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  1. unsigned char* ptr = 0;
  2.   int R=0,G=0,B=0;
  3.   int R1=0,B1=0,G1=0;
  4.   for (int Y=0;Y<this->Image1->Height;Y++)
  5.   {
  6.     ptr = static_cast<unsigned char*>(this->Image1->Picture->Bitmap->ScanLine[Y]);
  7.     for (int X=0;X<this->Image1->Width;X++)
  8.     {
  9.       B = ptr[3*X];
  10.       G = ptr[3*X+1];
  11.       R = ptr[3*X+2];
  12.  
  13.       ptr[3*X] = 0.299*R + 0.587*G + 0.114* B;
  14.       ptr[3*X+1] = ptr[3*X+2] = ptr[3*X];
  15.     }
  16.   }
  17.   this->Image1->Refresh();
  18.   for (int Y=0;Y<this->Image2->Height;Y++)
  19.   {
  20.     ptr = static_cast<unsigned char*>(this->Image2->Picture->Bitmap->ScanLine[Y]);
  21.     for (int X=0;X<this->Image2->Width;X++)
  22.     {
  23.       B = ptr[3*X];
  24.       G = ptr[3*X+1];
  25.       R = ptr[3*X+2];
  26.  
  27.       /*
  28.       B1 = GetBValue(this->Image2->Canvas->Pixels[X][Y]);
  29.       G1 = GetGValue(this->Image2->Canvas->Pixels[X][Y]);
  30.       R1 = GetRValue(this->Image2->Canvas->Pixels[X][Y]);
  31.       if (B!= B1 || G!= G1 || R!= R1)
  32.         int a=0;  //為了下中斷點看RGB值使用
  33.       */
  34.  
  35.       ptr[3*X] = 0.299*R + 0.587*G + 0.114* B;
  36.       ptr[3*X+1] = ptr[3*X+2] = ptr[3*X];
  37.     }
  38.   }
  39.   this->Image2->Refresh();
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https://ideone.com/vNZw5k
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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