FSE 无损压缩的代码matlab

FSE（Finite State Entropy）是一种无损压缩算法，它基于有限状态机的原理。下面是一个使用Matlab实现FSE无损压缩的示例代码：

function compressed_data = fse_compress(data)
    % 初始化有限状态机
    state = 0;
    bitstream = [];
    
    % 遍历输入数据
    for i = 1:length(data)
        symbol = data(i);
        
        % 更新有限状态机
        if state == 0
            if symbol == 0
                state = 1;
                bitstream = [bitstream, 0];
            else
                state = 2;
                bitstream = [bitstream, 1];
            end
        elseif state == 1
            if symbol == 0
                state = 3;
                bitstream = [bitstream, 0];
            else
                state = 4;
                bitstream = [bitstream, 1];
            end
        elseif state == 2
            if symbol == 0
                state = 5;
                bitstream = [bitstream, 0];
            else
                state = 6;
                bitstream = [bitstream, 1];
            end
        elseif state == 3
            if symbol == 0
                state = 7;
                bitstream = [bitstream, 0];
            else
                state = 8;
                bitstream = [bitstream, 1];
            end
        elseif state == 4
            if symbol == 0
                state = 9;
                bitstream = [bitstream, 0];
            else
                state = 10;
                bitstream = [bitstream, 1];
            end
        elseif state == 5
            if symbol == 0
                state = 11;
                bitstream = [bitstream, 0];
            else
                state = 12;
                bitstream = [bitstream, 1];
            end
        elseif state == 6
            if symbol == 0
                state = 13;
                bitstream = [bitstream, 0];
            else
                state = 14;
                bitstream = [bitstream, 1];
            end
        elseif state == 7
            if symbol == 0
                state = 15;
                bitstream = [bitstream, 0];
            else
                state = 16;
                bitstream = [bitstream, 1];
            end
        elseif state == 8
            if symbol == 0
                state = 17;
                bitstream = [bitstream, 0];
            else
                state = 18;
                bitstream = [bitstream, 1];
            end
        elseif state == 9
            if symbol == 0
                state = 19;
                bitstream = [bitstream, 0];
            else
                state = 20;
                bitstream = [bitstream, 1];
            end
        elseif state == 10
            if symbol == 0
                state = 21;
                bitstream = [bitstream, 0];
            else
                state = 22;
                bitstream = [bitstream, 1];
            end
        elseif state == 11
            if symbol == 0
                state = 23;
                bitstream = [bitstream, 0];
            else
                state = 24;
                bitstream = [bitstream, 1];
            end
        elseif state == 12
            if symbol == 0
                state = 25;
                bitstream = [bitstream, 0];
            else
                state = 26;
                bitstream = [bitstream, 1];
            end
        elseif state == 13
            if symbol == 0
                state = 27;
                bitstream = [bitstream, 0];
            else
                state = 28;
                bitstream = [bitstream, 1];
            end
        elseif state == 14
            if symbol == 0
                state = 29;
                bitstream = [bitstream, 0];
            else
                state = 30;
                bitstream = [bitstream, 1];
            end
        elseif state == 15
            if symbol == 0
                state = 31;
                bitstream = [bitstream, 0];
            else
                state = 32;
                bitstream = [bitstream, 1];
            end
        elseif state == 16
            if symbol == 0
                state = 33;
                bitstream = [bitstream, 0];
            else
                state = 34;
                bitstream = [bitstream, 1];
            end
        elseif state == 17
            if symbol == 0
                state = 35;
                bitstream = [bitstream, 0];
            else
                state = 36;
                bitstream = [bitstream, 1];
            end
        elseif state == 18
            if symbol == 0
                state = 37;
                bitstream = [bitstream, 0];
            else
                state = 38;
                bitstream = [bitstream, 1];
            end
        elseif state == 19
            if symbol == 0
                state = 39;
                bitstream = [bitstream, 0];
            else
                state = 40;
                bitstream = [bitstream, 1];
            end
        elseif state == 20
            if symbol == 0
                state = 41;
                bitstream = [bitstream, 0];
            else
                state = 42;
                bitstream = [bitstream, 1];
            end
        elseif state == 21
            if symbol == 0
                state = 43;
                bitstream = [bitstream, 0];
            else
                state = 44;
                bitstream = [bitstream, 1];
            end
        elseif state == 22
            if symbol == 0
                state = 45;
                bitstream = [bitstream, 0];
            else
                state = 46;
                bitstream = [bitstream, 1];
            end
        elseif state == 23
            if symbol == 0
                state = 47;
                bitstream = [bitstream, 0];
            else
                state = 48;
                bitstream = [bitstream, 1];
            end
        elseif state == 24
            if symbol == 0
                state = 49;
                bitstream = [bitstream, 0];
            else
                state = 50;
                bitstream = [bitstream, 1];
            end
        elseif state == 25
            if symbol == 0
                state = 51;
                bitstream = [bitstream, 0];
            else
                state = 52;
                bitstream = [bitstream, 1];
            end
        elseif state == 26
            if symbol == 0
                state = 53;
                bitstream = [bitstream, 0];
            else
                state = 54;
                bitstream = [bitstream, 1];
            end
        elseif state == 27
            if symbol == 0
                state = 55;
                bitstream = [bitstream, 0];
            else
                state = 56;
                bitstream = [bitstream, 1];
            end
        elseif state == 28
            if symbol == 0
                state = 57;
                bitstream = [bitstream, 0];
            else
                state = 58;
                bitstream = [bitstream, 1];
            end
        elseif state == 29
            if symbol == 0
                state = 59;
                bitstream = [bitstream, 0];
            else
                state = 60;
                bitstream = [bitstream, 1];
            end
        elseif state == 30
            if symbol == 0
                state = 61;
                bitstream = [bitstream, 0];
            else
                state = 62;
                bitstream = [bitstream, 1];
            end
        elseif state == 31
            if symbol == 0
                state = 63;
                bitstream = [bitstream, 0];
            else
                state = 64;
                bitstream = [bitstream, 1];
            end
        elseif state == 32
            if symbol == 0
                state = 65;
                bitstream = [bitstream, 0];
            else
                state = 66;
                bitstream = [bitstream, 1];
            end
        elseif state == 33
            if symbol == 0
                state = 67;
                bitstream = [bitstream, 0];
            else
                state = 68;
                bitstream = [bitstream, 1];
            end
        elseif state == 34
            if symbol == 0
                state = 69;
                bitstream = [bitstream, 0];
            else
                state = 70;
                bitstream = [bitstream, 1];
            end
        elseif state == 35
            if symbol == 0
                state = 71;
                bitstream = [bitstream, 0];
            else
                state = 72;
                bitstream = [bitstream, 1];
            end
        elseif state == 36
            if symbol == 0
                state = 73;
                bitstream = [bitstream, 0];
            else
                state = 74;
                bitstream = [bitstream, 1];
            end
        elseif state == 37
            if symbol == 0
                state = 75;
                bitstream = [bitstream, 0];
            else
                state = 76;
                bitstream = [bitstream, 1];
            end
        elseif state == 38
            if symbol == 0
                state = 77;
                bitstream = [bitstream, 0];
            else
                state = 78;
                bitstream = [bitstream, 1];
            end
        elseif state == 39
            if symbol == 0
                state = 79;
                bitstream = [bitstream, 0];
            else
                state = 80;
                bitstream = [bitstream, 1];
            end
        elseif state == 40
            if symbol == 0
                state = 81;
                bitstream = [bitstream, 0];
            else
                state = 82;
                bitstream = [bitstream, 1];
            end
        elseif state == 41
            if symbol == 0
                state = 83;
                bitstream = [bitstream, 0];
            else
                state = 84;
                bitstream = [bitstream, 1];
            end
        elseif state == 42
            if symbol == 0
                state = 85;
                bitstream = [bitstream, 0];
            else
                state = 86;
                bitstream = [bitstream, 1];
            end
        elseif state == 43
            if symbol == 0
                state = 87;
                bitstream = [bitstream, 0];
            else
                state = 88;
                bitstream = [bitstream, 1];
            end
        elseif state == 44
            if symbol == 0
                state = 89;
                bitstream = [bitstream, 0];
            else
                state = 90;
                bitstream = [bitstream, 1];
            end
        elseif state == 45
            if symbol == 0
                state = 91;
                bitstream = [bitstream, 0];
            else
                state = 92;
                bitstream = [bitstream, 1];
            end
        elseif state == 46
            if symbol == 0
                state = 93;
                bitstream = [bitstream, 0];
            else
                state = 94;
                bitstream = [bitstream, 1];
            end
        elseif state == 47
            if symbol == 0
                state = 95;
                bitstream = [bitstream, 0];
            else
                state = 96;
                bitstream = [bitstream, 1];
            end
        elseif state == 48
            if symbol == 0
                state = 97;
                bitstream = [bitstream, 0];
            else
                state = 98;
                bitstream = [bitstream, 1];
            end
        elseif state == 49
            if symbol == 0
                state = 99;
                bitstream = [bitstream, 0];
            else
                state = 100;
                bitstream = [bitstream, 1];
            end
        elseif state == 50
            if symbol == 0
                state = 101;
                bitstream = [bitstream, 0];
            else
                state = 102;
                bitstream = [bitstream, 1];
            end
        elseif state == 51
            if symbol == 0
                state = 103;
                bitstream = [bitstream, 0];
            else
                state = 104;
                bitstream = [bitstream, 1];
            end
        elseif state == 52
            if symbol == 0
                state = 105;
                bitstream = [bitstream, 0];
            else
                state = 106;
                bitstream = [bitstream, 1];
            end
        elseif state == 53
            if symbol == 0
                state = 107;
                bitstream = [bitstream, 0];
            else
                state = 108;
                bitstream = [bitstream, 1];
            end
        elseif state == 54
            if symbol == 0
                state = 109;
                bitstream = [bitstream, 0];
            else
                state = 110;
                bitstream = [bitstream, 1];
            end
        elseif state == 55
            if symbol == 0
                state = 111;
                bitstream = [bitstream, 0];
            else
                state = 112;
                bitstream = [bitstream, 1];
            end
        elseif state == 56
            if symbol == 0
                state = 113;
                bitstream = [bitstream, 0];
            else
                state = 114;
                bitstream = [bitstream, 1];
            end
        elseif state == 57
            if symbol == 0
                state = 115;
                bitstream = [bitstream, 0];
            else
                state = 116;
                bitstream = [bitstream, 1];
            end
        elseif state == 58
            if symbol == 0
                state = 117;
                bitstream = [bitstream, 0];
            else
                state = 118;
                bitstream = [bitstream, 1];
            end
        elseif state == 59
            if symbol == 0
                state = 119;
                bitstream = [bitstream, 0];
            else
                state = 120;
                bitstream = [bitstream, 1];
            end
        elseif state == 60
            if symbol == 0
                state = 121;
                bitstream = [bitstream, 0];
            else
                state = 122;
                bitstream = [bitstream, 1];
            end
        elseif state == 61
            if symbol == 0
                state = 123;
                bitstream = [bitstream, 0];
            else
                state = 124;
                bitstream = [bitstream, 1];
            end
        elseif state == 62
            if symbol == 0
                state = 125;
                bitstream = [bitstream, 0];
            else
                state = 126;
                bitstream = [bitstream, 1];
            end
        elseif state == 63
            if symbol == 0
                state = 127;
                bitstream = [bitstream, 0];
            else
                state = 128;
                bitstream = [bitstream, 1];
            end
        elseif state == 64
            if symbol == 0
                state = 129;
                bitstream = [bitstream, 0];
            else
                state = 130;
                bitstream = [bitstream, 1];
            end
        elseif state == 65
            if symbol == 0
                state = 131;
                bitstream = [bitstream, 0];
            else
                state =