Once matrix is created it will be automatically managed by using reference counting mechanism.
Mat class opencv.
It can be used to store real or complex valued vectors and matrices grayscale or color images voxel volumes vector fields point clouds tensors histograms though very high dimensional histograms may be better stored in a sparsemat.
It can be used to store real or complex valued vectors and matrices grayscale or color images voxel volumes vector fields point clouds tensors histograms though very high dimensional histograms may be better stored in a sparsemat.
The class mat tp is a thin template wrapper on top of the mat class.
The class mat represents an n dimensional dense numerical single channel or multi channel array.
It is also compatible with the majority of dense array types from the standard toolkits and sdks such as numpy ndarray win32 independent device bitmaps and others that is with any array that uses steps or strides to compute the position of a pixel.
In opencv the image class is cv mat which has a delicate memory management scheme.
The class represents an n dimensional dense numerical array that can act as a matrix image optical flow map 3 focal tensor etc it is very similar to cvmat and cvmatnd types from earlier versions of opencv and similarly to those types the matrix can be multi channel.
Also note the extra parentheses that are needed to avoid compiler errors.
Make sure you add that file to your project so the code gets compiled and linked too.
So the data layout in mat is fully compatible with cvmat iplimage and cvmatnd types from opencv 1 x.
It also fully supports roi mechanism.
It s not missing an external lib just a file of yours.
Thus references or pointers to these two classes can be freely but carefully converted one to another.
According to opencv 2 4 xxx.
Nor this class nor mat has any virtual methods.
At the beginning i will put all the image pixel contents to this class.
It does not have any extra data fields.
The matrix header containing information such as the size of the matrix the method used for storing at which address is the matrix stored and so on and a pointer to the matrix containing the pixel values taking any dimensionality depending on the method chosen for storing.
So the data layout in mat is fully compatible with cvmat iplimage and cvmatnd types from opencv 1 x.
Suppose i already have my own image class selfimage.
If above is classifier h there must be a classifier cpp too containing the code for your functions.
Mat is basically a class with two data parts.
Memory management is essential for an image class.
Class selfimage public.
