Enum OcrError 

pub enum OcrError {
    Initialize(TessInitError),
    AlreadyInitialized,
    SetVariable(TessSetVariableError),
    WritePnmImage(ImageError),
    SetImage(PixError),
    GetText(Utf8Error),
}

Error of the Ocr process with Tesseract.

Variants

Initialize(TessInitError)

Indicate than Tesseract could not be initialized.

AlreadyInitialized

Indicate than TESSERACT was already initialized on this thread

SetVariable(TessSetVariableError)

Indicate an error during Tesseract variable set.

WritePnmImage(ImageError)

Indicate than the pnm image couldn’t be wrote in memory.

SetImage(PixError)

Indicate a failure during set Pnm image to Tesseract.

GetText(Utf8Error)

Indicate than Tesseract failed to provide a text from the image.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<ImageError> for Error

fn from(source: ImageError) -> Self

Converts to this type from the input type.

impl From<PixError> for Error

fn from(source: PixError) -> Self

Converts to this type from the input type.

impl From<TessInitError> for Error

fn from(source: TessInitError) -> Self

Converts to this type from the input type.

impl From<TessSetVariableError> for Error

fn from(source: TessSetVariableError) -> Self

Converts to this type from the input type.

impl From<Utf8Error> for Error

fn from(source: Utf8Error) -> Self

Converts to this type from the input type.