pseudocolor1.cpp

图像处理基础知识编写的这些程序对新手非常有帮助！4) 对图像进行离散余弦变换处理（图像变换）的源代码

#define EXTRA_NAME "@physicpseudocolor."
#include "loadbmp.h"

#define Point(x,y) lpPoints[(x)+(y)*nWidth]

void PseudoColor_physic()
{
	int x,y;
	BYTE *lpPoints=new BYTE[nWidth*nHeight];
	GetPoints(lpPoints);
	BYTE b,R,G,B;
	for(y=0;y<nHeight;y++)
	{
		for(x=0;x<nWidth;x++)
		{
			b=Point(x,y);
			if (b<64)
			{
				B=255;
				G=4*b;
				R=0;
			}
			else if (b<128)
			{
				B=(127-b)*4;
				G=255;
				R=0;
			}
			else if (b<192)
			{
				B=0;
				G=255;
				R=(b-128)*4;
			}
			else
			{
				B=0;
				G=(255-b)*4;
				R=255;
			}
			lpBits[x*3+nByteWidth*y]=B;
			lpBits[x*3+1+nByteWidth*y]=G;
			lpBits[x*3+2+nByteWidth*y]=R;
		}
	}
	delete lpPoints;
}

void main(int argc, char *argv[])
{
	if(argc==2)
		FileName=argv[1];
	else
		return;	
	OpenFile();
	PseudoColor_physic();
	SaveAs();
}