### Install PyTesseract from Source

Source: https://pypi.org/project/pytesseract

Install pytesseract from source by cloning the repository and then running the pip install command. This method allows for local modifications or development.

```bash
git clone https://github.com/madmaze/pytesseract.git
cd pytesseract && pip install -U .
```

--------------------------------

### Install PyTesseract from GitHub

Source: https://pypi.org/project/pytesseract

Install or upgrade pytesseract directly from its GitHub repository using pip. This is useful for installing the latest development version.

```bash
pip install -U git+https://github.com/madmaze/pytesseract.git
```

--------------------------------

### Install pytesseract-api

Source: https://pypi.org/project/pytesseract-api

Install the package using pip. This is the standard method for adding Python packages to your project.

```bash
pip install pytesseract-api
```

--------------------------------

### Install PyTesseract via Pip

Source: https://pypi.org/project/pytesseract

Install the pytesseract package using pip. This is the standard method for installing Python packages.

```bash
pip install pytesseract
```

--------------------------------

### Get Available Languages

Source: https://pypi.org/project/pytesseract

Retrieves a list of languages supported by the Tesseract installation.

```python
# List of available languages
print(pytesseract.get_languages(config=''))
```

--------------------------------

### Run PyTesseract Tests with Tox

Source: https://pypi.org/project/pytesseract

Install and run the project's test suite using tox. Ensure that Tesseract OCR is installed and accessible in your system's PATH.

```bash
pip install tox
tox
```

--------------------------------

### Install pytesseract-cli

Source: https://pypi.org/project/pytesseract-cli

Use this command to install the latest version of pytesseract-cli using pip.

```bash
pip install pytesseract-cli
```

--------------------------------

### Install PyTesseract with Conda

Source: https://pypi.org/project/pytesseract

Install pytesseract using the conda package manager from the conda-forge channel. This is an alternative installation method for users managing environments with conda.

```bash
conda install -c conda-forge pytesseract
```

--------------------------------

### get_tesseract_version

Source: https://pypi.org/project/pytesseract

Returns the Tesseract version installed in the system.

```APIDOC
## get_tesseract_version

### Description
Returns the Tesseract version installed in the system.

### Method
`get_tesseract_version()`

### Parameters
None

### Response
- **version** (str) - The installed Tesseract version string.
```

--------------------------------

### Get Orientation and Script Detection

Source: https://pypi.org/project/pytesseract

Analyzes the image to detect text orientation and script.

```python
# Get information about orientation and script detection
print(pytesseract.image_to_osd(Image.open('test.png')))
```

--------------------------------

### Get Bounding Boxes

Source: https://pypi.org/project/pytesseract

Extracts bounding box coordinates for each character in the image.

```python
# Get bounding box estimates
print(pytesseract.image_to_boxes(Image.open('test.png')))
```

--------------------------------

### Get Detailed OCR Data

Source: https://pypi.org/project/pytesseract

Retrieves verbose OCR data, including bounding boxes, confidences, and line/page numbers.

```python
# Get verbose data including boxes, confidences, line and page numbers
print(pytesseract.image_to_data(Image.open('test.png')))
```

--------------------------------

### pytesseract-cli Usage Help

Source: https://pypi.org/project/pytesseract-cli

This command displays the help message for pytesseract-cli, outlining all available options and arguments.

```bash
pytesseract-cli
usage: pytesseract-cli [-h] [-f [FILES ...]] [-d [DIRECTORIES ...]] [-r] [-t {pdf,txt}] [-l LANG] [--list-languages]

optional arguments:
  -h, --help            show this help message and exit
  -f [FILES ...]        name(s) of file(s) to process
  -d [DIRECTORIES ...]  directory(s) to process
  -r                    recurse on all directories listed
  -t {pdf,txt}          desired output filetype
  -l LANG               language of the text in any image(s)
  --list-languages      list all languages available

```

--------------------------------

### Run Tesseract OCR with Custom Config File

Source: https://pypi.org/project/pytesseract

Use a pre-defined configuration file for Tesseract OCR. Ensure the config file exists and is accessible.

```python
cfg_filename = 'words'
pytesseract.run_and_get_output(image, extension='txt', config=cfg_filename)
```

--------------------------------

### Basic OCR Usage with pytesseract-api

Source: https://pypi.org/project/pytesseract-api

Demonstrates how to perform OCR on an image using pytesseract-api. Requires OpenCV for image loading. Ensure you have 'sample.png' in your working directory.

```python
import cv2

from pytesseract_api import image_to_string

img = cv2.imread("sample.png")
text = image_to_string(img)
print(text)
```

--------------------------------

### run_and_get_multiple_output

Source: https://pypi.org/project/pytesseract

Returns raw output for multiple extensions from a single Tesseract call.

```APIDOC
## run_and_get_multiple_output

### Description
Returns raw output for multiple extensions from a single Tesseract call. This function replaces the `extension: str` kwarg with `extension: List[str]` where a list of extensions can be specified and the corresponding data is returned after only one tesseract call. This function reduces the number of calls to tesseract when multiple output formats, like both text and bounding boxes, are needed.

### Method
`run_and_get_multiple_output(image, extension: List[str], config='', nice=0, timeout=0)`

### Parameters
- **image** (Object or String) - either PIL Image, NumPy array or file path of the image to be processed by Tesseract. If you pass object instead of file path, pytesseract will implicitly convert the image to RGB mode.
- **extension** (List[str]) - A list of file extensions for the desired output formats.
- **config** (String, optional) - Any additional custom configuration flags that are not available via the pytesseract function. For example: config='--psm 6'
- **nice** (Integer, optional) - Modifies the processor priority for the Tesseract run. Not supported on Windows. Nice adjusts the niceness of unix-like processes.
- **timeout** (Integer or Float, optional) - Duration in seconds for the OCR processing, after which, pytesseract will terminate and raise RuntimeError.

### Response
- **multiple_outputs** (Dict[str, str]) - A dictionary where keys are the requested extensions and values are the corresponding raw outputs.
```

--------------------------------

### Generate Searchable PDF

Source: https://pypi.org/project/pytesseract

Creates a searchable PDF file from an image. The output is in bytes and needs to be written to a file.

```python
# Get a searchable PDF
pdf = pytesseract.image_to_pdf_or_hocr('test.png', extension='pdf')
with open('test.pdf', 'w+b') as f:
    f.write(pdf) # pdf type is bytes by default
```

--------------------------------

### Configure Tesseract Tessdata Directory

Source: https://pypi.org/project/pytesseract

Add custom configuration to specify the Tesseract tessdata directory, useful for resolving 'Error opening data file' issues. Replace the placeholder with your actual tessdata directory path and ensure it is enclosed in double quotes.

```python
# Example config: r'--tessdata-dir "C:\Program Files (x86)\Tesseract-OCR\tessdata"'
tessdata_dir_config = r'--tessdata-dir "<replace_with_your_tessdata_dir_path>"'
pytesseract.image_to_string(image, lang='chi_sim', config=tessdata_dir_config)
```

--------------------------------

### Multiple Output Formats

Source: https://pypi.org/project/pytesseract

Retrieves multiple output formats (e.g., text, bounding boxes) in a single call to optimize performance.

```python
# getting multiple types of output with one call to save compute time
# currently supports mix and match of the following: txt, pdf, hocr, box, tsv
text, boxes = pytesseract.run_and_get_multiple_output('test.png', extensions=['txt', 'box'])
```

--------------------------------

### run_and_get_output

Source: https://pypi.org/project/pytesseract

Returns the raw output from Tesseract OCR. Gives a bit more control over the parameters that are sent to tesseract.

```APIDOC
## run_and_get_output

### Description
Returns the raw output from Tesseract OCR. Gives a bit more control over the parameters that are sent to tesseract.

### Method
`run_and_get_output(image, extension='txt', config='', nice=0, timeout=0)`

### Parameters
- **image** (Object or String) - either PIL Image, NumPy array or file path of the image to be processed by Tesseract. If you pass object instead of file path, pytesseract will implicitly convert the image to RGB mode.
- **extension** (String, optional) - The file extension for the output format. Defaults to 'txt'.
- **config** (String, optional) - Any additional custom configuration flags that are not available via the pytesseract function. For example: config='--psm 6'
- **nice** (Integer, optional) - Modifies the processor priority for the Tesseract run. Not supported on Windows. Nice adjusts the niceness of unix-like processes.
- **timeout** (Integer or Float, optional) - Duration in seconds for the OCR processing, after which, pytesseract will terminate and raise RuntimeError.

### Response
- **raw_output** (str) - The raw output from Tesseract OCR.
```

--------------------------------

### image_to_osd

Source: https://pypi.org/project/pytesseract

Returns result containing information about orientation and script detection.

```APIDOC
## image_to_osd

### Description
Returns result containing information about orientation and script detection.

### Method
`image_to_osd(image, lang='eng', config='', nice=0, output_type=Output.STRING, timeout=0)`

### Parameters
- **image** (Object or String) - either PIL Image, NumPy array or file path of the image to be processed by Tesseract. If you pass object instead of file path, pytesseract will implicitly convert the image to RGB mode.
- **lang** (String, optional) - Tesseract language code string. Defaults to eng if not specified. Example for multiple languages: lang='eng+fra'
- **config** (String, optional) - Any additional custom configuration flags that are not available via the pytesseract function. For example: config='--psm 6'
- **nice** (Integer, optional) - Modifies the processor priority for the Tesseract run. Not supported on Windows. Nice adjusts the niceness of unix-like processes.
- **output_type** (Class attribute, optional) - Specifies the type of the output, defaults to string. For the full list of all supported types, please check the definition of pytesseract.Output class.
- **timeout** (Integer or Float, optional) - Duration in seconds for the OCR processing, after which, pytesseract will terminate and raise RuntimeError.

### Response
- **osd_info** (str or other types based on output_type) - Information about orientation and script detection.
```

--------------------------------

### image_to_alto_xml

Source: https://pypi.org/project/pytesseract

Returns result in the form of Tesseract’s ALTO XML format.

```APIDOC
## image_to_alto_xml

### Description
Returns result in the form of Tesseract’s ALTO XML format.

### Method
`image_to_alto_xml(image, lang='eng', config='', nice=0, output_type=Output.STRING, timeout=0)`

### Parameters
- **image** (Object or String) - either PIL Image, NumPy array or file path of the image to be processed by Tesseract. If you pass object instead of file path, pytesseract will implicitly convert the image to RGB mode.
- **lang** (String, optional) - Tesseract language code string. Defaults to eng if not specified. Example for multiple languages: lang='eng+fra'
- **config** (String, optional) - Any additional custom configuration flags that are not available via the pytesseract function. For example: config='--psm 6'
- **nice** (Integer, optional) - Modifies the processor priority for the Tesseract run. Not supported on Windows. Nice adjusts the niceness of unix-like processes.
- **output_type** (Class attribute, optional) - Specifies the type of the output, defaults to string. For the full list of all supported types, please check the definition of pytesseract.Output class.
- **timeout** (Integer or Float, optional) - Duration in seconds for the OCR processing, after which, pytesseract will terminate and raise RuntimeError.

### Response
- **alto_xml** (str or other types based on output_type) - The ALTO XML representation of the OCR result.
```

--------------------------------

### Basic Image to String Conversion

Source: https://pypi.org/project/pytesseract

Converts an image file to a string using Tesseract OCR. Ensure the tesseract executable is in your PATH or specify its location.

```python
from PIL import Image

import pytesseract

# If you don't have tesseract executable in your PATH, include the following:
pytesseract.pytesseract.tesseract_cmd = r'<full_path_to_your_tesseract_executable>'
# Example tesseract_cmd = r'C:\Program Files (x86)\Tesseract-OCR\tesseract'

# Simple image to string
print(pytesseract.image_to_string(Image.open('test.png')))
```

```python
# In order to bypass the image conversions of pytesseract, just use relative or absolute image path
# NOTE: In this case you should provide tesseract supported images or tesseract will return error
print(pytesseract.image_to_string('test.png'))
```

--------------------------------

### OCR with Character Whitelist

Source: https://pypi.org/project/pytesseract-api

Shows how to use pytesseract-api to extract only digits from an image by setting a character whitelist. Remember to reset the whitelist after use. Requires OpenCV for image loading and 'digits.png' in your working directory.

```python
import cv2

from pytesseract_api.api import set_variable
from pytesseract_api import image_to_string

img = cv2.imread("digits.png")
set_variable("tessedit_char_whitelist", "0123456789")
text = image_to_string(img)
set_variable("tessedit_char_whitelist", "") # reset
```

--------------------------------

### OpenCV Image Support

Source: https://pypi.org/project/pytesseract

Processes images loaded with OpenCV. Requires conversion from BGR to RGB format as pytesseract assumes RGB.

```python
import cv2

img_cv = cv2.imread(r'/<path_to_image>/digits.png')

# By default OpenCV stores images in BGR format and since pytesseract assumes RGB format,
# we need to convert from BGR to RGB format/mode:
img_rgb = cv2.cvtColor(img_cv, cv2.COLOR_BGR2RGB)
print(pytesseract.image_to_string(img_rgb))
# OR
img_rgb = Image.frombytes('RGB', img_cv.shape[:2], img_cv, 'raw', 'BGR', 0, 0)
print(pytesseract.image_to_string(img_rgb))
```

--------------------------------

### Custom Tesseract Configuration

Source: https://pypi.org/project/pytesseract

Applies custom Tesseract configurations, such as OCR Engine Mode (OEM) and Page Segmentation Mode (PSM), using the `config` keyword.

```python
# Example of adding any additional options
custom_oem_psm_config = r'--oem 3 --psm 6'
pytesseract.image_to_string(image, config=custom_oem_psm_config)
```

--------------------------------

### Upgrade pytesseract-cli

Source: https://pypi.org/project/pytesseract-cli

Use this command to upgrade to the latest version of pytesseract-cli using pip.

```bash
pip install -U pytesseract-cli
```

--------------------------------

### Generate ALTO XML Output

Source: https://pypi.org/project/pytesseract

Generates ALTO XML output from an image.

```python
# Get ALTO XML output
xml = pytesseract.image_to_alto_xml('test.png')
```

--------------------------------

### image_to_boxes

Source: https://pypi.org/project/pytesseract

Returns result containing recognized characters and their box boundaries.

```APIDOC
## image_to_boxes

### Description
Returns result containing recognized characters and their box boundaries.

### Method
`image_to_boxes(image, lang=None, config='', nice=0, output_type=Output.STRING, timeout=0)`

### Parameters
- **image** (Object or String) - either PIL Image, NumPy array or file path of the image to be processed by Tesseract. If you pass object instead of file path, pytesseract will implicitly convert the image to RGB mode.
- **lang** (String, optional) - Tesseract language code string. Defaults to eng if not specified. Example for multiple languages: lang='eng+fra'
- **config** (String, optional) - Any additional custom configuration flags that are not available via the pytesseract function. For example: config='--psm 6'
- **nice** (Integer, optional) - Modifies the processor priority for the Tesseract run. Not supported on Windows. Nice adjusts the niceness of unix-like processes.
- **output_type** (Class attribute, optional) - Specifies the type of the output, defaults to string. For the full list of all supported types, please check the definition of pytesseract.Output class.
- **timeout** (Integer or Float, optional) - Duration in seconds for the OCR processing, after which, pytesseract will terminate and raise RuntimeError.

### Response
- **boxes** (str or other types based on output_type) - The recognized characters and their box boundaries.
```

--------------------------------

### image_to_string

Source: https://pypi.org/project/pytesseract

Returns unmodified output as string from Tesseract OCR processing.

```APIDOC
## image_to_string

### Description
Returns unmodified output as string from Tesseract OCR processing.

### Method
`image_to_string(image, lang=None, config='', nice=0, output_type=Output.STRING, timeout=0)`

### Parameters
- **image** (Object or String) - either PIL Image, NumPy array or file path of the image to be processed by Tesseract. If you pass object instead of file path, pytesseract will implicitly convert the image to RGB mode.
- **lang** (String, optional) - Tesseract language code string. Defaults to eng if not specified. Example for multiple languages: lang='eng+fra'
- **config** (String, optional) - Any additional custom configuration flags that are not available via the pytesseract function. For example: config='--psm 6'
- **nice** (Integer, optional) - Modifies the processor priority for the Tesseract run. Not supported on Windows. Nice adjusts the niceness of unix-like processes.
- **output_type** (Class attribute, optional) - Specifies the type of the output, defaults to string. For the full list of all supported types, please check the definition of pytesseract.Output class.
- **timeout** (Integer or Float, optional) - Duration in seconds for the OCR processing, after which, pytesseract will terminate and raise RuntimeError.

### Response
- **text** (str) - The OCR'd text from the image.
```

--------------------------------

### OCR with Timeout

Source: https://pypi.org/project/pytesseract

Sets a timeout for the Tesseract OCR process to prevent indefinite execution. Catches `RuntimeError` if the timeout is reached.

```python
# Timeout/terminate the tesseract job after a period of time
try:
    print(pytesseract.image_to_string('test.jpg', timeout=2)) # Timeout after 2 seconds
    print(pytesseract.image_to_string('test.jpg', timeout=0.5)) # Timeout after half a second
except RuntimeError as timeout_error:
    # Tesseract processing is terminated
    pass
```

--------------------------------

### image_to_data

Source: https://pypi.org/project/pytesseract

Returns result containing box boundaries, confidences, and other information. Requires Tesseract 3.05+.

```APIDOC
## image_to_data

### Description
Returns result containing box boundaries, confidences, and other information. Requires Tesseract 3.05+. For more information, please check the Tesseract TSV documentation.

### Method
`image_to_data(image, lang=None, config='', nice=0, output_type=Output.STRING, timeout=0, pandas_config=None)`

### Parameters
- **image** (Object or String) - either PIL Image, NumPy array or file path of the image to be processed by Tesseract. If you pass object instead of file path, pytesseract will implicitly convert the image to RGB mode.
- **lang** (String, optional) - Tesseract language code string. Defaults to eng if not specified. Example for multiple languages: lang='eng+fra'
- **config** (String, optional) - Any additional custom configuration flags that are not available via the pytesseract function. For example: config='--psm 6'
- **nice** (Integer, optional) - Modifies the processor priority for the Tesseract run. Not supported on Windows. Nice adjusts the niceness of unix-like processes.
- **output_type** (Class attribute, optional) - Specifies the type of the output, defaults to string. For the full list of all supported types, please check the definition of pytesseract.Output class.
- **timeout** (Integer or Float, optional) - Duration in seconds for the OCR processing, after which, pytesseract will terminate and raise RuntimeError.
- **pandas_config** (Dict, optional) - Only for the Output.DATAFRAME type. Dictionary with custom arguments for pandas.read_csv. Allows you to customize the output of image_to_data.

### Response
- **data** (str or pandas.DataFrame) - The result containing box boundaries, confidences, and other information.
```

--------------------------------

### get_languages

Source: https://pypi.org/project/pytesseract

Returns all currently supported languages by Tesseract OCR.

```APIDOC
## get_languages

### Description
Returns all currently supported languages by Tesseract OCR.

### Method
`get_languages()`

### Parameters
None

### Response
- **languages** (List[str]) - A list of supported language codes.
```

--------------------------------

### Batch Processing Images

Source: https://pypi.org/project/pytesseract

Processes multiple images listed in a text file for OCR.

```python
# Batch processing with a single file containing the list of multiple image file paths
print(pytesseract.image_to_string('images.txt'))
```

--------------------------------

### Generate HOCR Output

Source: https://pypi.org/project/pytesseract

Generates HOCR (HTML Object Recognition) output from an image.

```python
# Get HOCR output
hocr = pytesseract.image_to_pdf_or_hocr('test.png', extension='hocr')
```

--------------------------------

### OCR with Specific Language

Source: https://pypi.org/project/pytesseract

Performs OCR on an image, specifying the language for recognition (e.g., French).

```python
# French text image to string
print(pytesseract.image_to_string(Image.open('test-european.jpg'), lang='fra'))
```

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