どのようにSystem :: Drawing :: Image ^をunsigned charに変換する

Question

debayering関数のためにImage ^をunsigned charに変換する必要があります。
コード：

void ConvertBayer8ToBGR(VmbUchar_t* bayerImgDat, VmbUchar_t* bgrOutputDat) 
{ 
VmbUchar_t* newimagedata_start = bgrOutputDat; 

int currentTempIndex = 0; 
int nearestBluesAvg = 0; 
int nearestRedsAvg = 0; 
int nearestGreensAvg = 0; 

for(int j = 0; j < 1100; j++) 
{ 
    for(int i = 0; i < 2752; i++) //G R G R G... 
    { 
     if(currentTempIndex % 2 == 0 /* even, green */) 
     { 
      //avg blue 
      if(j == 0) //if in the first row, only take next blue 
      { 
       nearestBluesAvg = *(bayerImgDat+currentTempIndex+2752); 
      } 
      else 
      { 
       nearestBluesAvg = (*(bayerImgDat + currentTempIndex + 2752) + *(bayerImgDat+currentTempIndex-2752))/2; 
      } 
      *bgrOutputDat = nearestBluesAvg; //b 
      bgrOutputDat++; 
      *bgrOutputDat = *(bayerImgDat + currentTempIndex); //g 
      bgrOutputDat++; 
      //avg red 
      if(i == 0) //if in first column, only take next red 
      { 
       nearestRedsAvg = *(bayerImgDat+currentTempIndex+1); 
      } 
      else 
      { 
       nearestRedsAvg = ((*(bayerImgDat+currentTempIndex+1)) + (*(bayerImgDat+currentTempIndex-1)))/2; 
      } 
      *bgrOutputDat = nearestRedsAvg; //r 
      bgrOutputDat++; 

      currentTempIndex++; 
     } 
     else /* odd, red*/ 
     { 
      //avg blue 
      if(i == 1099) //if in last column, take just left-down blue pixel 
      { 
       nearestBluesAvg = *(bayerImgDat+currentTempIndex-1+2752); 
      } 
      else // else take both left-down and right-down 
      { 
       nearestBluesAvg = (*(bayerImgDat+currentTempIndex+1+2752) + *(bayerImgDat+currentTempIndex-1+2752))/2; 
      } 
      *bgrOutputDat = nearestBluesAvg; //b 
      bgrOutputDat++; 
      //avg green 
      nearestGreensAvg = (*(bayerImgDat+currentTempIndex-1) + *(bayerImgDat+currentTempIndex+2752))/2; 
      *bgrOutputDat = nearestGreensAvg; //g 
      bgrOutputDat++; 
      *bgrOutputDat = *(bayerImgDat + currentTempIndex); //r 
      bgrOutputDat++; 

      currentTempIndex++; 
     } 
    } 
    for(int i = 0; i < 2752; i++)//B G B G B G B.... 
    { 
     if(currentTempIndex % 2 == 0 /* even, blue */) 
     { 

      *bgrOutputDat = *(bayerImgDat + currentTempIndex); //b 
      bgrOutputDat++; 
      //avg green 
      nearestGreensAvg = (*(bayerImgDat + currentTempIndex + 1) + *(bayerImgDat + currentTempIndex -2752))/2; 
      *bgrOutputDat = nearestGreensAvg; //g 
      bgrOutputDat++; 
      //avg red 
      if(i == 0) //if first column, take only right-up pixel 
      { 
       nearestRedsAvg = *(bayerImgDat+currentTempIndex+1-2752); 
      } 
      else //else take both left-up and right-up pixels 
      { 
       nearestRedsAvg = (*(bayerImgDat+currentTempIndex-1-2752) + *(bayerImgDat+currentTempIndex+1-2752))/2; 
      } 
      *bgrOutputDat = nearestRedsAvg; //r 
      bgrOutputDat++; 

      currentTempIndex++; 

     } 
     else /* odd, green*/ 
     { 
      //avg blue 
      if(i == 2751) //if in last column, only take previous blue (next blue doesnt exist) 
      { 
       nearestBluesAvg = *(bayerImgDat + currentTempIndex - 1); 
      } 
      else //else take both next and previous 
      { 
       nearestBluesAvg = (*(bayerImgDat+currentTempIndex+1) + *(bayerImgDat+currentTempIndex-1))/2; 
      } 
      *bgrOutputDat = nearestBluesAvg; //b 
      bgrOutputDat++; 
      *bgrOutputDat = *(bayerImgDat + currentTempIndex); //g 
      bgrOutputDat++; 
      //avg red 
      if(j == 1099) //if in last row, only take previous red (next red doesn't exist) 
      { 
       nearestRedsAvg = *(bayerImgDat+currentTempIndex-2752); 
      } 
      else //else take both 
      { 
       nearestRedsAvg = (*(bayerImgDat+currentTempIndex+2752) + *(bayerImgDat+currentTempIndex-2752))/2; 
      } 
      *bgrOutputDat = nearestRedsAvg; //r 
      bgrOutputDat++; 

      currentTempIndex++; 
     } 
    } 
} 


bgrOutputDat = newimagedata_start; 

}

誰かが私にはunsigned char型へのイメージ^を変えるのを助ける、または入力として^画像を使用するには、この機能を書き換えることはできますか？

おかげで、 ndrew

Answer 1

あなたはビットマップのピクセルデータへのアクセスを取得する必要があります。 Imageでこれを行う最善の方法は、BitmapサブクラスでLockBitsメソッドを使用することです。このようなもの（Imageが実際にはBitmapであることを前提とします）：

auto bmp = dynamic_cast<Bitmap^>(image); 
Rectangle rect(0, 0, bmp->Width, bmp->Height); 
auto bmpData = bm->LockBits(rect, System::Drawing::Imaging::ImageLockMode::ReadOnly); 
VmbUchar_t* bayerImgDat = reinterpret_cast<VmbUchar_t*>(bmpData->Scan0.ToPointer()); 
VmbUchar_t* bgrOutputDat = // need to allocate 
ConvertBayer8ToBGR(bayerImgDat, bgrOutputDat);