Read img medical image without header in matlab

Question

I have a radiograph .img file without the header file. However, the researchers who have published the file have given this information about it

High resolut         


        

Answer 1

The lung x-rays of the JSRT database (www.jsrt.or.jp/jsrt-db/eng.php), have that format. I tested this code with them and it works:

fid = fopen('image.img','r','b');
oneSlice = fread(fid, [2048 2048], '*uint16','b');
img = mat2gray(oneSlice, [0,4096]);
fclose(fid);

Answer 2

%%% Read image
    fid = fopen('image.img','r','b');
    oneSlice = fread(fid, [2048 2048], '*uint16','b');
    img = mat2gray(oneSlice, [0,4096]);
    fclose(fid);

%%%rotate image

    imgR = imrotate(img,270);

%%%horizontal flip image

    imgRF = flipdim(TestImgR ,2);