FH98ViewOnPlaneSoftware/Src/QB_ImgProcessFun/IntensityControl.cpp

#include "stdafx.h"
#include "IntensityControl.h"


// ͨ<><CDA8><EFBFBD>鱨<EFBFBD>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD><EFBFBD>ȿ<EFBFBD><C8BF><EFBFBD>
bool QBStruIntensityControl(QBStru *qbData, int degree, bool bSrcFirst)
{
	try
	{
		// <20><>ֵ<EFBFBD>ж<EFBFBD>
		if (qbData == NULL)
		{
			return false;
		}

		// ͼ<><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>ֱ<EFBFBD>ӷ<EFBFBD><D3B7><EFBFBD>false
		if (qbData->image.bValid == false) 
		{
			return false;
		}

		// <20><><EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD>srcImg
		if (bSrcFirst == true)
		{
			if (qbData->image.srcImg.buff != NULL &&
				qbData->image.srcImg.ImgWidth  > 0 && 
				qbData->image.srcImg.ImgHeight > 0 && 
				(qbData->image.srcImg.bitcount == 24 || qbData->image.srcImg.bitcount == 8))
			{
				return ImgStruIntensityControl(&qbData->image.srcImg, &qbData->image.dstImg, degree);
			}
			else
				if (qbData->image.dstImg.buff != NULL &&
					qbData->image.dstImg.ImgWidth  > 0 && 
					qbData->image.dstImg.ImgHeight > 0 && 
					(qbData->image.dstImg.bitcount == 24 || qbData->image.dstImg.bitcount == 8))
				{
					return ImgStruIntensityControl(&qbData->image.dstImg, &qbData->image.dstImg, degree);
				}
				else 
				{
					return false;
				}
		}
		else
		{
			// <20>ȿ<EFBFBD>dstImg<6D>Ƿ<EFBFBD><C7B7><EFBFBD>Ч
			if (qbData->image.dstImg.buff != NULL &&
				qbData->image.dstImg.ImgWidth  > 0 && 
				qbData->image.dstImg.ImgHeight > 0 && 
				(qbData->image.dstImg.bitcount == 24 || qbData->image.dstImg.bitcount == 8))
			{
				return ImgStruIntensityControl(&qbData->image.dstImg, &qbData->image.dstImg, degree);
			}
			else
				if (qbData->image.srcImg.buff != NULL &&
					qbData->image.srcImg.ImgWidth  > 0 &&
					qbData->image.srcImg.ImgHeight > 0 && 
					(qbData->image.srcImg.bitcount == 24 || qbData->image.srcImg.bitcount == 8))
				{
					return ImgStruIntensityControl(&qbData->image.srcImg, &qbData->image.dstImg, degree);
				} 
				else 
				{
					return false;
				}
		}

		return true;
	}
	catch(cv::Exception &e)
	{
		e.msg;
		return false;
	}
	catch(...)
	{
		return false;
	}
}


// ImgStru<72>ṹ<EFBFBD>µ<EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD>ȿ<EFBFBD><C8BF><EFBFBD>
//<2F><><EFBFBD>ܣ<EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD>ȿ<EFBFBD><C8BF><EFBFBD>
bool ImgStruIntensityControl(ImgStru* src, ImgStru* dst, int degree)
{
	try
	{
		// src dst <20><>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD>֤
		if (src == NULL  || dst ==NULL ||
			src->ImgWidth <=0   ||
			src->ImgHeight <= 0 ||
			src->bitcount <= 0   ||
			src->buff == NULL)
		{
			return false;
		}

		if(src->bitcount != 8 && src->bitcount != 24)
		{
			return false;
		}

		// <20><><EFBFBD>Ը<EFBFBD><D4B8><EFBFBD>
		dst->ImgWidth = src->ImgWidth;
		dst->ImgHeight = src->ImgHeight;
		dst->bitcount = src->bitcount;
		dst->BoundingBox = src->BoundingBox;

		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롢<EFBFBD><EBA1A2><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC>
		cv::Mat src_Img;

		if (src->bitcount == 8)
		{
			src_Img = cv::Mat(src->ImgHeight, src->ImgWidth, CV_8UC1);
		} 
		else
		{
			src_Img = cv::Mat(src->ImgHeight, src->ImgWidth, CV_8UC3);
		}

		int lineByte = src->ImgWidth * src->bitcount / 8;
		unsigned int imgBufSize = static_cast<unsigned int>(src->ImgHeight * lineByte);

		if (src_Img.empty() == true)
		{
			return false;
		}
		else
		{
			memcpy(src_Img.data, src->buff, imgBufSize);
		}

		// <20><><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC>
		cv::Mat dst_Img;

		// <20><><EFBFBD><EFBFBD>cvMatIntensityControl<6F>㷨<EFBFBD><E3B7A8>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>ȿ<EFBFBD><C8BF><EFBFBD>
		if (cvMatIntensityControl(src_Img, dst_Img, degree) == true)
		{
			// <20><><EFBFBD>ز<EFBFBD><D8B2><EFBFBD>
			if (src == dst)
			{
				memcpy(dst->buff, dst_Img.data, imgBufSize);
			}
			else
			{
				SAFE_DELETE_ARRAY(dst->buff);
				dst->buff = new unsigned char[imgBufSize];
				memcpy(dst->buff, dst_Img.data, imgBufSize);
			}
		}
		else
		{
			return false;
		}

		return true;
	}
	catch(cv::Exception &e)
	{
		e.msg;
		return false;
	}
	catch(...)
	{
		return false;
	}
}


// OpenCV<43>ṹ<EFBFBD>µ<EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD>ȿ<EFBFBD><C8BF><EFBFBD>
bool cvMatIntensityControl(cv::Mat& src, cv::Mat& dst, int degree)
{
	try
	{
		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC>Ϊ<EFBFBD>գ<EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><D3B7><EFBFBD>false
		if(src.empty() == true)
		{
			return false;
		}

		// ͼ<><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		if (src.type() != CV_8UC1  && src.type() != CV_8UC3)
		{
			return false;
		}

		// <20><><EFBFBD>ȿ<EFBFBD><C8BF>Ƴ̶<C6B3> <20>жϺͲö<CDB2>
		if(degree < 0)
		{
			degree = 0;
		}

		if(degree > 20)
		{
			degree = 20;
		}

		// <20><><EFBFBD><EFBFBD>degree = 10<31><30><EFBFBD><EFBFBD><EFBFBD>ȱ<EFBFBD><C8B1>ֲ<EFBFBD><D6B2><EFBFBD>
		if (degree == 10)
		{
			// <20><><EFBFBD>ݸ<EFBFBD><DDB8><EFBFBD>
			dst = src.clone();
			return true;
		}

		// <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>Դ<EFBFBD><D4B4>㷨

		// ٤<><D9A4>ϵ<EFBFBD><CFB5> 
		double gama = 1.0;

		if (degree < 10) // gama Ϊ<><CEAA>ĸ <20><>1 5<><35>
		{
			gama = -0.4 * degree + 5;
		}
		else
		{
			gama = 1.9 - 0.09 * degree; // gamaΪ <20>ݴΡ<DDB4>0.1 1<><31>
		}

		// <20><><EFBFBD>Ե<EFBFBD>ͨ<EFBFBD><CDA8>
		if (src.type() == CV_8UC1)
		{
			if (degree < 10)
			{
				if (abs(gama) > 0)
				{
					// dst = src * 1 / gama 
					src.convertTo(dst, CV_8UC1, 1.0 / gama);
				}
			} 
			else
			{
				// ת<><D7AA>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0 1<><31>
				cv::Mat gray32;
				src.convertTo(gray32, CV_32FC1, 1.0 / 255);

				// gray32 = gray32 ^ gama
				cv::pow(gray32, gama, gray32);

				// dst = gray32 * 255
				gray32.convertTo(dst, CV_8UC1, 255.0);
			}
		}
		else // <20><>ͨ<EFBFBD><CDA8>
		{
			// YCrCb ģ<><C4A3>  
			cv::Mat YCrCb;
			cv::cvtColor(src, YCrCb, cv::COLOR_BGR2YCrCb);

			// ͼ<><CDBC><EFBFBD><EFBFBD>֤
			if (YCrCb.empty() == true)
			{
				return false;
			}

			// ͨ<><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
			std::vector<cv::Mat> planes;
			cv::split(YCrCb, planes);

			// Y<><59><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
			cv::Mat dstY;
			cvMatIntensityControl(planes[0], dstY, degree);  // Ƕ<><C7B6>

			// ͨ<><CDA8><EFBFBD>ϲ<EFBFBD>
			planes[0] = dstY;
			cv::merge(planes, YCrCb);

			// <20><><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>
			cv::cvtColor(YCrCb, dst, cv::COLOR_YCrCb2BGR);
		}

		return true;
	}
	catch(cv::Exception &e)
	{
		e.msg;
		return false;
	}
	catch(...)
	{
		return false;
	}
}