bow_utils.py 文件源码

def get_histogram(self, data): 
        """
        Project the descriptions on to the codebook/vocabulary, 
        returning the histogram of words
        [N x 1] => [1 x K] histogram
        """
        if self.method == 'vq' or self.method == 'bow': 
            code = self.get_code(data)
            code_hist = self.bow(data, code, self.K)
        elif self.method == 'vlad': 
            code = self.get_code(data)
            code_hist = self.vlad(data, code)
        elif self.method == 'fisher': 
            code = self.get_code(data)
            code_hist = self.fisher(data, code)
        else: 
            raise NotImplementedError('''Histogram method %s not implemented. '''
                                      '''Use vq/bow or vlad or fisher!''' % self.method)            
        return code_hist