Tesserax

An Elixir application that wraps the Tesseract OCR Engine.

One utilizes this application by creating commands and feeding them to Tesseract wrappers. The wrapper can be used via Tesserax.read_from_mem/1 or Tesserax.read_from_file/1 and needs a %Tesserax.Command{} struct as argument. Tesserax.read_from_mem/1 reads text from an image loaded in memory, Tesserax.read_from_file/1 reads text from the image provided by the image path.

# Reading text from memory
Tesserax.Command.make_command(
    image: <<...>>, # image binary data
    languages: ["eng", "hin"], 
    tessdata: "path/to/tessdata/dir", 
    config: "path/to/config/file", 
    psm: 0, 
    oem: 0
)
|> Tesserax.read_from_mem()

# Reading text from a file
Tesserax.Command.make_command(
    image: "path/to/image", 
    languages: ["eng", "hin"], 
    tessdata: "path/to/tessdata/dir", 
    config: "path/to/config/file", 
    psm: 0, 
    oem: 0
)
|> Tesserax.read_from_file()

An image loaded in memory needs to be in PNG format.

Installation

If available in Hex, the package can be installed by adding tesserax to your list of dependencies in mix.exs:

def deps do
  [
    {:tesserax, "~> 0.1.0"}
  ]
end

Documentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/tesserax.

See also

• tesseract
• tesseract-ocr-elixir.