FH98ViewOnPlaneSoftware/Src/QB_ImgProcessFun/ContrastControl.cpp

#include "stdafx.h"
#include "ContrastControl.h"


// ͼ<><CDBC><EFBFBD>Աȶȵ<C8B6><C8B5><EFBFBD>
bool cvMatContrastControl(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() != 0  && src.type() != 16)
		{
			return false;
		}

		// <20>Աȶȿ<C8B6><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;
		}

		double c = (degree - 10.0) / 10.0;
		double k = tan((45.0F + 44.0F * c) / 180.0 * CV_PI);

		// <20><>ͨ<EFBFBD><CDA8>
		if (src.type() == 0)
		{
			if (degree > 10)
			{
				// <20><><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD>Աȶȵ<C8B6><C8B5><EFBFBD>ϵ<EFBFBD><CFB5> 10 - 20  <20><>Ӧ 1 - 2
				degree = degree - 10;
				c = (degree - 10.0) / 10.0;
				k = 1 + tan((45.0F + 44.0F * c) / 180.0 * CV_PI);			
			} 

			// dst = (src - 127.5) * k + 127.5
			cv::addWeighted(src, k, src, 0, 127.5 - 127.5 * k, dst, CV_8UC1);
		}
		else
		{
			// 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;
			cvMatContrastControl(planes[0], dstY, degree);

			// ͨ<><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;
	}
}

// ImgStru ͼ<><CDBC><EFBFBD>ṹ<EFBFBD><E1B9B9> ͼ<><CDBC><EFBFBD>Աȶ<D4B1><C8B6><EFBFBD>ǿ
bool ImgStruContrastControl(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>cvMatContrastControl<6F>㷨
		if (cvMatContrastControl(src_Img, dst_Img, degree) == true)
		{
			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;
	}
}

// <20>鱨<EFBFBD>ṹ ͼ<><CDBC><EFBFBD>Աȶ<D4B1><C8B6><EFBFBD>ǿ
bool QBStruContrastControl(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 && // srcImg <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤
				qbData->image.srcImg.ImgHeight > 0 && // srcImg <20>߶<EFBFBD><DFB6><EFBFBD>֤
				(qbData->image.srcImg.bitcount == 24 || qbData->image.srcImg.bitcount == 8))
			{
				return ImgStruContrastControl(&qbData->image.srcImg, &qbData->image.dstImg, degree);
			}
			else
				if (qbData->image.dstImg.buff != NULL &&
					qbData->image.dstImg.ImgWidth  > 0 && // dstImg <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤
					qbData->image.dstImg.ImgHeight > 0 && // dstImg <20>߶<EFBFBD><DFB6><EFBFBD>֤
					(qbData->image.dstImg.bitcount == 24 || qbData->image.dstImg.bitcount == 8))
				{
					// <20><><EFBFBD><EFBFBD>dstImg<6D><67><EFBFBD><EFBFBD><EFBFBD><EFBFBD>dstImg
					return ImgStruContrastControl(&qbData->image.dstImg, &qbData->image.dstImg, degree);
				}
				else // srcImg dstImg<6D><67><EFBFBD><EFBFBD>Ч
				{
					return false;
				}
		}
		else
		{
			// <20>ȿ<EFBFBD>dstImg<6D>Ƿ<EFBFBD><C7B7><EFBFBD>Ч
			if (qbData->image.dstImg.buff != NULL &&
				qbData->image.dstImg.ImgWidth  > 0 && // dstImg <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤
				qbData->image.dstImg.ImgHeight > 0 && // dstImg <20>߶<EFBFBD><DFB6><EFBFBD>֤
				(qbData->image.dstImg.bitcount == 24 || qbData->image.dstImg.bitcount == 8))
			{
				return ImgStruContrastControl(&qbData->image.dstImg, &qbData->image.dstImg, degree);
			}
			else
				if (qbData->image.srcImg.buff != NULL &&
					qbData->image.srcImg.ImgWidth  > 0 && // srcImg <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤
					qbData->image.srcImg.ImgHeight > 0 && // srcImg <20>߶<EFBFBD><DFB6><EFBFBD>֤
					(qbData->image.srcImg.bitcount == 24 || qbData->image.srcImg.bitcount == 8))
				{
					return ImgStruContrastControl(&qbData->image.srcImg, &qbData->image.dstImg, degree);
				} 
				else // <20>鱨<EFBFBD>ṹ<EFBFBD><E1B9B9>srcImg <20><> dstImg <20><><EFBFBD><EFBFBD>Ч
				{
					return false;
				}
			
		}

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