[問題] OpenCV結合VS元件

看板C_and_CPP (C/C++)作者tyc5116 (累人啊....)時間13年前 (2012/11/26 17:09)推噓0(0推 0噓 4→)

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開發平台(Platform): (Ex: VC++, GCC, Linux, ...) VC++ 額外使用到的函數庫(Library Used): (Ex: OpenGL, ...) OpenCV 問題(Question)： Data怪怪的程式碼(Code)：(請善用置底文網頁, 記得排版) 簡化一下架構,如下 class ImgProc{ public: ... private: IplImage* Image; //彩色圖 IplImage* Image_Gray; //灰階圖 IplImage* Image_Handle; //目前作完影像處理的圖 cv::Mat MatImage; //對應圖像的矩陣,以下皆是 cv::Mat MatImageGray; cv::Mat MatHandleImage; ... }; 要將讀進來的圖示透過OpenCV函式,顯示在PictureBox上 (圖的大小為281*500,存檔時存成BMP 24bit) 首先先執行到兩行程式碼 this->Image = cvLoadImage(this->FileName.c_str(),CV_LOAD_IMAGE_COLOR); this->Image_Gray = cvLoadImage( this->FileName.c_str(),CV_LOAD_IMAGE_GRAYSCALE); 將讀的檔案分別存成彩色和灰階 google到的作法(只要注意標色的部份即可) this->ImgObject->SetImgFileName(this->m_ofdOpenFileDia->FileName); string FileName; MarshalString(this->ImgObject->GetImgFileName(),FileName); IplImage *image1 = cvLoadImage(FileName.c_str()); System::Drawing::Bitmap^ Img = gcnew System::Drawing::Bitmap( this->ImgObject->GetImage()->width, //281 this->ImgObject->GetImage()->height, //500 this->ImgObject->GetImage()->widthStep, //844 System::Drawing::Imaging::PixelForm[Bat::Format24bppRgb, (System::IntPtr)this->ImgObject->GetImage()->imageData ); this->m_PicDetect->Image = Img; 顯示灰階圖的時候,將標色的部份改成 System::Drawing::Imaging::PixelFormat::Format8bppIndexed, 再來我不懂的是,這樣顯示會有問題,還要再加上 Drawing::Imaging::ColorPalette ^palette = Img->Palette; for( int i=0; i<256; i++) palette->Entries[i] = Color::FromArgb(i,i,i); Img->Palette = palette; this->m_PicDetect->Image = Img; 不懂為何一定要再加上這一段,結果才會正常 (灰階的width,height,widthStep分別為281,500,284) 以及開始作影像處理時(以Smooth為例) cv::Mat MSmooth(this->ImgObject->GetGrayImageM()); CvMat src = this->ImgObject->GetGrayImageM(); CvMat dsc = MSmooth; cvSmooth(&src,&dsc,CV_GAUSSIAN); this->ImgObject->SetHandleImageM(MSmooth); //cv::imshow("My Window",this->ImgObject->GetHandleImageM()); //這一行結果是正常的該函式內容為 void ImgProc::SetHandleImageM(cv::Mat Mat){ this->MatHandleImage = Mat; if (this->Image_Handle != NULL || this->Image_Handle!=0){ delete this->Image_Handle; this->Image_Handle = new IplImage(Mat); } else this->Image_Handle = new IplImage(Mat); } System::Drawing::Bitmap^ Img = gcnew System::Drawing::Bitmap( this->ImgObject->GetHandleImage()->width, //281 this->ImgObject->GetHandleImage()->height, //500 this->ImgObject->GetHandleImage()->widthStep, //281,變了 System::Drawing::Imaging::PixelFormat::Format8bppIndexed, (System::IntPtr)this->ImgObject->GetHandleImage()->imageData ); 看起來是widthStep值變了,造成錯誤,請問值為什麼會作變化? 以上兩個問題,再麻煩解答一下,謝謝 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ※ 編輯: tyc5116 來自: 220.134.238.4 (11/26 17:18)