WPF网络摄像头

Question

我用CatenaLogic.Windows.Presentation.WebcamPlayer读取的视频画面，但是分辨率很低，请问在固定一个窗口下面，分辨率怎么调（譬如1920*1080），怎样将图片保存为较高像素呢？  

Answer 1

前提是你的摄像头支持高分辨率……

Answer 2

罗技的C920

Answer 3

您好，

根据您的问题，我做了一些搜索，发现以下链接中有关于分辨率调整的解决方案：

#WPF Webcam Control part 2
http://blog.catenalogic.com/post/2009/01/08/WPF-Webcam-Control-part-2.aspx

>>分辨率怎么调(譬如1920*1080)

IEnumPins _enumPin; 
_sourceObject.EnumPins(out _enumPin); 
IPin[] _IPP = new IPin[3]; 
int pt = -1; 
_enumPin.Next(3, _IPP, out pt); 
     
IAMStreamConfig st; 
st = (IAMStreamConfig)_IPP[0]; 
     
AMMediaType med = new AMMediaType(); 
st.GetFormat(out med); 
VideoInfoHeader head = (VideoInfoHeader)Marshal.PtrToStructure(med.FormatPtr, typeof(VideoInfoHeader)); 

head.BmiHeader.Width = 960; 
head.BmiHeader.Height = 720; 

Marshal.StructureToPtr(head, med.FormatPtr, false); 
st.SetFormat(med);

>>怎样将图片保存为较高像素

Capture_Executed中添加以下代码：
FileStream stream1 = new FileStream("1.jpg", FileMode.Create); 
JpegBitmapEncoder encoder1 = new JpegBitmapEncoder(); 
 
encoder1.FlipHorizontal = true; 
encoder1.FlipVertical = false; 
encoder1.QualityLevel = 30; 
 
encoder1.Frames.Add(BitmapFrame.Create(Bitmap)); 
encoder1.Save(stream1);

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Answer 4

非常感谢~~~~~