This project downloads all the card images from http://gatherer.wizards.com/Pages/Default.aspx and saves them in the folder cardImages/ with their name and set.

The images can be used to build a database of perceptual hashes.

Since each card artwork has a unique perceptual hash, they can be compared with perceptual hashes of a card in a picture to identify them.

If a card is identified, the information can be input into http://shop.tcgplayer.com/magic for the user to quickly get the price.

#Dependencies To run these programs you will need the python libraries BeautifulSoup, requests, imagehash, PIL, and psycopg2.

pip install BeautifulSoup requests imagehash PIL psycopg2

git clone https://github.com/eulerto/pg_similarity.git
cd pg_similarity/
USE_PGXS=1 make
USE_PGXS=1 make install

In postgres:

CREATE EXTENSION pg_similarity;

#Use Download Images

sudo python scrapeImages.py

This downloads all the card images from http://gatherer.wizards.com/Pages/Default.aspx and saves them in the folder cardImages/ with their name and set.

The folder of pictures ends up being 1.21 GB and it takes about 25 minutes to download.

Setup The Database

Once postgres is installed, create a database and table needed for the python script.

psql
create database cardimages;
\c cardimages
create table phash(name text, set text, hash text);

Build The Database

sudo python buildDatabase.py

Populates a postgresql database with card name, set, and a perceptual hash of the artwork from the images downloaded with scrapeImages.py

Test A Card

sudo python queryDatabase.py