ehdg-pupil-detector 3.4.1

Python Library for Pupil Detector of Eye Health Diagnostic Group

EYE HEALTH DIAGNOSTIC GROUP'S PUPIL DETECTOR (ehdg_pupil_detector)

This is the python package libray pupil detector created by eye health diagnostic group.

Installtion

pip install ehdg_pupil_detector

Updating

pip install ehdg_pupil_detector -U

Class Initialization and Attributes

Class Initialization with defaults

from ehdg_pupil_detector import ehdg_pupil_detector

detector = ehdg_pupil_detector.Detector()

If you do not specify any argument, it will use default vales are as follows:

1. config
   Default = None
   If it is None then it will use following config parameters:
   1. min_circular_ratio = 0.9
   2. max_circular_ratio = 1.9
   3. ksize_height = 13
   4. ksize_width = 13
   5. min_binary_threshold = 20
   6. max_binary_threshold = 255
   7. reflection_fill_dilation_index = 25
   8. reflection_fill_square_dimension = 200
2. reflection_fill_color_index
   Default = 0 (black)
   0 means black and 255 means white in the gray scale.
   It will cover the reflection on the pupil with black before using any other filters.
3. gaussian_blur
   Default = True
   It will use gaussian blur filter.
4. binary_fill_hole
   Default = True
   It will use binary fill hole function filter.

Class Initialization with custom values

from ehdg_pupil_detector import ehdg_pupil_detector

custom_config = {
    "min_circular_ratio": 0.9,
    "max_circular_ratio": 1.9,
    "ksize_height": 13,
    "ksize_width": 13,
    "min_binary_threshold": 20,
    "max_binary_threshold": 255,
    "reflection_fill_dilation_index": 25,
    "reflection_fill_square_dimension": 200
}

detector = ehdg_pupil_detector.Detector(config=custom_config, reflection_fill_color_index=0, gaussian_blur=True,
                                        binary_fill_hole=True)

The reflection_fill_color_index must be between 0 and 255.
It is indexing how black or white gonna cover on the reflection of the pupil.
0 index is blackest and 255 index is whitest.
If you wanna turn off reflection fill function, add

reflection_fill_color_index=False

instead of

reflection_fill_color_index=0

Class Function

get_config_info()

It is to check the current config information.

from src.ehdg_pupil_detector import ehdg_pupil_detector

custom_config = {
    "min_circular_ratio": 0.9,
    "max_circular_ratio": 1.9,
    "ksize_height": 13,
    "ksize_width": 13,
    "min_binary_threshold": 20,
    "max_binary_threshold": 255,
    "reflection_fill_dilation_index": 25,
    "reflection_fill_square_dimension": 200
}

detector = ehdg_pupil_detector.Detector(config=custom_config, reflection_fill_color_index=0, gaussian_blur=True,
                                        binary_fill_hole=True)

for info in detector.get_config_info():
    print(f"{info}: {detector.get_config_info()[info]}")

Output will be:

min_circular_ratio: 0.9
max_circular_ratio: 1.9
ksize_height: 13
ksize_width: 13
min_binary_threshold: 20
max_binary_threshold: 255
reflection_fill_dilation_index: 25
reflection_fill_square_dimension: 200