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Convert Mat to byte[] in C++

Hello,

For a project I have to return a byte[] in C++ in order to be implement by wrapper like java. I am not very experimented with byte and I don't know what it's the best approach. I tried this code :

typedef unsigned char byte[];

byte[] matToBytes(Mat image)
{
   int size = image.rows*image.cols;
   byte[size] bytes;
   std::memcpy(bytes,image.data,size * sizeof(byte);
}

And I must be able to reconvert this byte[] in Mat. So I tried this code too :

Mat BytestoMat(byte[] bytes,int width,int height)
{
    Mat image = Mat(height,width,CV_8UC3,bytes);
    return image;
}

Do you think it a good approach or is there a better approach ? I saw there is function like imread and imwrite in opencv but i don't if it can do the same thing.

Best regards

Convert Mat to byte[] in C++

Hello,

For a project I have to return a byte[] in C++ in order to be implement by wrapper like java. I am not very experimented with byte and I don't know what it's the best approach. I tried this code :

typedef unsigned char byte[];byte[]; byte[] matToBytes(Mat image) { int size = image.rows*image.cols; byte[size] bytes; std::memcpy(bytes,image.data,size * sizeof(byte); } And I must be able to reconvert this byte[] in Mat. So I tried this code too : Mat BytestoMat(byte[] bytes,int width,int height) { Mat image = Mat(height,width,CV_8UC3,bytes); return image; } Do you think it a good approach or is there a better approach ? I saw there is function like imread and imwrite in opencv but i don't if it can do the same thing. Best regards

          3    No.3 Revision 
      updated 
2014-05-19 04:32:31 -0600
 
 
 
  
 
 
 
  Convert Mat to byte[] in C++
 Hello,
 For a project I have to return a byte[] in C++ in order to be implement by wrapper like java.
I am not very experimented with byte and I don't know what it's the best approach. I tried this code :
 typedef unsigned char byte[];
byte;

byte[] matToBytes(Mat image)
{
   int size = image.rows*image.cols;
   byte[size] bytes;
   std::memcpy(bytes,image.data,size * sizeof(byte);
}
 And I must be able to reconvert this byte[] in Mat. So I tried this code too :
 Mat BytestoMat(byte[] bytes,int width,int height)
{
    Mat image = Mat(height,width,CV_8UC3,bytes);
    return image;
}
 Do you think it a good approach or is there a better approach ? I saw there is function like imread and imwrite in opencv but i don't if it can do the same thing.
 Best regards
 
 
 
          4    No.4 Revision 
      updated 
2014-05-19 04:33:52 -0600
 
 
 
  
 
 
 
  Convert Mat to byte[] in C++
 Hello,
 For a project I have to return a byte[] in C++ in order to be implement by wrapper like java.
I am not very experimented with byte and I don't know what it's the best approach. I tried this code :
 typedef unsigned char byte;

byte[] matToBytes(Mat image)
{
   int size = image.rows*image.cols;
   byte[size] bytes;
byte bytes[size];
   std::memcpy(bytes,image.data,size * sizeof(byte);
}
 And I must be able to reconvert this byte[] in Mat. So I tried this code too :
 Mat BytestoMat(byte[] bytes,int width,int height)
{
    Mat image = Mat(height,width,CV_8UC3,bytes);
    return image;
}
 Do you think it a good approach or is there a better approach ? I saw there is function like imread and imwrite in opencv but i don't if it can do the same thing.
 Best regards
 
 
 
          5    retagged 
      updated 
2016-01-07 05:55:49 -0600
 
    sturkmen  
 6772  ●3 ●48 ●79  
https://github.com/stu...
 
 
 
 
  
 
 
 
  Convert Mat to byte[] in C++
 Hello,
 For a project I have to return a byte[] in C++ in order to be implement by wrapper like java.
I am not very experimented with byte and I don't know what it's the best approach. I tried this code :
 typedef unsigned char byte;

byte[] matToBytes(Mat image)
{
   int size = image.rows*image.cols;
   byte bytes[size];
   std::memcpy(bytes,image.data,size * sizeof(byte);
}
 And I must be able to reconvert this byte[] in Mat. So I tried this code too :
 Mat BytestoMat(byte[] bytes,int width,int height)
{
    Mat image = Mat(height,width,CV_8UC3,bytes);
    return image;
}
 Do you think it a good approach or is there a better approach ? I saw there is function like imread and imwrite in opencv but i don't if it can do the same thing.
 Best regards