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https://github.com/x-hw/amazing-qr.git
synced 2025-07-09 01:05:34 +02:00
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5
ecc.py
5
ecc.py
@ -27,10 +27,11 @@ def divide(MP, *GP):
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GP[i] %= 255
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GP[i] = po2[GP[i]]
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return XOR(MP, GP)
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return XOR(GP, *MP)
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def XOR(MP, GP):
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def XOR(GP, *MP):
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MP = list(MP)
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a = len(MP) - len(GP)
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if a < 0:
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MP += [0] * (-a)
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92
matrix.py
92
matrix.py
@ -18,10 +18,15 @@ def get_qrmatrix(ver, ecl, bits):
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# Add the Dark Module and Reserved Areas
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add_dark_and_reserving(ver, qrmatrix)
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maskmatrix = [i[:] for i in qrmatrix]
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# Place the Data Bits
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place_bits(bits, qrmatrix)
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# Data Masking
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mask_num, qrmatrix = mask(maskmatrix, qrmatrix)
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# Format and Version Information
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return qrmatrix
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@ -57,8 +62,9 @@ def add_timing(m):
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m[i][6] = m[6][i] = 1 if i % 2 ==0 else 0
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def add_dark_and_reserving(ver, m):
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for j in range(9):
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for j in range(8):
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m[8][j] = m[8][-j-1] = m[j][8] = m[-j-1][8] = 0
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m[8][8] = 0
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m[8][6] = m[6][8] = m[-8][8] = 1
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if ver > 6:
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@ -79,7 +85,83 @@ def place_bits(bits, m):
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m[i][j] = next(bit)
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up = not up
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if __name__ == '__main__':
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m = get_qrmatrix(7,'H',1)
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for i in range(len(m)):
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print(m[i])
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def mask(mm, m):
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mps = get_mask_patterns(mm)
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scores = []
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for mp in mps:
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for i in len(mp):
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for j in len(mp):
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mp[i][j] = mp[i][j] ^ m[i][j]
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scores.append(compute_score(mp))
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best = scores.index(min(scores))
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return best, mps[best]
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def get_mask_patterns(mm):
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mm[-8][8] = None
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for i in range(len(mm)):
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for j in range(len(mm)):
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mm[i][j] = 0 if mm[i][j] is not None else mm[i][j]
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mps = []
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for i in range(8):
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mp = [ii[:] for ii in mm]
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for row in len(mp):
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for column in len(mp):
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mp[row][column] = 1 if mp[row][column] is None and formula(i, row, column) else 0
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mps.append(mp)
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return mps
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def formula(i, row, column):
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if i == 0:
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return (row + column) % 2 == 0
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elif i == 1:
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return row % 2 == 0
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elif i == 2:
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return column % 3 == 0
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elif i == 3:
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return (row + column) % 3 == 0
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elif i == 4:
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return
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elif i == 5:
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return ((row * column) % 2) + ((row * column) % 3) == 0
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elif i == 6:
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return (((row * column) % 2) + ((row * column) % 3)) % 2 == 0
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elif i == 7:
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return (((row + column) % 2) + ((row * column) % 3)) % 2 == 0
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def compute_score(m):
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score = evaluation1(m) + evaluation2(m)+ evalutaion3(m) + evaluation4(m)
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return score
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def evaluation1(m):
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def ev1(ma):
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sc = 0
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for mi in ma:
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j = 0
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while j < len(mi)-4:
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n = 4
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while mi[j:j+n+1] in [[1]*(n+1), [0]*(n+1)]:
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n += 1
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(sc, j) = (sc+n-2, j+n) if n > 4 else (sc, j+1)
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return sc
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return ev1(m) + ev1(list(map(list, zip(*m))))
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def evaluation2(m):
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sc = 0
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for i in range(len(m)-1):
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for j in range(len(m)-1):
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sc += 3 if m[i][j] == m[i+1][j] == m[i][j+1] == m[i+1][j+1] else 0
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return sc
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def evaluation3(m):
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pass
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def evaluation4(m):
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darknum = 0
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for i in m:
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darknum += sum(i)
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percent = darknum / (len(m)**2) * 100
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(50 - percent) / 5 * 5
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@ -7,17 +7,22 @@ def get_qrcode(ecl, str):
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try:
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# Data Coding
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ver, data_codewords = data.encode(ecl, str)
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ndc = 0
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for i in range(len(data_codewords)):
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ndc += len(data_codewords[i])
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# Error Correction Coding
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ecc = ECC.encode(ver, ecl, data_codewords)
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ndc = 0
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for i in range(len(data_codewords)):
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ndc += len(data_codewords[i])
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# Structure final bits
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final_bits = structure.structure_final_bits(ver, ecl, data_codewords, ecc)
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# Get the QR Matrix
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qrmatrix = matrix.get_qrmatrix(ver, ecl, final_bits)
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for i in qrmatrix:
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print(i)
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# Draw the picture
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draw.draw_qrcode(qrmatrix)
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