增强相机界面和图像处理逻辑

C3032

2025-12-20 993f7a5e7075b1e66d307e2b300b1f7054895e1f

 LB_VisionProcesses/Cameras/HRCamera.cs

@@ -858,29 +858,38 @@
        /// </summary>
        private void GrabThreadProc()
        {
            IMVDefine.IMV_Frame frame = new IMVDefine.IMV_Frame();

            while (_threadRunning)
            {
                IMVDefine.IMV_Frame frame = new IMVDefine.IMV_Frame();
                try
                {
                    // 获取图像帧
                    int result = _camera.IMV_GetFrame(ref frame, 100);
                    int result = _camera.IMV_GetFrame(ref frame, 1000);

                    if (result == IMVDefine.IMV_OK)
                    {
                        // 处理图像帧
                        ProcessFrame(frame);
                    }
                    else if (result != 0x80000001) // 超时错误代码
                    else
                    {
                        // 非超时错误
                        System.Diagnostics.Debug.WriteLine($"获取图像帧失败，错误码：{result}");
                        // 即使获取失败，也尝试释放帧，防止SDK内部缓存泄露
                        // 注意：frame是每次新建的，如果GetFrame没填充，这里释放应该是安全的（视SDK实现而定）
                        var tempFrame = frame;
                        _camera.IMV_ReleaseFrame(ref tempFrame);

                        if ((uint)result != 0x80000001 && result != -119 && result != -102) // 超时错误代码
                        {
                            // 非超时错误
                            System.Diagnostics.Debug.WriteLine($"获取图像帧失败，错误码：{result}");
                            Thread.Sleep(10); // 出错时稍作等待
                        }
                    }
                }
                catch (Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine($"采集线程异常：{ex.Message}");
                    Thread.Sleep(10);
                }

                Thread.Sleep(1);
@@ -907,15 +916,17 @@
                    // 更新回调图像
                    CallBackImg = bitmap;
                }

                // 释放帧
                var tempFrame = frame;
                _camera.IMV_ReleaseFrame(ref tempFrame);
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine($"处理图像帧失败：{ex.Message}");
            }
            finally
            {
                // 确保无论如何都释放帧，防止缓存占满
                var tempFrame = frame;
                _camera.IMV_ReleaseFrame(ref tempFrame);
            }
        }

        /// <summary>