Holds the source for the algorithm that used to crack the captcha at VIT University's Academic Portal. Now, they use ReCaptcha by Google. This is how it looked like, earlier.

Maintained in a seperate repository

Present on the DEV website.

• Install the PIL Library(Pillow)

pip install pillow

• Enter the Python Directory

cd Python

• Run the command for the test image

python algorithm/parser.py

• For a performance measure, run

python performance.py

• For the preprocessing, run the following after deleting all folders execpt downloaded captchas

cd Python/preprocessing
python reduce-noise.py
python crop_chars.py
python character_sort.py
python best_chars.py

• Pick a character from the best ones as per the alphanumeric set and rename it after placing in library-chars.
• Run the following to generate your bitmaps

python generate_bitmaps.py

MIT