opencv::imgcodecs

Enum ImreadModes

#[repr(C)]pub enum ImreadModes {
Show 14 variants    IMREAD_UNCHANGED = -1,
    IMREAD_GRAYSCALE = 0,
    IMREAD_COLOR_BGR = 1,
    IMREAD_ANYDEPTH = 2,
    IMREAD_ANYCOLOR = 4,
    IMREAD_LOAD_GDAL = 8,
    IMREAD_REDUCED_GRAYSCALE_2 = 16,
    IMREAD_REDUCED_COLOR_2 = 17,
    IMREAD_REDUCED_GRAYSCALE_4 = 32,
    IMREAD_REDUCED_COLOR_4 = 33,
    IMREAD_REDUCED_GRAYSCALE_8 = 64,
    IMREAD_REDUCED_COLOR_8 = 65,
    IMREAD_IGNORE_ORIENTATION = 128,
    IMREAD_COLOR_RGB = 256,
}

Expand description

Imread flags

Variants§

IMREAD_UNCHANGED = -1

If set, return the loaded image as is (with alpha channel, otherwise it gets cropped). Ignore EXIF orientation.

IMREAD_GRAYSCALE = 0

If set, always convert image to the single channel grayscale image (codec internal conversion).

IMREAD_COLOR_BGR = 1

If set, always convert image to the 3 channel BGR color image.

IMREAD_ANYDEPTH = 2

If set, return 16-bit/32-bit image when the input has the corresponding depth, otherwise convert it to 8-bit.

IMREAD_ANYCOLOR = 4

If set, the image is read in any possible color format.

IMREAD_LOAD_GDAL = 8

If set, use the gdal driver for loading the image.

IMREAD_REDUCED_GRAYSCALE_2 = 16

If set, always convert image to the single channel grayscale image and the image size reduced 1/2.

IMREAD_REDUCED_COLOR_2 = 17

If set, always convert image to the 3 channel BGR color image and the image size reduced 1/2.

IMREAD_REDUCED_GRAYSCALE_4 = 32

If set, always convert image to the single channel grayscale image and the image size reduced 1/4.

IMREAD_REDUCED_COLOR_4 = 33

If set, always convert image to the 3 channel BGR color image and the image size reduced 1/4.

IMREAD_REDUCED_GRAYSCALE_8 = 64

If set, always convert image to the single channel grayscale image and the image size reduced 1/8.

IMREAD_REDUCED_COLOR_8 = 65

If set, always convert image to the 3 channel BGR color image and the image size reduced 1/8.

IMREAD_IGNORE_ORIENTATION = 128

If set, do not rotate the image according to EXIF’s orientation flag.

IMREAD_COLOR_RGB = 256

If set, always convert image to the 3 channel RGB color image.

Trait Implementations§

impl Clone for ImreadModes

fn clone(&self) -> ImreadModes

Returns a copy of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for ImreadModes

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

Formats the value using the given formatter. Read more

impl From<ImreadModes> for i32

fn from(v: ImreadModes) -> Self

Converts to this type from the input type.

impl PartialEq for ImreadModes

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

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

1.0.0 · Source§

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 ImreadModes

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 ImreadModes

impl Eq for ImreadModes

impl StructuralPartialEq for ImreadModes

Auto Trait Implementations§

impl Freeze for ImreadModes

impl RefUnwindSafe for ImreadModes

impl Send for ImreadModes

impl Sync for ImreadModes

impl Unpin for ImreadModes

impl UnwindSafe for ImreadModes

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.