我正在使用asp.net 4.0的JQuery网络摄像头插件。我想捕获图像并将其保存在服务器上。我到达了可以看到网络摄像头的位置,点击照片并将其发送到服务器端。但我不明白如何在服务器上保存该发布的图像。
我尝试将InputStream保存到文件中,但它说的是无效的图像。请帮忙。
aspx代码
<script type="text/javascript">
$(function () {
$("#webcam").webcam({
width: 100,
height: 100,
mode: "save",
swffile: 'jscam.swf'
});
});
function capture() {
webcam.capture();
webcam.save('SavePhoto.aspx');
}
</script>
<div id="webcam"></div>
<input type="button" id="takePhoto" onclick="capture();" value="Capture" />
答案 0 :(得分:0)
经过大量搜索,我最终得到了这个解决方案。只需将Request.InputStream
传递给该函数即可。在我的情况下,我必须创建一个缩略图副本,所以我需要System.Drawing.Image
Public Function getImage(SrcStream As System.IO.Stream) As System.Drawing.Image
'This function returns Image from InputStream
Dim dump As String
Using reader = New StreamReader(SrcStream)
dump = reader.ReadToEnd()
End Using
''To save as a file.
'Dim path = Server.MapPath("/test.jpg")
'System.IO.File.WriteAllBytes(path, String_To_Bytes2(dump))
Return System.Drawing.Image.FromStream(New System.IO.MemoryStream(String_To_Bytes2(dump)))
End Function
Private Function String_To_Bytes2(strInput As String) As Byte()
Dim numBytes As Integer = (strInput.Length) / 2
Dim bytes As Byte() = New Byte(numBytes - 1) {}
For x As Integer = 0 To numBytes - 1
bytes(x) = Convert.ToByte(strInput.Substring(x * 2, 2), 16)
Next
Return bytes
End Function
(希望你能把它转换成c#)