how can I apply radix sort for this code?

clc           
clear all
close all

Q75 = [8    6    5    8    12    20    26    31;       
    6    6    7    10    13    29    30    28;
    7    7    8    12    20    29    35    28;
    7    9    11    15    26    44    40    31;
    9    11    19    28    34   55   52    39;
    12    18    28    32    41   52   57    46;
    25    32    39    44   52   61   60   52;
    36    46    48    49   56   50   52    50 ];
i1=imread('tamp6.jpg');                               
i2=rgb2gray(i1);                                      
figure,imshow(i2), title('Before Rclose esize');
i2=imresize(i2, [128 128]);                           
figure, imshow(i2); title('i2');
[row, col] = size(i2);
i2=im2double(i2);                                     
  
count5=0;
V=zeros(64,1);                                        
counti=0;countj=0;S=zeros(1,2);add2=zeros(size(S));   
Blocks2 = cell(row/8,col/8);                          
for i=1:row-7
    counti = counti + 1;
   countj = 0;
    for j=1:col-7
         
        countj = countj + 1;
        Blocks2{i,j} = i2(i:i+7,j:j+7);
       count5=count5+1;
        D = dctmtx(size(Blocks2{i,j},1));             
        dct = D*Blocks2{i,j}*D';   

[KALYAN ACHARJYA]

Is there any issue?

[sm akash]

no

[Walter Roberson]

What would you be sorting? What radix do you want to use? What is your proposal on how to convert an input number to the given radix?