将字节数组转换为图像

时间:2017-08-30 06:24:13

标签: c#

我正在尝试从智能卡读卡器获取图像。它带有一个示例C#解决方案,显示卡的信息和持卡人的肖像。不幸的是,肖像永远不会出现。它实际上写入了一个包含以下内容的文件:

@Value("\${some.property.key:}")
lateinit var foo:String

它有一些以下文字:

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代码:

Copyright (c) 1998 Hewlett-Packard Company  desc       sRGB IEC61966-2.1           sRGB IEC61966-2.1   

我试过的方法:

cmdSelect = new APDUCmd(0x00, 0xA4, 0x00, 0x00, new byte[] { 0x3F, 0x00 }, 0x00);
cmdResponse = cardOri.Transmit(cmdSelect);
cmdSelect = new APDUCmd(0x00, 0xA4, 0x04, 0x00, new byte[] { 0x49, 0x44 }, 0x00);
cmdResponse = cardOri.Transmit(cmdSelect);
cmdSelect = new APDUCmd(0x00, 0xA4, 0x02, 0x00, new byte[] { 0x01, 0x01 }, 0x00);
cmdResponse = cardOri.Transmit(cmdSelect);
cmdSelect = new APDUCmd(0x00, 0xA4, 0x02, 0x00, new byte[] { 0x01, 0x02 }, 0x00);
cmdResponse = cardOri.Transmit(cmdSelect);
List<string> picData = new List<string>();
List<byte> picData1 = new List<byte>();
List<byte> picData2 = new List<byte>();
int j = 0x05;
int i = 0x00;
string sst = string.Empty;
int p1_first = 0x00;
int p2_first = 0x00;
int p1_end = 0x00;
int p2_end = 0x00;
int count = 0;

while (i <= 0x30)
{

    count++;
    try
    {

        cmdSelect = new APDUCmd(0x00, 0xB0, (byte)i, (byte)j, null, 0xFF);
        cmdResponse = cardOri.Transmit(cmdSelect);
        if (cmdResponse.Data != null)
        {
            picData1.AddRange(cmdResponse.Data);
        }
        else
        {
            p1_first = i - 1;
            p2_first = j + 1;

            byte[] ddd = null;
            while (true)
            {

                j--;
                cmdSelect = new APDUCmd(0x00, 0xB0, (byte)i, (byte)j, null, 0xFF);
                cmdResponse = cardOri.Transmit(cmdSelect);

                if (cmdResponse.Data != null)
                {
                    ddd = cmdResponse.Data;
                    picData2.AddRange(ddd);
                    p1_end = i;
                    p2_end = j;
                    break;
                }
                else
                {
                    //  break;
                }
                if (j <= 0x00)
                {
                    i--;
                    j = 0xFF;
                }
            }
            break;
        }

    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
        DisConnect();
        break;
    }
    j = j + 0xFF;
    if (j > 0xFF)
    {
        i++;
        j = j - 0x100;
    }

}
int len = 0;
if (p1_first == p1_end)
{
    if (p2_first > p2_end)
    {
        len = 255 - (p2_first - p2_end);
    }
    else
    {
        len = 255 - (p2_end - p2_first);
    }
}
else
{
    if (p2_first > p2_end)
    {
        len = p2_first - p2_end - 1;
    }
    else
    {
        len = p2_end - p2_first - 1;
    }

}


int k = 0;
for (int l = len; l < 255; l++)
{
    picData1.Add(picData2[l]);
    k++;
}

File.WriteAllBytes("pic.txt", picData1);

我应该如何将字节arrey转换为图像?

1 个答案:

答案 0 :(得分:0)

如果你正确理解了你的问题,你想要从读卡器到你的电脑的图像,然后尝试这个

byte[] ArrayOfBytesOfYourImage= System.IO.File.ReadAllBytes(Path); //Path your image file in sd card
System.IO.File.WriteAllBytes(@"Your path you want to save with extenction for example C:\Foo.jpeg", ArrayOfBytesOfYourImage);

如果您没有图像但只有字节。然后你不需要第一行。