How can I rotate my images

So I have these imgaes being generated from my drive. But they are not jpg images. So I am having a hard time getting them to rotate. Can anyone give me advice on what to do? Thanks!

clear;clc;close all;

myfolds = {'P:\IRB_STUDY00146119_Xe_Imaging\20230320_Xe-059',...
'P:\IRB_STUDY00146119_Xe_Imaging\20221018_Xe-045',...
'P:\IRB_STUDY00146119_Xe_Imaging\20221025_Xe-046',...
'P:\IRB_STUDY00146119_Xe_Imaging\20221028_Xe-047',...
'P:\IRB_STUDY00146119_Xe_Imaging\20221115_Xe-049',...
'P:\IRB_STUDY00146119_Xe_Imaging\20230109_Xe-054',...
'P:\IRB_STUDY00146119_Xe_Imaging\20230111_Xe-052',...
'P:\IRB_STUDY00146119_Xe_Imaging\20230112_Xe-051',...
'P:\IRB_STUDY00146119_Xe_Imaging\20230118_Xe-048',...
'P:\IRB_STUDY00146119_Xe_Imaging\20230309_Xe-058',...
'P:\IRB_STUDY00146616_COVID_Xe_MRI\20221109_CXe-041',...
'P:\IRB_STUDY00146616_COVID_Xe_MRI\20221201_CXe-038_02',...
'P:\IRB_STUDY00146616_COVID_Xe_MRI\20221031_CXe-020_02',...
};
for ii = 1:length(myfolds)
    try
        load(fullfile(myfolds{ii},'Dynamic_CSI_Workspace.mat'));
        load(fullfile(myfolds{ii},'All_in_One_Analysis','Oscillation_Amps_Multiple_Ways.mat'));
        figure('Name','Select Left then Right lung');
        imagesc(Gas(:,:,1));
        l = roipoly();
        r = roipoly();
        Mask = l+r;
        close;
        RBC_Osc_Proj(end-7:end,:) = [];
        RBC_Osc_Proj(:,end-7:end) = [];
        RBC_Osc_Proj(1:8,:) = [];
        RBC_Osc_Proj(:,1:8) = [];
        RBC2Mem_Osc_Proj(end-7:end,:) = [];
        RBC2Mem_Osc_Proj(:,end-7:end) = [];
        RBC2Mem_Osc_Proj(1:8,:) = [];
        RBC2Mem_Osc_Proj(:,1:8) = [];
        
        tROP = RBC_Osc_Proj;
        tROP(isnan(tROP)) = 0;
        tRMOP = RBC2Mem_Osc_Proj;
        tRMOP(isnan(tRMOP)) = 0;

        tmpRBC_Osc_Proj = imresize(tROP,[8,8]);
        tmpRBC2Mem_Osc_Proj = imresize(tRMOP,[8,8]);
        
        figure('Name',['Image for ii = ' num2str(ii)]);
     
        subplot(2,3,1)
        imagesc(RBCAmp.*Mask);axis square; axis off;clim([0 8]);
        matrixa= [imdivide(RBCAmp.*Mask,1)];
        matrixa(isnan(matrixa))=0;
        
        A1=matrixa(1:4,1:4);
        A2=mean(A1,"all",'omitnan');

        B1=matrixa(5:8,1:4);
        B2=mean(B1,"all");

        C1=matrixa(1:4,5:8);
        C2=mean(C1,"all");

        D1=matrixa(5:8,5:8);
        D2=mean(D1,"all");

        RBC1 = [A2,B2;C2,D2];
        disp('RBCAmp.*Mask Avg in Quads')
        disp(RBC1);
   

        subplot(2,3,2)
        imagesc(RBC_Osc_Proj);axis square;axis off;clim([0 20]);
       

        subplot(2,3,3)
        imagesc(tmpRBC_Osc_Proj);axis square;axis off;clim([0 20]);
        matrixa= [imdivide(tmpRBC_Osc_Proj,1)];
        matrixa(isnan(matrixa))=0;
        
        A3=matrixa(1:4,1:4);
        A4=mean(A3,"all");

        B3=matrixa(5:8,1:4);
        B4=mean(B3,"all");

        C3=matrixa(1:4,5:8);
        C4=mean(C3,"all");

        D3=matrixa(5:8,5:8);
        D4=mean(D3,"all");

        OSC1 = [A4,B4;C4,D4];
        disp('tmpRBC_Osc_Proj Avg in Quads')
        disp(OSC1);


        subplot(2,3,4)
        imagesc(RBC2MemAmp.*Mask);axis square;axis off;clim([0 0.1]);
        matrixa= [imdivide(RBC2MemAmp.*Mask,1)];
        matrixa(isnan(matrixa))=0;
        
        A5=matrixa(1:4,1:4);
        A6=mean(A5,"all");

        B5=matrixa(5:8,1:4);
        B6=mean(B5,"all");

        C5=matrixa(1:4,5:8);
        C6=mean(C5,"all");

        D5=matrixa(5:8,5:8);
        D6=mean(D5,"all");

        RBC2 = [A6,B6;C6,D6];
        disp('RBC2MemAmp.*Mask Avg in Quads')
        disp(RBC2);
   

        subplot(2,3,5)
        imagesc(RBC2Mem_Osc_Proj);axis square;axis off;clim([0 0.1])
       

        subplot(2,3,6)
        imagesc(tmpRBC2Mem_Osc_Proj);axis square;axis off;clim([0 0.1])
        matrixa= [imdivide(tmpRBC2Mem_Osc_Proj,1)];
        matrixa(isnan(matrixa))=0;
       
        A7=matrixa(1:4,1:4);
        A8=mean(A7,"all");

        B7=matrixa(5:8,1:4);
        B8=mean(B7,"all");

        C7=matrixa(1:4,5:8);
        C8=mean(C7,"all");

        D7=matrixa(5:8,5:8);
        D8=mean(D7,"all");

        OSC2 = [A8,B8;C8,D8];
        disp('tmpRBC2Mem_Osc_Proj Avg in Quads')
        disp(OSC2);


        y1=dist(RBC1,OSC1);
        y2=dist(RBC2,OSC2);
        disp('diff in top')
        disp(y1);
        disp('diff in bottom')
        disp(y2);
    catch
        disp('Need to analyze both ims!')
    end
end

Answer 1

[DGM]

The fact that they aren't JPG isn't relevant. If you can read the image as an array of typical numeric class ('double','single','uint8','uint16','int16'), then you should be able to operate on it. I don't see anything that is preventing you from using imrotate() or rot90() to do whatever you need to do, but I also don't see where you're trying to do any rotation.

[William]

Yeah sorry I took out the part where i was trying to rotate it because it just wasn't even close to working. I'll try defining it with imread. Thank you for the response

[William]

Do you know what I should be reading? The problem is that none of these images have a name and they are just being called from the folders

[Walter Roberson]

imrotate() does not accept file names. imrotate() operates entirely on data arrays. It does not matter to imrotate whether the data is from imread or from multibandread or from readmatrix or from load() or from rand()

[William]

But if I do not need to rotate all of them by the same angle amount then how do i specify which one to rotate by what if I do not use a name? Sorry I'm still learning a lot of MATLAB

[Walter Roberson]

@William

How would having a file name help you to know how much to rotate the image by?

And is it possible that knowing the name of a variable inside a .mat file would allow you to deduce the required information?

[DGM]

I'm not sure where this is going, but:

So far, I'm assuming that the rotations are all "in-plane" (i.e. as you would rotate a photo in photoshop). If you have a volumetric image and the axis of rotation is not parallel to the page axis, then you might use imrotate3(). If you're trying to reconstruct an image from projections, that's a different story.