Function opencv::core::ensure_size_is_enough

pub fn ensure_size_is_enough(
    rows: i32, 
    cols: i32, 
    typ: i32, 
    arr: &mut dyn ToOutputArray
) -> Result<()>

Ensures that the size of a matrix is big enough and the matrix has a proper type.

Parameters

• rows: Minimum desired number of rows.
• cols: Minimum desired number of columns.
• type: Desired matrix type.
• arr: Destination matrix.

The function does not reallocate memory if the matrix has proper attributes already.