OpenCV Mat Class Java: Methods & Usage

In Java, we can use the Mat class to represent matrix data structures in OpenCV, which includes various methods to manipulate and process matrix data.

Here are some common methods of the Mat class:

1. Create a Mat object.

Create a new matrix with the specified number of rows, columns, and type.

1. Accessing elements in a Mat object:

Retrieve data from the matrix and store it in an array, then put that data back into the matrix.

1. Duplicate the Mat object.

Create a new Mat object named copyMat and copy the content of Mat object into it.

1. Convert the data type of a Mat object.

Create a new variable called convertedMat and convert the original mat to this new variable using the specified targetType.

1. Obtain the data type of a Mat object:

Assign the type of ‘mat’ to the variable ‘type’.

1. Obtain the number of rows and columns of the Mat object:

Get the number of rows and columns in the matrix stored in the variable “mat” and assign them to the variables “rows” and “cols,” respectively.

1. Get the size of the Mat object:

Assign the size of the matrix to the variable “size”.

1. Perform arithmetic operations on Mat objects.

Create a new matrix called ‘result’ and add ‘mat1’ and ‘mat2’ together.

These are some commonly used methods in the Mat class, you can choose the appropriate method to operate and manipulate matrix data based on specific needs.