mpib_memoreye/gaze_heatmaps/getitemimgallrot.m

function Jcenter = getitemimgallrot(i,sizegaz,resize);
for k =1:16;
    
    rotlist = linspace(11.25,348.75,16)
% rotlist=[11.2500000000000
% 56.2500000000000
% 101.250000000000
% 146.250000000000
% 191.250000000000
% 236.250000000000
% 281.250000000000
% 326.2500000000000];

% i=1
% sizegaz=[400 400]
% resize=2

% Get the image files for the experiment:

imageFolder = 'stimuli/';
imgList = dir(fullfile(imageFolder,['*.' 'jpg']));
imgList = {imgList(:).name};

bth=254;% treshold to subtitute for background
sc_o=(10000/2560)*1.4;

%Object 1

file_object_1 = imgList{i};
img_object_1 = imread(fullfile(imageFolder ,file_object_1));
img_object_1((img_object_1>=bth))=255;%128; %REMOVING BACKGROUND FOR EACH IMAGE
%     objectDisplay_1 = Screen('MakeTexture', window1, img_object_1);

% Calculate image position (center of the screen) OBJECT 1
imageSize_o1 = size(img_object_1)/sc_o;
%     pos_o1 = [(W-imageSize_o1(2))/2 (H-imageSize_o1(1))/2 (W+imageSize_o1(2))/2 (H+imageSize_o1(1))/2];

J = imresize(img_object_1,imageSize_o1(1:2));

if resize==1 %if the plot is smaller than the images
    
n=round(sizegaz/2);
m=round(size(J)/2);
point1=m(1)-n(1);
point2=m(1)+n(1);
Jcenter=J(point1:point2,point1:point2,:);

elseif resize==2 %if the plot is bigger than the images
    
m=round(sizegaz/2);
n=round(size(J)/2);
point1=m(1)-n(1);
point2=m(1)+n(1);    
    
canvas=nan([sizegaz,3]);  
canvas(:,:,:)=256; 
canvas(point1:point2-1,point1:point2-1,:)=J(:,:,:);
canvas=uint8(canvas);

Jcenter=canvas;
    
else
    Jcenter=J;
end

JcenterRot=imrotate(Jcenter,rotlist(k),'nearest','crop');       

im=imagesc(JcenterRot);
% im.AlphaData = 0.35;%min(JcenterRot,[],2);

alphamap=JcenterRot(:,:,1)~=255;
alphamap=alphamap.*(1/(k));
im.AlphaData =alphamap;
hold on;
end
end