freeimage转到cvmat & 单通道图像转到3通道[freeimage][cvmat]

FreeImage转cv::Mat

最新推荐文章于 2023-06-15 09:42:15 发布

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最新推荐文章于 2023-06-15 09:42:15 发布 · 550 阅读

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文章标签：

#cpp #freeimage/cv

本文介绍了一种将FreeImage库中的图像数据转换为OpenCV的cv::Mat格式的方法，并提供了一个具体的C++实现示例。该转换适用于多种位深和颜色类型的图像，确保了图像数据能够在不同图像处理库间无缝传递。

0 结果

1 代码

将freeImage转为cv::mat，代码如下：

#include <FreeImage.h>
#include <opencv2\opencv.hpp>
using namespace cv;

// #define _CRT_SECURE_NO_WARNINGS
#pragma warning(disable : 4996)
void FI2MAT(FIBITMAP* src, Mat& dst)
{
   
   
    //FIT_BITMAP    //standard image : 1 - , 4 - , 8 - , 16 - , 24 - , 32 - bit
    //FIT_UINT16    //array of unsigned short : unsigned 16 - bit
    //FIT_INT16     //array of short : signed 16 - bit
    //FIT_UINT32    //array of unsigned long : unsigned 32 - bit
    //FIT_INT32     //array of long : signed 32 - bit
    //FIT_FLOAT     //array of float : 32 - bit IEEE floating point
    //FIT_DOUBLE    //array of double : 64 - bit IEEE floating point
    //FIT_COMPLEX   //array of FICOMPLEX : 2 x 64 - bit IEEE floating point
    //FIT_RGB16     //48 - bit RGB image : 3 x 16 - bit
    //FIT_RGBA16    //64 - bit RGBA image : 4 x 16 - bit
    //FIT_RGBF      //96 - bit RGB float image : 3 x 32 - bit IEEE floating point
    //FIT_RGBAF     //128 - bit RGBA float image : 4 x 32 - bit IEEE floating point

    int bpp = FreeImage_GetBPP(src);
    FREE_IMAGE_TYPE fit = FreeImage_GetImageType(src);

    int cv_type = -1;
    int cv_cvt = -1;

    switch (fit)
    {
   
   
    case FIT_UINT16: cv_type = DataType<ushort>::type; break;
    case FIT_INT16: cv_type = DataType<short>::type; break;
    case FIT_UINT32: cv_type = DataType<unsigned>::type; break;
    case FIT_INT32: cv_type = DataType<int>::type; break;
    case FIT_FLOAT: cv_type = DataType<float>::type