tpwc.rar_builder_c builder bmp_上伪色

//--------------------------------------------------------------------------- #include <vcl.h> #pragma hdrstop #include "Unit1.h" //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma resource "*.dfm" TForm1 *Form1; //--------------------------------------------------------------------------- __fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner) { } //--------------------------------------------------------------------------- void __fastcall TForm1::dywc() { Byte * p; int x, y; Graphics::TBitmap * Bmp ; byte gray ; Bmp = new Graphics::TBitmap(); Bmp->Assign(Image2->Picture->Bitmap); Bmp->PixelFormat = pf24bit; for( y = 0 ;y< Bmp->Height ;y++) { p = (Byte *)Bmp->ScanLine[y]; for( x = 0; x< Bmp->Width - 1;x++ ) { gray = (p[x * 3 + 2] * 0.3 + p[x * 3 + 1] * 0.59 + p[x* 3] * 0.11); if ( gray < 63 ) { //伪彩色处理的算法 p[x * 3 + 2] = 0; p[x * 3 + 1] = 254 - 4 * gray; p[x * 3] = 255; } if ( (64 <= gray) && (gray < 127) ) { p[x * 3 + 2] = 0; p[x * 3 + 1] = 4 * gray - 254; p[x * 3] = 510 - 4 * gray; } if ( (128 <= gray) && (gray < 191) ) { p[x * 3 + 2] = 4 * gray - 510; p[x * 3 + 1] = 255; p[x * 3] = 0; } if (192 <= gray) { p[x * 3 + 2] = 255; p[x * 3 + 1] = 1022 - 4 * gray; p[x * 3] = 0; } } } Image2->Picture->Bitmap->Assign(Bmp); } void __fastcall TForm1::BitBtn1Click(TObject *Sender) { dywc(); } //---------------------------------------------------------------------------