Enum VisionError 

pub enum VisionError {
    Image(ImageError),
    InvalidDimensions(String),
    InvalidParameter(String),
    ShapeMismatch(String),
    DescriptorLayout {
        rows: usize,
        width: usize,
        expected: usize,
        actual: usize,
    },
    FeatureCountMismatch {
        keypoints: usize,
        descriptors: usize,
    },
    MatchIndexOutOfBounds {
        query: usize,
        queries: usize,
        train: usize,
        trains: usize,
    },
    GeometryResultLayout {
        correspondences: usize,
        inliers: usize,
        residuals: usize,
    },
    SingularTransform,
}

Errors raised by image and vision algorithms.

Variants

Image(ImageError)

Image construction or layout validation failed.

InvalidDimensions(String)

An operation received unusable image dimensions.

InvalidParameter(String)

A numeric parameter was invalid.

ShapeMismatch(String)

Input collections or maps had incompatible shapes.

DescriptorLayout

A descriptor buffer does not match its declared row layout.

Fields

rows: usize

Descriptor row count.

width: usize

Values or bytes per descriptor.

expected: usize

Required flat storage length.

actual: usize

Supplied flat storage length.

FeatureCountMismatch

Keypoint and descriptor row counts differ.

Fields

keypoints: usize

Number of keypoints.

descriptors: usize

Number of descriptors.

MatchIndexOutOfBounds

A feature match references a keypoint outside its collection.

Fields

query: usize

Query index.

queries: usize

Query feature count.

train: usize

Train index.

trains: usize

Train feature count.

GeometryResultLayout

Inlier and residual arrays do not match the correspondence count.

Fields

correspondences: usize

Number of input correspondences.

inliers: usize

Number of inlier flags.

residuals: usize

Number of residual values.

SingularTransform

A geometric transform could not be inverted.

Trait Implementations

impl Clone for VisionError

fn clone(&self) -> VisionError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VisionError

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

Formats the value using the given formatter.

impl Display for VisionError

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

Formats the value using the given formatter.

impl Error for VisionError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<ImageError> for VisionError

fn from(source: ImageError) -> Self

Converts to this type from the input type.

impl PartialEq for VisionError

fn eq(&self, other: &VisionError) -> 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 StructuralPartialEq for VisionError