未曝光的例外：未找到有关此像素格式的信息 [英] Exception unhandeled:No information was found about this pixel format
问题描述
Hello亲爱的程序员，
我正在试图通过这个代码来连接我的kinect。它自己的代码不会消除任何错误，
但是当我连接kinect时它会给我"unhandeled exception"。在行
（int stride = width * format.BitsPerPixel / 8;）
我搜索了很多，但我不明白如何解决它。能帮助我吗。
谢谢，
Houssam
使用系统;
使用System.Collections.Generic;
使用System.Linq;
使用System.Text;
使用System.Threading.Tasks;使用System.Windows
;使用System.Windows.Controls
;
使用System.Windows.Data;
使用System.Windows.Documents;
使用System.Windows.Input;
使用System.Windows.Media;
使用System.Windows.Media.Imaging;使用System.Windows.Navigation
;
使用System.Windows.Shapes;
使用Microsoft.Kinect;
使用System.IO;
名称空间WpfApp5
{
///< summary>
/// MainWindow.xaml的交互逻辑
///< / summary>
public partial class MainWindow：Window
{
private Array pixels;
public MainWindow（）
{
InitializeComponent（）;
KinectSensor _sensor;
MultiSourceFrameReader _reader;
_sensor = KinectSensor.GetDefault（）;
if（_sensor！= null）
{
_sensor.Open（）;
}
_reader = _sensor.OpenMultiSourceFrameReader（FrameSourceTypes.Color |
FrameSourceTypes.Depth |
FrameSourceTypes.Infrared）;
_reader.MultiSourceFrameArrived + = Reader_MultiSourceFrameArrived;
void Reader_MultiSourceFrameArrived（object sender，MultiSourceFrameArrivedEventArgs e）
{
//获取对多帧
var reference = e.FrameReference.AcquireFrame（）的引用;
//使用（var frame = reference.ColorFrameReference.AcquireFrame（））打开颜色框
{
if（frame！= null）
{
//用框架做一些事情......
camera.Source = ToBitmap（frame）;
}
}
//使用开放深度框架
（var frame2 = reference.DepthFrameReference.AcquireFrame（））
{
if（frame2！= null）
{
//对框架执行某些操作...
camera.Source = ToBitmap2（frame2）;
}
}
//使用（var frame1 = reference.InfraredFrameReference.AcquireFrame（））打开红外帧
{
if （frame1！= null）
{
//用框架做一些事情...
camera.Source = ToBitmap3（frame1）;
}
}
}
ImageSource ToBitmap（ColorFrame帧）
{
int width = frame.FrameDescription.Width;
int height = frame.FrameDescription.Height;
byte [] pixels = new byte [width * height *（（PixelFormats.Bgr32.BitsPerPixel + 7）/ 8）];
if（frame.RawColorImageFormat == ColorImageFormat.Bgra）
{
frame.CopyRawFrameDataToArray（pixels）;
}
else
{
frame.CopyConvertedFrameDataToArray（pixels，ColorImageFormat.Bgra）;
}
PixelFormat format = new PixelFormat（）;
int stride = width * format.BitsPerPixel / 8;
返回BitmapSource.Create（宽度，高度，96,96，格式，null，像素，步幅）;
}
ImageSource ToBitmap2（DepthFrame帧）
{
int width = frame.FrameDescription.Width;
int height = frame.FrameDescription.Height;
ushort minDepth = frame.DepthMinReliableDistance;
ushort maxDepth = frame.DepthMaxReliableDistance;
ushort [] depthData = new ushort [width * height];
byte [] pixelData = new byte [width * height *（PixelFormats.Bgr32.BitsPerPixel + 7）/ 8];
frame.CopyFrameDataToArray（depthData）;
int colorIndex = 0;
for（int depthIndex = 0; depthIndex< depthData.Length; ++ depthIndex）
{
ushort depth = depthData [depthIndex];
字节强度=（字节）（深度> = minDepth&& depth< = maxDepth？depth：0）;
pixelData [colorIndex ++] = intensity; //蓝色
pixelData [colorIndex ++] =强度; //绿色
pixelData [colorIndex ++] =强度; //红色
++ colorIndex;
}
PixelFormat format = new PixelFormat（）;
int stride = width * format.BitsPerPixel / 8;
返回BitmapSource.Create（width，height，96,96，format，null，pixelData，stride）;
}
}
private ImageSource ToBitmap3（InfraredFrame frame）
{
int width = frame.FrameDescription.Width;
int height = frame.FrameDescription.Height;
ushort [] infraredData = new ushort [width * height];
byte [] pixelData = new byte [width * height *（PixelFormats.Bgr32.BitsPerPixel + 7）/ 8];
frame.CopyFrameDataToArray（infraredData）;
int colorIndex = 0;
for（int infraredIndex = 0; infraredIndex< infraredData.Length; ++ infraredIndex）
{
ushort ir = infraredData [infraredIndex];
字节强度=（字节）（ir>> 8）;
pixelData [colorIndex ++] = intensity; //蓝色
pixelData [colorIndex ++] =强度; //绿色
pixelData [colorIndex ++] =强度; //红色
++ colorIndex;
}
PixelFormat format = new PixelFormat（）;
int stride = width * format.BitsPerPixel / 8;
返回BitmapSource.Create（宽度，高度，96,96，格式，null，像素，步幅）;
}
private void ColorButton_Click（对象发送者，RoutedEventArgs e）
{
}
private void DepthButton_Click（object sender，RoutedEventArgs e）
{
}
private void InfraredButton_Click（object sender，RoutedEventArgs e）
{
}
}
}
你好weeshoussam，
根据你的描述，你有这个问题在 int stride = width * format.BitsPerPixel / 8 ;但我没有从MSDN文章中获得PixelFormat.BitsPerPixel，你可以看看：
获取此PixelFormat的每像素位数（bpp），您可以使用以下代码：
//创建一个PixelFormat对象。
PixelFormat myPixelFormat = new PixelFormat（）;
//将此PixelFormat设为Gray32Float像素格式。
myPixelFormat = PixelFormats.Gray32Float;
//获取此格式的每像素位数。因为
//格式为"Gray32Float"，返回的浮点值将为32.
int bpp = myPixelFormat.BitsPerPixel;
关于PixelFormat.BitsPerPixel，请查看以下msdn文章：
最好的问候，
Hello dear Programmers,
i am trzing to connect my kinect through out this code belwo. The code by it self doesnot dive any errors,
but when I am connecting the kinect it gives me then "unhandeled exception" on the line
(int stride = width * format.BitsPerPixel / 8;)
I have searched a lot, but I didn't understand how to fix it. can you please help me.
Thanks,
Houssam
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; using Microsoft.Kinect; using System.IO; namespace WpfApp5 { /// <summary> /// Interaction logic for MainWindow.xaml /// </summary> public partial class MainWindow : Window { private Array pixels; public MainWindow() { InitializeComponent(); KinectSensor _sensor; MultiSourceFrameReader _reader; _sensor = KinectSensor.GetDefault(); if (_sensor != null) { _sensor.Open(); } _reader = _sensor.OpenMultiSourceFrameReader(FrameSourceTypes.Color | FrameSourceTypes.Depth | FrameSourceTypes.Infrared); _reader.MultiSourceFrameArrived += Reader_MultiSourceFrameArrived; void Reader_MultiSourceFrameArrived(object sender, MultiSourceFrameArrivedEventArgs e) { // Get a reference to the multi-frame var reference = e.FrameReference.AcquireFrame(); // Open color frame using (var frame = reference.ColorFrameReference.AcquireFrame()) { if (frame != null) { // Do something with the frame... camera.Source = ToBitmap(frame); } } // Open depth frame using (var frame2 = reference.DepthFrameReference.AcquireFrame()) { if (frame2 != null) { // Do something with the frame... camera.Source = ToBitmap2(frame2); } } // Open infrared frame using (var frame1 = reference.InfraredFrameReference.AcquireFrame()) { if (frame1 != null) { // Do something with the frame... camera.Source = ToBitmap3(frame1); } } } ImageSource ToBitmap(ColorFrame frame) { int width = frame.FrameDescription.Width; int height = frame.FrameDescription.Height; byte[] pixels = new byte[width * height * ((PixelFormats.Bgr32.BitsPerPixel + 7) / 8)]; if (frame.RawColorImageFormat == ColorImageFormat.Bgra) { frame.CopyRawFrameDataToArray(pixels); } else { frame.CopyConvertedFrameDataToArray(pixels, ColorImageFormat.Bgra); } PixelFormat format = new PixelFormat(); int stride = width * format.BitsPerPixel / 8; return BitmapSource.Create(width, height, 96, 96, format, null, pixels, stride); } ImageSource ToBitmap2(DepthFrame frame) { int width = frame.FrameDescription.Width; int height = frame.FrameDescription.Height; ushort minDepth = frame.DepthMinReliableDistance; ushort maxDepth = frame.DepthMaxReliableDistance; ushort[] depthData = new ushort[width * height]; byte[] pixelData = new byte[width * height * (PixelFormats.Bgr32.BitsPerPixel + 7) / 8]; frame.CopyFrameDataToArray(depthData); int colorIndex = 0; for (int depthIndex = 0; depthIndex < depthData.Length; ++depthIndex) { ushort depth = depthData[depthIndex]; byte intensity = (byte)(depth >= minDepth && depth <= maxDepth ? depth : 0); pixelData[colorIndex++] = intensity; // Blue pixelData[colorIndex++] = intensity; // Green pixelData[colorIndex++] = intensity; // Red ++colorIndex; } PixelFormat format = new PixelFormat(); int stride = width * format.BitsPerPixel / 8; return BitmapSource.Create(width, height, 96, 96, format, null, pixelData, stride); } } private ImageSource ToBitmap3(InfraredFrame frame) { int width = frame.FrameDescription.Width; int height = frame.FrameDescription.Height; ushort[] infraredData = new ushort[width * height]; byte[] pixelData = new byte[width * height * (PixelFormats.Bgr32.BitsPerPixel + 7) / 8]; frame.CopyFrameDataToArray(infraredData); int colorIndex = 0; for (int infraredIndex = 0; infraredIndex < infraredData.Length; ++infraredIndex) { ushort ir = infraredData[infraredIndex]; byte intensity = (byte)(ir >> 8); pixelData[colorIndex++] = intensity; // Blue pixelData[colorIndex++] = intensity; // Green pixelData[colorIndex++] = intensity; // Red ++colorIndex; } PixelFormat format = new PixelFormat(); int stride = width * format.BitsPerPixel / 8; return BitmapSource.Create(width, height, 96, 96, format, null, pixels, stride); } private void ColorButton_Click(object sender, RoutedEventArgs e) { } private void DepthButton_Click(object sender, RoutedEventArgs e) { } private void InfraredButton_Click(object sender, RoutedEventArgs e) { } } }
Hi weeshoussam,
According to your description, you have this issue at int stride = width * format.BitsPerPixel / 8; but I don't get PixelFormat.BitsPerPixel from MSDN article, you can take a look:
And getting the number of bits-per-pixel (bpp) for this PixelFormat, you can use the following code:
// Create a PixelFormat object. PixelFormat myPixelFormat = new PixelFormat(); // Make this PixelFormat a Gray32Float pixel format. myPixelFormat = PixelFormats.Gray32Float; // Get the number of bits-per-pixel for this format. Because // the format is "Gray32Float", the float value returned will be 32. int bpp = myPixelFormat.BitsPerPixel;
About PixelFormat.BitsPerPixel, please take a look the following msdn article:
Best Regards,
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