我现在有一个学校项目正在进行,问题是从mediafiledialog中选择图像并将它们裁剪为特定大小。
这就是我到目前为止所做的事情:
//Selecting images to crop
private void individualCropedImagesOpenClick(object sender, RoutedEventArgs e)
{
// First clean up existing tracking
StopTracking();
var image_files = openMediaDialog(true);
ImageReader reader = new ImageReader(image_files, fx, fy, cx, cy);
processing_thread = new Thread(() => ProcessIndividualImages(reader));
processing_thread.Start();
String filename = @"C:\Fotos\";
FileStream masterImage = new FileStream(filename + DateTime.Now.ToString("yyyyMMdd_hhmmss") +"CROPPED" + ".jpg", FileMode.Create);
// Create an Image element.
Image croppedImage = overlay_image;
croppedImage.Width = 200;
croppedImage.Margin = new Thickness(5);
// Create a CroppedBitmap based off of a xaml defined resource.
CroppedBitmap cb = new CroppedBitmap(
(BitmapSource)this.Resources["masterImage"],
new Int32Rect(30, 20, 105, 50)); //select region rect
croppedImage.Source = cb; //set image source to cropped
}
我知道我犯了一些错误但却不知道是什么。我的目标是使用开源面部检测在人处于正确位置时拍照,然后将图像裁剪为ID大小。计算机已经拍摄了图片并且工作正常,但无法裁剪。
ERROR消息是'返回null'并且在行
CroppedBitmap cb = new CroppedBitmap(
(BitmapSource)this.Resources["masterImage"],
new Int32Rect(30, 20, 105, 50))
希望这是可以理解的......
提前感谢您的帮助!
答案 0 :(得分:0)
几乎忘了说,它已经完成,所以不再需要帮助了,谢谢!!