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comparison python/ml.py @ 680:da1352b89d02 dev

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classification is working
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Fri, 05 Jun 2015 02:25:30 +0200
parents 15e244d2a1b5
children b02431a8234c
comparison
equal deleted inserted replaced
678:97c305108460 680:da1352b89d02
4 import numpy as np 4 import numpy as np
5 5
6 6
7 class Model(object): 7 class Model(object):
8 '''Abstract class for loading/saving model''' 8 '''Abstract class for loading/saving model'''
9 def load(self, fn): 9 def load(self, filename):
10 self.model.load(fn) 10 from os import path
11 if path.exists(filename):
12 self.model.load(filename)
13 else:
14 print('Provided filename {} does not exist: model not loaded!'.format(filename))
11 15
12 def save(self, fn): 16 def save(self, filename):
13 self.model.save(fn) 17 self.model.save(filename)
14 18
15 class SVM(Model): 19 class SVM(Model):
16 '''wrapper for OpenCV SimpleVectorMachine algorithm''' 20 '''wrapper for OpenCV SimpleVectorMachine algorithm'''
17 21
18 def __init__(self, svm_type, kernel_type, degree = 0, gamma = 1, coef0 = 0, Cvalue = 1, nu = 0, p = 0): 22 def __init__(self):
19 import cv2 23 import cv2
20 self.model = cv2.SVM() 24 self.model = cv2.SVM()
25
26 def train(self, samples, responses, svm_type, kernel_type, degree = 0, gamma = 1, coef0 = 0, Cvalue = 1, nu = 0, p = 0):
21 self.params = dict(svm_type = svm_type, kernel_type = kernel_type, degree = degree, gamma = gamma, coef0 = coef0, Cvalue = Cvalue, nu = nu, p = p) 27 self.params = dict(svm_type = svm_type, kernel_type = kernel_type, degree = degree, gamma = gamma, coef0 = coef0, Cvalue = Cvalue, nu = nu, p = p)
22
23 def train(self, samples, responses):
24 self.model.train(samples, responses, params = self.params) 28 self.model.train(samples, responses, params = self.params)
25 29
26 def predict(self, samples): 30 def predict(self, hog):
27 return np.float32([self.model.predict(s) for s in samples]) 31 return self.model.predict(hog)
28 32
29 33
30 class Centroid(object): 34 class Centroid(object):
31 'Wrapper around instances to add a counter' 35 'Wrapper around instances to add a counter'
32 36