Enum BorderTypes 

#[repr(i32)]
pub enum BorderTypes {
    BORDER_CONSTANT = 0,
    BORDER_REPLICATE = 1,
    BORDER_REFLECT = 2,
    BORDER_WRAP = 3,
    BORDER_REFLECT_101 = 4,
    BORDER_TRANSPARENT = 5,
    BORDER_ISOLATED = 16,
}

! Various border types, image boundaries are denoted with the | character in the table below, when describing each method.

The following examples show the result of the [copyMakeBorder] call according to different methods. Input image is 6x4 (width x height) size and the [copyMakeBorder] function is used with a border size of 2 pixels in each direction, giving a resulting image of 10x8 resolution.

Input image:
[[ 0  1  2  3  4  5]
 [ 6  7  8  9 10 11]
 [12 13 14 15 16 17]
 [18 19 20 21 22 23]]

Border type: BORDER_CONSTANT (a constant value of 255 is used)
[[255 255 255 255 255 255 255 255 255 255]
 [255 255 255 255 255 255 255 255 255 255]
 [255 255   0   1   2   3   4   5 255 255]
 [255 255   6   7   8   9  10  11 255 255]
 [255 255  12  13  14  15  16  17 255 255]
 [255 255  18  19  20  21  22  23 255 255]
 [255 255 255 255 255 255 255 255 255 255]
 [255 255 255 255 255 255 255 255 255 255]]

Border type: BORDER_REPLICATE
[[ 0  0  0  1  2  3  4  5  5  5]
 [ 0  0  0  1  2  3  4  5  5  5]
 [ 0  0  0  1  2  3  4  5  5  5]
 [ 6  6  6  7  8  9 10 11 11 11]
 [12 12 12 13 14 15 16 17 17 17]
 [18 18 18 19 20 21 22 23 23 23]
 [18 18 18 19 20 21 22 23 23 23]
 [18 18 18 19 20 21 22 23 23 23]]

Border type: BORDER_REFLECT
[[ 7  6  6  7  8  9 10 11 11 10]
 [ 1  0  0  1  2  3  4  5  5  4]
 [ 1  0  0  1  2  3  4  5  5  4]
 [ 7  6  6  7  8  9 10 11 11 10]
 [13 12 12 13 14 15 16 17 17 16]
 [19 18 18 19 20 21 22 23 23 22]
 [19 18 18 19 20 21 22 23 23 22]
 [13 12 12 13 14 15 16 17 17 16]]

Border type: BORDER_WRAP
[[16 17 12 13 14 15 16 17 12 13]
 [22 23 18 19 20 21 22 23 18 19]
 [ 4  5  0  1  2  3  4  5  0  1]
 [10 11  6  7  8  9 10 11  6  7]
 [16 17 12 13 14 15 16 17 12 13]
 [22 23 18 19 20 21 22 23 18 19]
 [ 4  5  0  1  2  3  4  5  0  1]
 [10 11  6  7  8  9 10 11  6  7]]

Border type: BORDER_REFLECT_101
[[14 13 12 13 14 15 16 17 16 15]
 [ 8  7  6  7  8  9 10 11 10  9]
 [ 2  1  0  1  2  3  4  5  4  3]
 [ 8  7  6  7  8  9 10 11 10  9]
 [14 13 12 13 14 15 16 17 16 15]
 [20 19 18 19 20 21 22 23 22 21]
 [14 13 12 13 14 15 16 17 16 15]
 [ 8  7  6  7  8  9 10 11 10  9]]

See also

borderInterpolate, copyMakeBorder

Variants

BORDER_CONSTANT = 0

iiiiii|abcdefgh|iiiiiii with some specified i

BORDER_REPLICATE = 1

aaaaaa|abcdefgh|hhhhhhh

BORDER_REFLECT = 2

fedcba|abcdefgh|hgfedcb

BORDER_WRAP = 3

cdefgh|abcdefgh|abcdefg

BORDER_REFLECT_101 = 4

gfedcb|abcdefgh|gfedcba

BORDER_TRANSPARENT = 5

uvwxyz|abcdefgh|ijklmno - Treats outliers as transparent.

BORDER_ISOLATED = 16

Interpolation restricted within the ROI boundaries.

Trait Implementations

impl Clone for BorderTypes

fn clone(&self) -> BorderTypes

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BorderTypes

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<BorderTypes> for i32

fn from(v: BorderTypes) -> Self

Converts to this type from the input type.

impl PartialEq for BorderTypes

fn eq(&self, other: &BorderTypes) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<i32> for BorderTypes

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: i32) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for BorderTypes

impl Eq for BorderTypes

impl StructuralPartialEq for BorderTypes