如何将新的字节数组转换为图像 [英] How Can I Convert My new Byte Array To Image

问题描述

我已编写此代码用于提取图像的bitplane1。但我有例外

i have write this code for extracting bitplane1 of my image . but i have exception

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Collections;


namespace bitplane
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)

        {
          //  Image grayImage;
            OpenFileDialog o = new OpenFileDialog();
            o.ShowDialog();
   
            byte[] x = File.ReadAllBytes(o.FileName);
        
            byte maskbyte1 = 2;
            int [] newpix= new int [x.Length];
      for (int i = 0; i < x.Length; i++)
           {


               newpix[i] = x[i] & maskbyte1;

               string px=newpix[i].ToString();
     

              x[i] = Convert.ToByte(px);
              
        }
            MemoryStream ms = new MemoryStream(x);
            Image myImage = Image.FromStream(ms);

        myImage.Save(@"C:\Users\Public\Pictures\Sample Pictures\New folder\fgh.jpg");
        }
    }
}

推荐答案

使用httphandler中的以下代码将字节数组转换为图片

use the below code in httphandler to convert byte array to image

context.Response.ContentType = "image/jpeg";//get image content type of selected file
Stream strm = new MemoryStream(x);
byte[] buffer = new byte[4096];
int byteSeq = strm.Read(buffer, 0, 4096);
while (byteSeq > 0)
{
  context.Response.OutputStream.Write(buffer, 0, byteSeq);
  byteSeq = strm.Read(buffer, 0, 4096);
}

您使用的方法正确，但只有两行与 MemoryStream相关以及从文件中读取字节的片段。其他一切都是我无法理解的一些胡言乱语。扔掉它，你将有一个有效的解决方案。如果您遇到问题，请使用调试器。

-SA

You are using correct approach, but only in two lines related to MemoryStream and the fragment where you read bytes from a file. Everything else is some gibberish I cannot understand. Throw it out and you will have a working solution. If you have some problems, use the debugger.

—SA

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