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Copy cv::Mat *src to cv::Mat *des in OpenCV

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-2

I would like copy an cv::Mat* to an other cv:Mat.. How can I do this? The functions .copyto and .clone are not work..

opencv opencv-mat

share|improve this question

asked Mar 8 at 7:24

Mr. ManPowerMr. ManPower

6

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  1
  

  
  
  
  
  
  

  
  
  Could you post the code you tried?
  
  – Bahramdun Adil
  Mar 8 at 7:28
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  cv::Mat* is a pointer to a cv::Mat object, not a cv::Mat object itself, thus the mentioned methods aren't applicable. If you're not familiar with using pointers, have a look at an introduction.
  
  – HansHirse
  Mar 8 at 7:29
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This is right.. And how can I copy an Pointer Mat?? I have cv::Mat* Image 1 and cv::Mat* Image2 and would like copy the imagedata from Image2 to Image1..
  
  – Mr. ManPower
  Mar 8 at 7:32
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  psrc->copyTo(*pdst) ? And you shoud allocate memory for them.
  
  – Kinght 金
  Mar 8 at 7:47
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Are you sure you even need cv::Mat*? cv::Mat already behaves like a smart pointer... so cv::Mat a = b it is like copying a pointer to the image data of b... And only the clone and copyTo methods will do a deep copy of the data. If you use pointer, you probably miss the dereferencing part... but I don't know what are you doing. Maybe if you post your code people can give an answer that suits you better.
  
  – api55
  Mar 8 at 9:42
  
  

  
  
  
  

add a comment | 

-2

I would like copy an cv::Mat* to an other cv:Mat.. How can I do this? The functions .copyto and .clone are not work..

opencv opencv-mat

share|improve this question

asked Mar 8 at 7:24

Mr. ManPowerMr. ManPower

6

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Could you post the code you tried?
  
  – Bahramdun Adil
  Mar 8 at 7:28
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  cv::Mat* is a pointer to a cv::Mat object, not a cv::Mat object itself, thus the mentioned methods aren't applicable. If you're not familiar with using pointers, have a look at an introduction.
  
  – HansHirse
  Mar 8 at 7:29
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This is right.. And how can I copy an Pointer Mat?? I have cv::Mat* Image 1 and cv::Mat* Image2 and would like copy the imagedata from Image2 to Image1..
  
  – Mr. ManPower
  Mar 8 at 7:32
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  psrc->copyTo(*pdst) ? And you shoud allocate memory for them.
  
  – Kinght 金
  Mar 8 at 7:47
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Are you sure you even need cv::Mat*? cv::Mat already behaves like a smart pointer... so cv::Mat a = b it is like copying a pointer to the image data of b... And only the clone and copyTo methods will do a deep copy of the data. If you use pointer, you probably miss the dereferencing part... but I don't know what are you doing. Maybe if you post your code people can give an answer that suits you better.
  
  – api55
  Mar 8 at 9:42
  
  

  
  
  
  

add a comment | 

I would like copy an cv::Mat* to an other cv:Mat.. How can I do this? The functions .copyto and .clone are not work..

opencv opencv-mat

share|improve this question

asked Mar 8 at 7:24

Mr. ManPowerMr. ManPower

6

share|improve this question

asked Mar 8 at 7:24

Mr. ManPowerMr. ManPower

6

share|improve this question

asked Mar 8 at 7:24

Mr. ManPowerMr. ManPower

6

asked Mar 8 at 7:24

Mr. ManPowerMr. ManPower

6

asked Mar 8 at 7:24

Mr. ManPowerMr. ManPower

6