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add support for half-precision data #20

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add support for half-precision data #20

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4 changes: 4 additions & 0 deletions npy-matlab/readNPY.m
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Original file line number Diff line number Diff line change
Expand Up @@ -15,12 +15,16 @@
fid = fopen(filename, 'r', 'b');
end

ishalf = strcmp(dataType, 'half');
if ishalf; dataType = 'uint16'; end

try

[~] = fread(fid, totalHeaderLength, 'uint8');

% read the data
data = fread(fid, prod(shape), [dataType '=>' dataType]);
if ishalf; data = half.typecast(data); end
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@kalvdans kalvdans Mar 10, 2025

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Nit: move this code outside of the try-catch body.


if length(shape)>1 && ~fortranOrder
data = reshape(data, shape(end:-1:1));
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4 changes: 2 additions & 2 deletions npy-matlab/readNPYheader.m
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Expand Up @@ -22,8 +22,8 @@

try

dtypesMatlab = {'uint8','uint16','uint32','uint64','int8','int16','int32','int64','single','double', 'logical'};
dtypesNPY = {'u1', 'u2', 'u4', 'u8', 'i1', 'i2', 'i4', 'i8', 'f4', 'f8', 'b1'};
dtypesMatlab = {'uint8','uint16','uint32','uint64','int8','int16','int32','int64','half','single','double','logical'};
dtypesNPY = {'u1', 'u2', 'u4', 'u8', 'i1', 'i2', 'i4', 'i8', 'f2', 'f4', 'f8', 'b1'};


magicString = fread(fid, [1 6], 'uint8=>uint8');
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