GZip-supported-Tools-for-NIfTI-and-ANALYZE-image

• A modified MATLAB-based toolbox directly load/save *.nii.gz file without explicit compression/decompression.

• Raw version from Jimmy Shen

Supported Platforms

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Usage (same as raw ones)

• add both folders to MATLAB's search path

• load_nii/save_nii → load_nii_mod/save_nii_mod

• load_untouch_nii/save_untouch_nii → load_untouch_nii_mod/save_untouch_nii_mod

Performance Test

• Code Snippet

tic;
test_img1 = load_nii('test_file.nii');
time1 = toc;
test_img2 = load_nii('test_file.nii.gz');
time2 = toc;
test_img3 = load_nii_mod('test_file.nii.gz');
time3 = toc;

assert(isequal(test_img1.img, test_img2.img))
assert(isequal(test_img1.img, test_img3.img))

fprintf('time of load_nii for *.nii file %.2fs\n', time1);
fprintf('time of load_nii for *.nii.gz file %.2fs\n', time2 - time1);
fprintf('time of load_nii_mod for *.nii.gz file %.2fs\n', time3 - time2);

• Output

time of load_nii for *.nii file 0.35s
time of load_nii for *.nii.gz file 6.19s
time of load_nii_mod for *.nii.gz file 1.56s