/// <summary>
/// 事件：鼠标点击后事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Slider_PreviewMouseUp(object sender, MouseButtonEventArgs e)
{
CurrThresholdValue = (int)(sender as Slider).Value;
vm = DataContext as MainViewModel;
// 计时开始
vm._watch = Stopwatch.StartNew();
CVAlgorithms.CvpThreshold(OldBmpInfo.data, vm.CurrBmp.Width, vm.CurrBmp.Height, OldBmpInfo.step, CurrThresholdValue, 255, (int)CurrThresholdType, ref CurrImgInfo);
byte[] imagePixels = new byte[CurrImgInfo.size];
Marshal.Copy(CurrImgInfo.data, imagePixels, 0, CurrImgInfo.size);
vm.CurrBitmapImage = ImageEx.ByteToBitmapImage(imagePixels);
// 释放内存
CVAlgorithms.ReleaseMemUseFree(CurrImgInfo.data);
// 计时结束
vm._watch.Stop();
vm.StatusText = "Execution time: " + vm._watch.ElapsedMilliseconds + " ms.";
}
/// <summary>
/// 事件：下拉框选择事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Cb_method_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
string item = (e.AddedItems[0] as ComboBoxItem).Content as string;
Enum.TryParse(item, out CurrThresholdType);
vm = DataContext as MainViewModel;
if (null != vm) // 防止第一次加载没初始化视图模型的情况
{
// 计时开始
vm._watch = Stopwatch.StartNew();
CVAlgorithms.CvpThreshold(OldBmpInfo.data, vm.CurrBmp.Width, vm.CurrBmp.Height, OldBmpInfo.step, CurrThresholdValue, 255, (int)CurrThresholdType, ref CurrImgInfo);
byte[] imagePixels = new byte[CurrImgInfo.size];
Marshal.Copy(CurrImgInfo.data, imagePixels, 0, CurrImgInfo.size);
vm.CurrBitmapImage = ImageEx.ByteToBitmapImage(imagePixels);
// 释放内存
CVAlgorithms.ReleaseMemUseFree(CurrImgInfo.data);
// 计时结束
vm._watch.Stop();
vm.StatusText = "Execution time: " + vm._watch.ElapsedMilliseconds + " ms.";
}
}