Images are rotated counter clockwise without any reason, (2024)

My guess is that you will find the file tranpose/rotation flag is set for some of those images. But IMREAD imports the raw image data, which is unaffected by that flag.

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% Read_Tiff_Header

% Reads in the header information from an .Tiff format Mayo Clinic data file

% and returns the information in a structure stHeader.

%

% Input:

%fullFileName - string, Full filename (including folder) of the Tiff file.

% Output:

%stHeader - Structure with these members, and example values shown below:

% FileModDate: '22-Oct-2007 15:57:24'

% FileSize: 17060

% Format: 'tif'

% FormatVersion: []

% Width: 1024

% Height: 841

% BitDepth: 8

% ColorType: 'grayscale'

% FormatSignature: [73 73 42 0]

% ByteOrder: 'little-endian'

% NewSubFileType: 0

% BitsPerSample: 8

% Compression: 'PackBits'

% PhotometricInterpretation: 'BlackIsZero'

% StripOffsets: [106x1 double]

% SamplesPerPixel: 1

% RowsPerStrip: 8

% StripByteCounts: [106x1 double]

% XResolution: 72

% YResolution: 72

% ResolutionUnit: 'Inch'

% Colormap: []

% PlanarConfiguration: 'Chunky'

% TileWidth: []

% TileLength: []

% TileOffsets: []

% TileByteCounts: []

% Orientation: 1

% FillOrder: 1

% GrayResponseUnit: 0.0100

% MaxSampleValue: 255

% MinSampleValue: 0

% Thresholding: 1

%

% stHeader includes everything in the Tiff header as returned by MATLAB via the imfinfo() function,

% shown above, and includes a few extra members (BytesPerVoxel and Depth).

%BytesPerVoxel - integer, typically 8 or 16

%Depth - integer, Z Dimension of the image

%

% Written by Mark Hayworth on 10/24/2007.

%------------------------------------------------------------------------------

function stHeader = Read_Tiff_Header(fullFileName, varargin)

% Check range of variables.

%disp([num2str(nargin) ' arguments passed in, because nargin = ' num2str(nargin) '.']);

% Need to have either 1 or 2 arguments.

if (nargin < 1 || nargin > 2)

% Not 1 or 2 args.

error('Usage : stHeader = ReadTiffHeader(fullFileName, intDisplayHeaderInCommandWindow)');

else

% They passed in 1 or two args.

if (nargin == 1)

% If they didn't supply the intDisplayInCommandWindow argument, set it to zero.

intDisplayInCommandWindow = 0;

else

% Take what they passed in.

intDisplayInCommandWindow = varargin{1};

end

end

if (ischar(fullFileName) < 1)

error('Requires a string filename as an argument.');

end

% Use built-in MATLAB function to read the TIFF header.

stHeader = imfinfo(fullFileName);

%stHeader.BytesPerVoxel = stHeader.BitsPerSample / 8;

% stHeader.Depth = 1;

stHeader.x_size = stHeader.Width;

stHeader.y_size = stHeader.Height;

stHeader.z_size = 1;

% Display the values in the command window.

if (intDisplayInCommandWindow > 0)

message = sprintf('\nFull File Name = %s', fullFileName);

disp(message);

stHeader

end