // 使用 URL.createObjectURL作为旧浏览器的兼容
            self.video.src = self.URL.createObjectURL(stream)
          }
          window.stream = stream;
          resolve(stream)
        }).catch((error: Error) => {
          reject(error);
          console.log(error);
        });
    })
  }

Video转Canvas

常规方案是toDataURL,但其性能问题我们要废弃它,1同步堵塞,2占用更多内存,3获得字符体积大等问题

public videoToCanBlob(canvas: HTMLCanvasElement, imgType: string, quality: number):Promise<any> {
    return new Promise((resolve, reject) => {
      //异步执行函数
      const ctx = canvas.getContext('2d');
      ctx?.drawImage(this.video, 0, 0, canvas.width, canvas.height)
      const reader = new FileReader()
      canvas.toBlob((blob: any) => {
        reader.readAsDataURL(blob as any)
        reader.onload = (e: any) => {
          resolve(e.target?.result)
        }
      }, `images/${imgType}`, quality)
    })
  }

About Me

公众号:盲僧公众号,关注后回复「粉丝群」

RoadMap

Milestones

License

Apache-2.0 © MaleWeb