新年到：让Serverless给你头像加点装饰
- 2020 年 1 月 2 日
- 笔记
新年要到了，明天就是2020了，还没人送你头像装饰？让Serverless架构送你吧！
先分享一下地址：(http://newyear.0duzhan.com/)
整体预览：
主要功能就是选择一个图片，上传自己的头像，然后点击生成就可以：
代码也很简单：
import base64, json from PIL import Image import uuid def return_msg(error, msg): return_data = { "uuid": str(uuid.uuid1()), "error": error, "message": msg } print(return_data) return return_data def do_circle(base_pic): icon_pic = Image.open(base_pic).convert("RGBA") icon_pic = icon_pic.resize((500, 500), Image.ANTIALIAS) icon_pic_x, icon_pic_y = icon_pic.size temp_icon_pic = Image.new('RGBA', (icon_pic_x + 600, icon_pic_y + 600), (255, 255, 255)) temp_icon_pic.paste(icon_pic, (300, 300), icon_pic) ima = temp_icon_pic.resize((200, 200), Image.ANTIALIAS) size = ima.size # 因为是要圆形，所以需要正方形的图片 r2 = min(size[0], size[1]) if size[0] != size[1]: ima = ima.resize((r2, r2), Image.ANTIALIAS) # 最后生成圆的半径 r3 = 60 imb = Image.new('RGBA', (r3 * 2, r3 * 2), (255, 255, 255, 0)) pima = ima.load() # 像素的访问对象 pimb = imb.load() r = float(r2 / 2) # 圆心横坐标 for i in range(r2): for j in range(r2): lx = abs(i - r) # 到圆心距离的横坐标 ly = abs(j - r) # 到圆心距离的纵坐标 l = (pow(lx, 2) + pow(ly, 2)) ** 0.5 # 三角函数 半径 if l < r3: pimb[i - (r - r3), j - (r - r3)] = pima[i, j] return imb def add_decorate(base_pic): try: base_pic = "./base/%s.png" % (str(base_pic)) user_pic = Image.open("/tmp/picture.png").convert("RGBA") temp_basee_user_pic = Image.new('RGBA', (440, 440), (255, 255, 255)) user_pic = user_pic.resize((400, 400), Image.ANTIALIAS) temp_basee_user_pic.paste(user_pic, (20, 20)) temp_basee_user_pic.paste(do_circle(base_pic), (295, 295), do_circle(base_pic)) temp_basee_user_pic.save("/tmp/output.png") return True except Exception as e: print(e) return False def main_handler(event, context): try: print("将接收到的base64图像转为pic") imgData = base64.b64decode(json.loads(event["body"])["pic"].split("base64,")[1]) with open('/tmp/picture.png', 'wb') as f: f.write(imgData) basePic = json.loads(event["body"])["base"] addResult = add_decorate(basePic) if addResult: with open("/tmp/output.png", "rb") as f: base64Data = str(base64.b64encode(f.read()), encoding='utf-8') return return_msg(False, {"picture": base64Data}) else: return return_msg(True, "饰品添加失败") except Exception as e: return return_msg(True, "数据处理异常： %s" % str(e)) def test(): with open("test.png", 'rb') as f: image = f.read() image_base64 = str(base64.b64encode(image), encoding='utf-8') event = { "requestContext": { "serviceId": "service-f94sy04v", "path": "/test/{path}", "httpMethod": "POST", "requestId": "c6af9ac6-7b61-11e6-9a41-93e8deadbeef", "identity": { "secretId": "abdcdxxxxxxxsdfs" }, "sourceIp": "14.17.22.34", "stage": "release" }, "headers": { "Accept-Language": "en-US,en,cn", "Accept": "text/html,application/xml,application/json", "Host": "service-3ei3tii4-251000691.ap-guangzhou.apigateway.myqloud.com", "User-Agent": "User Agent String" }, "body": "{"pic":"%s", "base":"1"}" % image_base64, "pathParameters": { "path": "value" }, "queryStringParameters": { "foo": "bar" }, "headerParameters": { "Refer": "10.0.2.14" }, "stageVariables": { "stage": "release" }, "path": "/test/value", "queryString": { "foo": "bar", "bob": "alice" }, "httpMethod": "POST" } print(main_handler(event, None)) if __name__ == "__main__": test()
在我的目录下还有几个图片文件：
另外这个代码需要依赖pillow，但是我电脑时mac的，pillow又有二进制，所以之前的项目就派上用场了：
Python Package Tool For Tencent Serverless Cloud Function
下载之后，直接放目录下：
然后还需要有一个前端页面，用mui，index页面：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>2020头像大变样 - 头像SHOW - 自豪的采用腾讯云Serverless架构！</title> <meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1,user-scalable=no"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <script type="text/javascript"> thisPic = null function getFileUrl(sourceId) { var url; thisPic = document.getElementById(sourceId).files.item(0) if (navigator.userAgent.indexOf("MSIE") >= 1) { // IE url = document.getElementById(sourceId).value; } else if (navigator.userAgent.indexOf("Firefox") > 0) { // Firefox url = window.URL.createObjectURL(document.getElementById(sourceId).files.item(0)); } else if (navigator.userAgent.indexOf("Chrome") > 0) { // Chrome url = window.URL.createObjectURL(document.getElementById(sourceId).files.item(0)); } return url; } function preImg(sourceId, targetId) { var url = getFileUrl(sourceId); var imgPre = document.getElementById(targetId); imgPre.src = url; imgPre.style = "display: block;"; } function clickChose() { document.getElementById("imgOne").click() } function getNewPhoto() { document.getElementById("result").innerText = "系统处理中，请稍后..." var oFReader = new FileReader(); oFReader.readAsDataURL(thisPic); oFReader.onload = function (oFREvent) { var xmlhttp; if (window.XMLHttpRequest) { // IE7+, Firefox, Chrome, Opera, Safari 浏览器执行代码 xmlhttp = new XMLHttpRequest(); } else { // IE6, IE5 浏览器执行代码 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange = function () { if (xmlhttp.readyState == 4 && xmlhttp.status == 200) { if (JSON.parse(xmlhttp.responseText)["error"]) { document.getElementById("result").innerText = JSON.parse(xmlhttp.responseText)["message"]; } else { document.getElementById("result").innerText = "长按保存图像"; document.getElementById("new_photo").src = "data:image/png;base64," + JSON.parse(xmlhttp.responseText)["message"]["picture"]; document.getElementById("new_photo").style = "display: block;"; } } } var url = " http://service-8d3fi753-1256773370.bj.apigw.tencentcs.com/release/new_year_add_photo_decorate" var obj = document.getElementsByName("base"); var baseNum = "1" for (var i = 0; i < obj.length; i++) { console.log(obj[i].checked) if (obj[i].checked) { baseNum = obj[i].value; } } xmlhttp.open("POST", url, true); xmlhttp.setRequestHeader("Content-type", "application/json"); var postData = { pic: oFREvent.target.result, base: baseNum } xmlhttp.send(JSON.stringify(postData)); } } </script> <!--标准mui.css--> <link rel="stylesheet" href="./css/mui.min.css"> </head> <body> <h3 style="text-align: center; margin-top: 30px">2020头像SHOW</h3> <div class="mui-card"> <div class="mui-card-content"> <div class="mui-card-content-inner"> 第一步：选择一个你喜欢的图片 </div> </div> <div class="mui-content"> <ul class="mui-table-view mui-grid-view mui-grid-9"> <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3"><label> <img src="./base/1.png" width="100%"><input type="radio" name="base" value="1" checked></label></li> <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3"><label> <img src="./base/2.png" width="100%"><input type="radio" name="base" value="2"></label></li> <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3"><label> <img src="./base/11.png" width="100%"><input type="radio" name="base" value="11"></label></li> <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3"><label> <img src="./base/4.png" width="100%"><input type="radio" name="base" value="4"></label></li> <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3"><label> <img src="./base/5.png" width="100%"><input type="radio" name="base" value="5"></label></li> <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3"><label> <img src="./base/6.png" width="100%"><input type="radio" name="base" value="6"></label></li> <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3"><label> <img src="./base/12.png" width="100%"><input type="radio" name="base" value="12"></label></li> <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3"><label> <img src="./base/8.png" width="100%"><input type="radio" name="base" value="8"></label></li> <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3"><label> <img src="./base/3.png" width="100%"><input type="radio" name="base" value="3"></label></li> </ul> </div> </div> <div class="mui-card"> <div class="mui-card-content"> <div class="mui-card-content-inner"> 第二步：上传一张你的头像 </div> <div> <form> <input type="file" name="imgOne" id="imgOne" onchange="preImg(this.id, 'photo')" style="display: none;" accept="image/*"> <center style="margin-bottom: 10px"> <input type="button" value="点击此处上传头像" onclick="clickChose()"/> <img id="photo" src="" width="300px" , height="300px" style="display: none;"/> </center> </form> </div> </div> </div> <div class="mui-card"> <div class="mui-card-content"> <div class="mui-card-content-inner"> 第三步：点击生成按钮获取新年头像 </div> <div> <center style="margin-bottom: 10px"> <input type="button" value="生成新年头像" onclick="getNewPhoto()"/> <p id="result"></p> <img id="new_photo" src="" width="300px" , height="300px" style="display: none;"/> </center> </div> </div> </div> <p style="text-align: center"> 本项目自豪的<br>通过Serverless Framework<br>搭建在腾讯云SCF上 </p> </body> </html>
最后再来一个Yaml：
new_year_add_photo_decorate: component: "@serverless/tencent-scf" inputs: name: myapi_new_year_add_photo_decorate codeUri: ./new_year_add_photo_decorate handler: index.main_handler runtime: Python3.6 region: ap-beijing description: 新年为头像增加饰品 memorySize: 128 timeout: 5 events: - apigw: name: serverless parameters: serviceId: service-8d3fi753 environment: release endpoints: - path: /new_year_add_photo_decorate description: 新年为头像增加饰品 method: POST enableCORS: true param: - name: pic position: BODY required: 'FALSE' type: string desc: 原始图片 - name: base position: BODY required: 'FALSE' type: string desc: 饰品ID myWebsite: component: '@serverless/tencent-website' inputs: code: src: ./new_year_add_photo_decorate/web index: index.html error: index.html region: ap-beijing bucketName: new-year-add-photo-decorate
还有还有我开源的git地址：
https://github.com/anycodes/MyAPICenter
