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vector.py
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vector.py
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#!/usr/bin/env python3
def average(vector, size, res_vector):
#cur_res_vector = []
a_vector = []
index = 0
for i in range(int(size/2)):
a_vector.append( int((vector[index] + vector[index+1]) / 2) )
res_vector.append( int((vector[index] - vector[index+1]) / 2) )
index += 2
#print("------Step------")
#print("a_vector: ", a_vector)
#print("res_vector: ", res_vector)
#if size == 1:
#res_vector.append(a_vector[0])
return a_vector
def wavelet_transform(vector, size):
current_result_vector = []
tmp = []
tmp = average(vector, size, current_result_vector)
size = size / 2
while size != 1:
tmp = average( tmp, size, current_result_vector)
size = int( size / 2 )
current_result_vector.append(tmp[0])
last_a = current_result_vector.pop( len(current_result_vector) - 1 )
#print(current_result_vector)
#print(last_a)
current_result_vector.insert(0, last_a)
#print(current_result_vector)
return current_result_vector
"""def rev_vect(vector):
print("a")
return 1
print("b")
for i in range(1):
print(i)
#tmp = []
#tmp.extend(vector)
#tmp.reverse()
#return tmp
"""
#________________________________________________________________________________
# opening file and reading data
file_name = "new.wav"
input_file = open(file_name, 'rb')
print("File \"",file_name, "\" is opened!")
print("Info:")
input_data = input_file.read(64)
for i in range(44):
print( i, ": ", input_data[i] )
#sample_vector = [13, 11, 15, 12, 21, 9, 13, 56]
print("Sample vector: ", input_data)
size = 8
result_vector = []
result_vector = wavelet_transform(input_data, size)
print("Result vector: ", result_vector)