Denomination and coins recognition

Example of using Python 3 to process images.

Example of usage:

python deno_recognition.py simple_01.bmp

In common_image_utils.py you will find base classes and some utils for processing images. In coins.py and in denominations.py you will find concrete implementations for recognition coins and denominations values.

Algorythm is simple:

• Transform image to "edgie" with cv2.Canny method
• Find contours on that "edie" image with cv2.findContours
• Iterate over found contours
• If the contour is rectangle then consider it is a paper denomination and recognize it via DenominationImageValueProvider
• If the contour is circle then consider it is a coin and recognize value via CoinImageValueProvider
• Recognition is very simple and based on "amount" of color in the cropped contour or on ratio to black color. Very simple level of recognition

Welcome:)