function Imagedecoding=DecodingDNAImagemnIKeyDecimalKeyFeature DNArules = 11003322; 03121203; 30212130; 22330011; d1 = KeyDecimal1; d2 =

import numpy as np

def DecodingDNAImage(m, n, I, KeyDecimal, KeyFeature): d1 = KeyDecimal[0] d2 = KeyDecimal[1] d3 = KeyDecimal[2] d4 = KeyDecimal[3] d5 = KeyDecimal[4] d6 = KeyDecimal[5] d7 = KeyDecimal[6] d8 = KeyDecimal[7] xx = np.bitwise_xor(np.bitwise_xor(np.bitwise_xor(np.bitwise_xor(np.bitwise_xor(np.bitwise_xor(np.bitwise_xor(d1, d2), d3), d4), d5), d6), d7), d8) ^ KeyFeature) / 256 u = 3.89 + xx * 0.01

d1 = KeyDecimal[8]
d2 = KeyDecimal[9]
d3 = KeyDecimal[10]
d4 = KeyDecimal[11]
d5 = KeyDecimal[12]
d6 = KeyDecimal[13]
d7 = KeyDecimal[14]
d8 = KeyDecimal[15]
x = np.bitwise_xor(np.bitwise_xor(np.bitwise_xor(np.bitwise_xor(np.bitwise_xor(np.bitwise_xor(np.bitwise_xor(d1, d2), d3), d4), d5), d6), d7), d8) ^ KeyFeature) / 256

Len = d1 + d2 + d3 + KeyFeature
for i in range(Len):
    x = u * x * (1 - x)

Len4mn = 4 * n * m
x[0] = x
for i in range(1, Len4mn):
    x[i] = u * x[i-1] * (1 - x[i-1])
LogisticSeq = x

R = np.floor(8 * LogisticSeq) + 1

DecodeDNA = np.zeros((4 * n * m, 1))
for i in range(Len4mn):
    switch R[i]:
        case 1:
            switch I[i]:
                case 0:
                    DecodeDNA[i] = 1
                case 1:
                    DecodeDNA[i] = 0
                case 2:
                    DecodeDNA[i] = 3
                case 3:
                    DecodeDNA[i] = 2

        case 2:
            switch I[i]:
                case 0:
                    DecodeDNA[i] = 2
                case 1:
                    DecodeDNA[i] = 0
                case 2:
                    DecodeDNA[i] = 3
                case 3:
                    DecodeDNA[i] = 1

        case 3:
            switch I[i]:
                case 0:
                    DecodeDNA[i] = 0
                case 1:
                    DecodeDNA[i] = 1
                case 2:
                    DecodeDNA[i] = 2
                case 3:
                    DecodeDNA[i] = 3

        case 4:
            switch I[i]:
                case 0:
                    DecodeDNA[i] = 0
                case 1:
                    DecodeDNA[i] = 2
                case 2:
                    DecodeDNA[i] = 1
                case 3:
                    DecodeDNA[i] = 3

        case 5:
            switch I[i]:
                case 0:
                    DecodeDNA[i] = 3
                case 1:
                    DecodeDNA[i] = 1
                case 2:
                    DecodeDNA[i] = 2
                case 3:
                    DecodeDNA[i] = 0

        case 6:
            switch I[i]:
                case 0:
                    DecodeDNA[i] = 3
                case 1:
                    DecodeDNA[i] = 2
                case 2:
                    DecodeDNA[i] = 1
                case 3:
                    DecodeDNA[i] = 0

        case 7:
            switch I[i]:
                case 0:
                    DecodeDNA[i] = 1
                case 1:
                    DecodeDNA[i] = 3
                case 2:
                    DecodeDNA[i] = 0
                case 3:
                    DecodeDNA[i] = 2

        case 8:
            switch I[i]:
                case 0:
                    DecodeDNA[i] = 2
                case 1:
                    DecodeDNA[i] = 3
                case 2:
                    DecodeDNA[i] = 0
                case 3:
                    DecodeDNA[i] = 1

Imagedecoding = np.zeros((m * n, 1))
sign = 1
num = 0
for i in range(0, Len4mn, 4):
    for j in range(i, i+4):
        switch j % 4:
            case 1:
                num = num + DecodeDNA[j] * 64
            case 2:
                num = num + DecodeDNA[j] * 16
            case 3:
                num = num + DecodeDNA[j] * 4
            case 0:
                num = num + DecodeDNA[j] * 1
                Imagedecoding[sign] = num
                num = 0
                sign = sign + 1

Imagedecoding = np.reshape(Imagedecoding, (m, n))

return Imagedecodin