4_code.txt

int level = 0;

void CimageprocessView::OnDraw(CDC* pDC)
{
	CimageprocessDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc)
		return;
	if(level==0)
	mybmp1.Draw(pDC,CPoint(0,0),sizeDibDisplay1);
	else if(level==1)
	{
		mybmp1.Draw(pDC, CPoint(0, 0), sizeDibDisplay1);
		mybmp.Draw(pDC, CPoint(sizeDibDisplay1.cx, 0), sizeDibDisplay);

	}
	else if (level == 2)//灰度化
	{
		mybmp1.Draw(pDC, CPoint(0, 0), sizeDibDisplay1);
		mybmp.Draw(pDC, CPoint(sizeDibDisplay1.cx, 0), sizeDibDisplay);
		mybmp3.Draw(pDC, CPoint(sizeDibDisplay1.cx*2, 0), sizeDibDisplay);
	}
	else if (level==3)//二值化
	{
		mybmp1.Draw(pDC, CPoint(0, 0), sizeDibDisplay1);
		mybmp2.Draw(pDC, CPoint(0, sizeDibDisplay1.cy), sizeDibDisplay2);
		mybmp4.Draw(pDC, CPoint( sizeDibDisplay1.cx+2,0), sizeDibDisplay4);

	}

	else if (level == 5)//点运算
	{
		mybmp1.Draw(pDC, CPoint(0, 0), sizeDibDisplay1);
		mybmp5.Draw(pDC, CPoint(sizeDibDisplay1.cx+2,0), sizeDibDisplay5);
	}
	else if (level == 6)//指数运算
	{
		mybmp1.Draw(pDC, CPoint(0, 0), sizeDibDisplay1);
		mybmp.Draw(pDC, CPoint(sizeDibDisplay1.cx, 0), sizeDibDisplay);
		mybmp6.Draw(pDC, CPoint(sizeDibDisplay1.cx*2,0), sizeDibDisplay6);
	}

	else if (level == 7)//直方图均衡化
	{
		mybmp1.Draw(pDC, CPoint(0, 0), sizeDibDisplay1);
		mybmp.Draw(pDC, CPoint(sizeDibDisplay1.cx, 0), sizeDibDisplay);
		mybmp7.Draw(pDC, CPoint(sizeDibDisplay1.cx * 2, 0), sizeDibDisplay7);
	}
	else if (level == 8)//强度分层法
	{
		mybmp1.Draw(pDC, CPoint(0, 0), sizeDibDisplay1);
		mybmp.Draw(pDC, CPoint(sizeDibDisplay1.cx, 0), sizeDibDisplay);
		mybmp7.Draw(pDC, CPoint(sizeDibDisplay1.cx * 2, 0), sizeDibDisplay7);
		mybmp8.Draw(pDC, CPoint(0,sizeDibDisplay1.cy), sizeDibDisplay8);
	}
	else if (level == 9)//灰度变换法
	{
		mybmp1.Draw(pDC, CPoint(0, 0), sizeDibDisplay1);
		mybmp.Draw(pDC, CPoint(sizeDibDisplay1.cx, 0), sizeDibDisplay);
		mybmp7.Draw(pDC, CPoint(sizeDibDisplay1.cx * 2, 0), sizeDibDisplay7);
		mybmp9.Draw(pDC, CPoint(0, sizeDibDisplay1.cy), sizeDibDisplay9);
	}
	mybmp2.Draw(pDC,CPoint(0,sizeDibDisplay1.cy),sizeDibDisplay2);

	//显示一半尺度
	/*CSize sizeTmp;
	sizeTmp.cx = sizeDibDisplay2.cx/2;
	sizeTmp.cy = sizeDibDisplay2.cy/2;
	mybmp2.Draw(pDC,CPoint(sizeDibDisplay1.cx+10+sizeDibDisplay2.cx+10,0),sizeTmp);*/
}


1.**线性点运算

void CimageprocessView::Onlinear()
{
	// TODO: 在此添加命令处理程序代码

	// 对图象的象素值进行变换
	// 每行
	sizeDibDisplay5 = mybmp1.GetDimensions();
	mybmp5.CreateCDib(sizeDibDisplay5, mybmp1.m_lpBMIH->biBitCount);
	for (int y = 0; y < sizeDibDisplay1.cy; y++)
	{
		// 每列
		for (int x = 0; x < sizeDibDisplay1.cx; x++)
		{
			RGBQUAD color;
			color = mybmp1.GetPixel(x, y);
			//s = ag + b
			double g = color.rgbRed;

			//线性变换参数
			double a;
			double b;

			if (g >= 110)
			{
				a = 2.0;
				b = 0;
				g = a * g + b;

				if (g >= 255)
					g = 255;
			}
			else if (g < 88)
			{
				a = 0.2;
				b = 0;
				g = a * g + b;
			}

			else if (g > 88 && g < 100)
			{
				a = 0.5;
				b = 0;
				g = a * g + b;
			}
			else if (g > 100 && g < 110)
			{
				a = 1.3;
				b = 0;
				g = a * g + b;


			}
			color.rgbBlue = (unsigned char)g;
			color.rgbGreen = (unsigned char)g;
			color.rgbRed = (unsigned char)g;
			mybmp5.WritePixel(x, y, color);
		}
	}
	level = 5;
	Invalidate();
}

2.**指数运算

void CimageprocessView::Onpower()
{
	// TODO: 在此添加命令处理程序代码
	sizeDibDisplay6 = mybmp.GetDimensions();
	mybmp6.CreateCDib(sizeDibDisplay6, mybmp.m_lpBMIH->biBitCount);

	// 对图象的象素值进行变换
	// 每行
	for (int y = 0; y < sizeDibDisplay6.cy; y++)
	{
		// 每列
		for (int x = 0; x < sizeDibDisplay6.cx; x++)
		{
			RGBQUAD color;
			color = mybmp.GetPixel(x, y);
			double g = color.rgbRed;
			double c = 10.0;
			double a = 0.5;
			g = c * pow(g, a);

			color.rgbBlue = (unsigned char)g;
			color.rgbGreen = (unsigned char)g;
			color.rgbRed = (unsigned char)g;
			mybmp6.WritePixel(x, y, color);
		}
	}
	level = 6;
	Invalidate();

}

3.**直方图均衡化

void CimageprocessView::OnHisequa()
{
	// TODO: 在此添加命令处理程序代码
	sizeDibDisplay7 = mybmp.GetDimensions();
	mybmp7.CreateCDib(sizeDibDisplay7, mybmp.m_lpBMIH->biBitCount);
	int count[256];
	int newgray[256];
	for (int i = 0;i < 256;i++)
	{
		count[i] = 0;
		newgray[i] = 0;
	}

	for (int y = 0; y < sizeDibDisplay.cy; y++)
	{
		// 每行
		for (int x = 0; x < sizeDibDisplay.cx; x++)
		{
			RGBQUAD color;
			color = mybmp.GetPixel(x, y);
			int gray = color.rgbBlue;

			count[gray]++;
		}
	}
	for (int i = 0; i < 256; i++)
	{
		int lTemp = 0;
		for (int j = 0; j <= i; j++)
		{
			lTemp += count[j];
		}

		// 计算对应的新灰度值
		newgray[i] = (lTemp * 255.0 / sizeDibDisplay.cy / sizeDibDisplay.cx);
	}

	for (int y = 0; y < sizeDibDisplay.cy; y++)
	{
		// 每行
		for (int x = 0; x < sizeDibDisplay.cx; x++)
		{
			RGBQUAD color;
			color = mybmp.GetPixel(x, y);
			int gray = newgray[color.rgbBlue];
			color.rgbBlue = (unsigned char)gray;
			color.rgbGreen = (unsigned char)gray;
			color.rgbRed = (unsigned char)gray;
			mybmp7.WritePixel(x, y, color);
		}
	}
	level =7;
	Invalidate();
}
4. **强度分层法

void CimageprocessView::Onhierarchycolor()
{
	
	sizeDibDisplay8= mybmp7.GetDimensions();
	mybmp8.CreateCDib(sizeDibDisplay8, mybmp7.m_lpBMIH->biBitCount);
	int graylevel =5;
	RGBQUAD *color_tab = new RGBQUAD[graylevel + 1];
	srand((unsigned int)time(NULL));
	for (int i = 0; i <= graylevel; i++)
	{
		color_tab[i].rgbBlue = (unsigned char)rand() % 255;
		color_tab[i].rgbGreen = (unsigned char)rand() % 255;
		color_tab[i].rgbRed = (unsigned char)rand() % 255;
	}

	// 对图象的象素值进行变换
	for (int x = 0; x < sizeDibDisplay1.cx; x++)
	{
		for (int y = 0; y < sizeDibDisplay1.cy; y++)
		{
			RGBQUAD color;
			color = mybmp7.GetPixel(x, y);

			int level = color.rgbBlue / 25;         //对255个灰度等级的图像，分六种颜色
			mybmp8.WritePixel(x, y, color_tab[level]);
		}
	}
	level = 8;
	Invalidate();
}

**灰度变换法：

void CimageprocessView::OnDensitranscolor()
{
	// TODO: 在此添加命令处理程序代码
	sizeDibDisplay9 = mybmp7.GetDimensions();
	mybmp9.CreateCDib(sizeDibDisplay9, mybmp7.m_lpBMIH->biBitCount);
	for (int x = 0; x < sizeDibDisplay9.cx; x++)
	{
		for (int y = 0; y < sizeDibDisplay9.cy; y++)
		{
			RGBQUAD color, color1;
			color1 = mybmp7.GetPixel(x, y);

			color.rgbRed = (int)((color1.rgbRed * 2 + 80) / 1 + 200);
			color.rgbGreen = (int)((color1.rgbGreen * 4 + 120) / 3 + 20);
			color.rgbBlue = (int)((color1.rgbBlue + 40) / 2 + 10);
			mybmp9.WritePixel(x, y, color);
		}
	}
	level = 9;
	Invalidate();
}