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LYW

2021-06-28 cf6a4019e9efbc0503bd3fbcf6f951565d028972

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// NoiseLevel.h: interface for the CNoiseLevel class.
//
//////////////////////////////////////////////////////////////////////
 
#if !defined(AFX_NOISELEVEL_H__5D3B57CE_14F1_4CD6_8D25_25471A55B874__INCLUDED_)
#define AFX_NOISELEVEL_H__5D3B57CE_14F1_4CD6_8D25_25471A55B874__INCLUDED_
 
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
 
 
class CMosisBuffer;
typedef unsigned char BYTE;
 
// 1. FindXNoiseLevel °è¿­·Î Noise¸¦ µ¥ÀÌÅÍ È®º¸.
// 2. RecommendThreshold(1, 2, 3) 3°¡Áö ¹æ¹ýÀ¸·Î Threshold µµÃâ.
 
 
class AFX_EXT_CLASS CNoiseLevel  
{
public:
    int m_TotalCount;
    int    m_OverCount;
    double    m_Ratio;
    int    m_LimitCount;
    int m_pnNoisePixel[256];
    int m_FoundThreshold;
    int    m_Width, m_Height;
 
    void ResetCount()
    {
        for(int i= 0; i< 256; i++)
        {
            m_pnNoisePixel[i]= 0;
        }
        m_TotalCount= 0;
        m_FoundThreshold= -1;
    }
    int GetNoiseCount(int level)
    {
        if(level < 0)
            level= -level;
        ASSERT(level < 256);
        return m_pnNoisePixel[level];
    }
    int CountNoise(int level)
    {
        if(level < 0)
            level= -level;
        ASSERT(level < 256);
        m_pnNoisePixel[level]++;
        m_TotalCount++;
        return m_pnNoisePixel[level];
    }
 
 
public:
    // 1. ³ëÀÌÁî°¡ Å« °ÍºÎÅ͠Ž»öÇØ limitCount º¸´Ù ³ôÀº Á¡ÀÌ ¹ß»ýÇϸé Threshold·Î Ãßõ.. ±ú²ýÇÑ À̹ÌÁö¿¡ ÀûÇÕ.
    int RecommendThreshold1(double fNoiseLimit= 0.001)
    {
        m_LimitCount= (int)(m_TotalCount*fNoiseLimit);
        if(m_LimitCount < 1)
            m_LimitCount= 1;
        return RecommendThreshold(m_LimitCount);
    }
    int RecommendThreshold(int nLimitCount)
    {
        m_OverCount= 0;
        for(int i= 255; i>= 0; i--)
        {
            m_OverCount+= m_pnNoisePixel[i];
            if(m_pnNoisePixel[i] >= nLimitCount)
            {
                m_OverCount-= m_pnNoisePixel[i];
                m_FoundThreshold= i;
                return m_FoundThreshold;
            }
        }
        m_FoundThreshold= 0;
        return 0;
    }
 
    // 2. ³ëÀÌÁî°¡ ÀÛÀº °ÍºÎÅÍ ½ÃÀÛÇØ limitcountÀÌÇϷΠ¶³¾îÁö±â ½ÃÀÛÇϴ Á¡À» Ã£´Â´Ù... ³ëÀÌÁî ¸¹Àº À̹ÌÁö¿¡ ÀûÇÕ.
    int RecommendThreshold2(double fNoiseLimit= 0.001)
    {
        m_OverCount= m_TotalCount;
        m_LimitCount= (int)(m_TotalCount*fNoiseLimit);
        if(m_LimitCount < 1)
            m_LimitCount= 1;
        for(int i= 0; i< 256; i++)
        {
            m_OverCount-= m_pnNoisePixel[i];
            if(m_pnNoisePixel[i] <= m_LimitCount)
            {
                m_FoundThreshold= i;
                return i;
            }
        }
        m_FoundThreshold= 0;
        return 0;
    }
 
    // 3. ³ëÀÌÁî°¡ ³ôÀº ÂÊ¿¡¼­ ºÎÅÍ ´©ÀûÀûÀ¸·ç´Ù°¡ °è»êÇؼ­ limitcount¸¦ ³Ñ´Â ³ðÀ» Threshold·Î Ãßõ. ¾ÈÀü»§¿¡ ÀûÇÕ.
    int RecommendThreshold3(double fNoiseLimit= 0.001)
    {
        m_LimitCount= (int)(m_TotalCount*fNoiseLimit);
        if(m_LimitCount < 1)
            m_LimitCount= 1;
        return RecommendThresholdAccumulative(m_LimitCount);
    }
    // Threshold¸¦ ³·Ãç°¡¸é nNoiseLimet °³¼ö ÀÌ»óÀÇ °áÇÔ Çȼ¿ÀÌ ¹ß»ýÇϸ頱נ¼±À» Threshold·Î ÇÑ´Ù.
    int RecommendThresholdAccumulative(int nLimitCount)
    {
        int nCount= 0;
        for(int i= 255; i>= 0; i--)
        {
            nCount+= m_pnNoisePixel[i];
            if(nCount >= nLimitCount)
            {
                m_OverCount= nCount-  m_pnNoisePixel[i];
                m_FoundThreshold= i;
                return i;
            }
        }
        m_FoundThreshold= 0;
        return 0;
    }
 
public:
    CNoiseLevel()            {ResetCount();}
 
    BOOL FindXNoiseLevel(CMosisBuffer &buffer, double xPitch, BOOL b32= TRUE);
    BOOL FindYNoiseLevel(CMosisBuffer &buffer, double yPitch, BOOL b23= TRUE);
 
    BOOL DrawNoisePixel2Left(CMosisBuffer &buffer, CMosisBuffer &buffer2, double pitch, int threshold, BYTE color, BOOL b32= TRUE);
    BOOL DrawNoisePixel2Right(CMosisBuffer &buffer, CMosisBuffer &buffer2, double pitch, int threshold, BYTE color, BOOL b32= TRUE);
    BOOL DrawNoisePixel2Top(CMosisBuffer &buffer, CMosisBuffer &buffer2, double pitch, int threshold, BYTE color, BOOL b23= TRUE);
    BOOL DrawNoisePixel2Bottom(CMosisBuffer &buffer, CMosisBuffer &buffer2, double pitch, int threshold, BYTE color, BOOL b23= TRUE);
    void DrawNoiseLevel(CDC *pDC);
 
    //////////////////////////////////////////////////////////////////////////
    // Focus Value
    int    CalFocusValue(CMosisBuffer &buffer);
 
};
 
#endif // !defined(AFX_NOISELEVEL_H__5D3B57CE_14F1_4CD6_8D25_25471A55B874__INCLUDED_)