Detecting Dragons

How to use

First download all template*.png

import cv2
from detect_sift import DragonDetector # or DragonDetectorFast
det = DragonDetector()
img = cv2.imread('test.png')
if det.is_dragon(img) :
    print('龙')
else :
    print('正常')

Performance

Tuned for zero false positive.

DragonDetector

2.4 images/sec

Confusion matrix	Positive	Negative
Positive	38	20
Negative	0	194

DragonDetectorFast

37.45 images/sec

Confusion matrix	Positive	Negative
Positive	32	26
Negative	0	194