Struct opencv::core::Range

pub struct Range { /* fields omitted */ }

Template class specifying a continuous subsequence (slice) of a sequence.

The class is used to specify a row or a column span in a matrix ( Mat ) and for many other purposes. Range(a,b) is basically the same as a:b in Matlab or a..b in Python. As in Python, start is an inclusive left boundary of the range and end is an exclusive right boundary of the range. Such a half-opened interval is usually denoted as [start,end) .

The static method Range::all() returns a special variable that means "the whole sequence" or "the whole range", just like " : " in Matlab or " ... " in Python. All the methods and functions in OpenCV that take Range support this special Range::all() value. But, of course, in case of your own custom processing, you will probably have to check and handle it explicitly:

void my_function(..., const Range& r, ....)
{
if(r == Range::all()) {
// process all the data
}
else {
// process [r.start, r.end)
}
}

Methods

impl Range

pub fn default() -> Result<Range>

pub fn new(_start: i32, _end: i32) -> Result<Range>

pub fn size(&self) -> Result<i32>

pub fn empty(&self) -> Result<bool>

pub fn all() -> Result<Range>

Trait Implementations

impl Drop for Range

fn drop(&mut self)

Executes the destructor for this type.