Enum PHashError 

pub enum PHashError {
    InsufficientStability {
        unstable_bits: usize,
        threshold: f32,
    },
    RecoveryFailed,
    KdfError(String),
}

Every way perceptual hashing can fail.

Variants

InsufficientStability

Too many coefficients sit within DELTA_MIN of the median for the hash to be reproducible after embedding.

Fields

unstable_bits: usize

How many of the 64 bits are uncertain.

threshold: f32

The margin threshold that was applied.

RecoveryFailed

Neither hypothesis for the uncertain bit produced a key that matches the extracted payload. The image, the password or the payload is wrong.

KdfError(String)

Key derivation failed while testing a hypothesis.

Trait Implementations

impl Debug for PHashError

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

Formats the value using the given formatter.

impl Display for PHashError

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

Formats the value using the given formatter.

impl Error for PHashError

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<PHashError> for PipelineError

fn from(err: PHashError) -> Self

Converts to this type from the input type.