please help me with this

matrix A ,B,C and D are of 1 × 22 and the directory contain 3 images so F should he 3 ×88 but it is coming 1×88.please help.

location = ('F:\New folder'); % folder in which your images exists
 ds = imageDatastore(location);
 offsets = [0 1; -1 1;-1 0;-1 -1];
 while hasdata(ds)
      i = read(ds) ;             % read image from datastore
   glcm1 = graycomatrix(i,'numlevels',8,'offset',[0 1]);

[out] = GLCM_Features1(glcm1);
 A=[out.autoc out.contr out.corrm out.corrp out.cprom out.cshad out.dissi out.energ out.entro out.homom out.homop out.maxpr out.sosvh out.savgh out.svarh out.senth out.dvarh out.denth out.inf1h out.inf2h out.indnc out.idmnc];
glcm2 = graycomatrix(i,'numlevels',8,'offset',[-1,1]);
[out1] = GLCM_Features1(glcm2);
 B=[out1.autoc out1.contr out1.corrm out1.corrp out1.cprom out1.cshad out1.dissi out1.energ out1.entro out1.homom out1.homop out1.maxpr out1.sosvh out1.savgh out1.svarh out1.senth out1.dvarh out1.denth out1.inf1h out1.inf2h out1.indnc out1.idmnc];
glcm3 = graycomatrix(i,'numlevels',8,'offset',[-1,0]);

[out2] = GLCM_Features1(glcm3);
 C=[out2.autoc out2.contr out2.corrm out2.corrp out2.cprom out2.cshad out2.dissi out2.energ out2.entro out2.homom out2.homop out2.maxpr out2.sosvh out2.savgh out2.svarh out2.senth out2.dvarh out2.denth out2.inf1h out2.inf2h out2.indnc out2.idmnc];
 glcm4= graycomatrix(i,'numlevels',8,'offset',[-1,0]);

   [out3] = GLCM_Features1(glcm4);
   D=[out3.autoc out3.contr out3.corrm out3.corrp out3.cprom out3.cshad out3.dissi out3.energ out3.entro out3.homom out3.homop out3.maxpr out3.sosvh out3.savgh out3.svarh out3.senth out3.dvarh out3.denth out3.inf1h out3.inf2h out3.indnc out3.idmnc];
    E=[ A ,B,C,D];
    F=[];

   F=[F;E];
   imshow(i)
 end

[KSSV]

What you are supposed to do? What is F? What is A,..D? What are images?

Answer 1

[Walter Roberson]

You have

    F=[];

inside the loop, so you are throwing away all of the F contents except for the last image.