JavaScript 图片与Base64数据互相转换脚本 注: 转换过程中注意跨域问题.测试页是否支持相关标签创建.dom结构. 方法一:非Html 5使用FileReader 使用XMLHttpRequest将图像加载为blob,接着使用FileReader API将其转换为dataURL. function toDataURL(url, callback) { var xhr = new XMLHttpRequest(); xhr.onload = function() { var read…
图片转换为base64编码 <input type = "file" id = "file" onchange="popFileName(this)" multiple = "multiple" name="点我上传"/> <div id="imgContainer"></div> <script src="C:\Users\bt.cn…
<!doctype html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta name="viewport" content="width=device-width, initial-sc…
using System; using System.Collections.Generic; using System.Drawing; using System.IO; using System.Linq; using System.Web; using System.Drawing.Imaging; // 博客园 aC#Coder 整理 namespace Html5Image.Tools { public class ImageTool { //图片 转为 base64编码的文本 pub…
//保存目录 string dir = "/upload/user/head"; //站点文件目录 string fileDir = HttpContext.Current.Server.MapPath("~" + dir); //文件名称 string fileName = "headdemo" + DateTime.Now.ToString("yyyyMMddHHmmssff"); //保存文件所在站点位置 string…
程序 # coding=gbk from PIL import Image import numpy as np # import scipy import matplotlib.pyplot as plt def ImageToMatrix(filename): # 读取图片 im = Image.open(filename) # 显示图片 # im.show() width,height = im.size im = im.convert("L") data = im.getdat…
public static Bitmap GetImageFromBase64String(string strBase) { try { MemoryStream stream = new MemoryStream(Convert.FromBase64String(strBase)); Bitmap bitmap = new Bitmap(stream); return bitmap; } catch(Exception ex) { return null; } } public static…
public static Bitmap GetImageFromBase64String(string strBase) { try { MemoryStream stream = new MemoryStream(Convert.FromBase64String(strBase)); Bitmap bitmap = new Bitmap(stream); return bitmap; } catch(Exception ex) { return null; } } public static…
ASP图片格式与base64数据相互转换的方法,经常用于处理表单中存储有base64字符串格式的图片. 获取到base64数据,转换成图片 <% Subfolder=year(now)&month(now)&day(now)&hour(now)&minute(now)&second(now()) ''生成当天的子文件夹的名称 picture=Trim(request.Form("urls")) picture=replace(picture…
js将图片转化为base64 参考地址:http://www.cnblogs.com/mr-wuxiansheng/p/6931077.html var img = "imgurl";//imgurl 就是你的图片路径 function getBase64Image(img) { var canvas = document.createElement("canvas"); canvas.width = img.width; canvas.height = img.h…