标签：Load cout freeimage dib FreeImage int fif jpg tif
这函数功能是输入一个路径名，返回解析到的图片 然后存放到一个vector里面
解决了网上代码 内存泄漏 问题。修改了代码结构，修复了大数据量调用崩溃的情况
#include<opencv.hpp>
using namespace cv;
using namespace std;
Mat Gif_To_Mat(FIBITMAP* fiBmp, const FREE_IMAGE_FORMAT fif);
void FreeImageErrorHandler(FREE_IMAGE_FORMAT fif, const char *message);
bool Gif_Load(const string &filename, vector<Mat>& res);
bool Jpg_To_Video();
bool Show_Video();
unsigned char bpp;
BYTE *bits;
bool Load_flag;
int width;
int height;
FREE_IMAGE_FORMAT fif = FIF_UNKNOWN;
Mat Src_Gif;
int _tmain(int argc, _TCHAR* argv[])
{
//FreeImage_Initialise();
using clock = std::chrono::system_clock;
using ms = std::chrono::milliseconds;
const auto before = clock::now();
cv::String gyLabelFP = "F:/cppcode/cpptest/verifi_code/path.txt";//图片列表路径
ifstream infile;;
string line;
infile.open(gyLabelFP); //将文件流对象与文件连接起来
/*cout << labelFP << endl;*/
while (getline(infile, line))
{
String gif_path = line;
vector<Mat>res;
for (int i = 0; i < 2000; i++)
{
Load_flag = Gif_Load(gif_path, res);
if (Load_flag == TRUE)
{
//Jpg_To_Video();
////Show_Video();
cout << "load file successful!" << endl;
}
cout << i << endl;
}
}
//FreeImage_DeInitialise();
const auto duration = std::chrono::duration_cast<ms>(clock::now() - before);
std::cout << duration.count() << "ms" << std::endl;
return 0;
}
bool Gif_Load(const string &filename,vector<Mat>&res)
{
FreeImage_Initialise();
FIBITMAP *dib = 0;
FIMULTIBITMAP *bitmap = 0;
FIBITMAP * pFrame;
fif = FreeImage_GetFileType(filename.c_str(), 0);
if (fif == FIF_UNKNOWN)
fif = FreeImage_GetFIFFromFilename(filename.c_str());
if (fif == FIF_UNKNOWN)
return false;
if (FreeImage_FIFSupportsReading(fif))
dib = FreeImage_Load(fif, filename.c_str());
if (!dib)
return false;//dib Load failed
//bpp = FreeImage_GetBPP(dib);
//bits = (BYTE*)FreeImage_GetBits(dib);
width = FreeImage_GetWidth(dib);
height = FreeImage_GetHeight(dib);
cout << "Load The File: " << filename.c_str() << endl;
cout << "The File's width: " << width << endl;
cout << "The File's height: " << height << endl;
//if ((bits == 0) || (width == 0) || (height == 0)) return false;
bitmap = FreeImage_OpenMultiBitmap(fif, filename.c_str(), 0, 0, 1, GIF_DEFAULT);
if (bitmap == NULL)
{
cout << "BitMap == Null" << endl;
return FALSE;
}
int count = FreeImage_GetPageCount(bitmap);//获取帧数；
for (int i = 0; i <count; i++)
{
pFrame = FreeImage_LockPage(bitmap, i);
//cout << "pFrame:" << pFrame << endl;
Src_Gif = Gif_To_Mat(pFrame, fif);
res.push_back(Src_Gif);
string fold = "F:/cppcode/cpptest/data/";
string Src_Gif_Name = to_string(i);
imwrite(fold + Src_Gif_Name + ".jpg", Src_Gif);
FreeImage_UnlockPage(bitmap, pFrame, 1);
}
BOOL bSuccess = FreeImage_CloseMultiBitmap(bitmap, 0);
if (!bSuccess)
{
return FALSE;
}
FreeImage_Unload(dib);
FreeImage_DeInitialise();
Load_flag = TRUE;
return Load_flag;
}
Mat Gif_To_Mat(FIBITMAP* fiBmp, const FREE_IMAGE_FORMAT fif)
{
if (fiBmp == NULL || fif != FIF_GIF)
{
return Mat();
}
//int width = FreeImage_GetWidth(fiBmp);
//int height = FreeImage_GetHeight(fiBmp);
BYTE intensity;
BYTE* PIintensity = &intensity;
if (FreeImage_GetBPP(fiBmp) != 8)
fiBmp = FreeImage_ConvertTo8Bits(fiBmp);
//RGBQUAD* pixels = new RGBQUAD;
RGBQUAD* pixels = FreeImage_GetPalette(fiBmp);
Mat img = Mat::zeros(height, width, CV_8UC3);
uchar *p;
for (int i = 0; i < height; i++)
{
p = img.ptr<uchar>(i);
for (int j = 0; j < width; j++)
{
FreeImage_GetPixelIndex(fiBmp, j, height - i, PIintensity);//height - i
p[3 * j] = pixels[intensity].rgbBlue;
p[3 * j + 1] = pixels[intensity].rgbGreen;
p[3 * j + 2] = pixels[intensity].rgbRed;
}
}
return img;
}
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标签：Load,cout,freeimage,dib,FreeImage,int,fif,jpg,tif 来源： https://blog.csdn.net/u010654302/article/details/104051662
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