data_loader_test.py 文件源码

def load_ROI_mask(self):

        proxy = nib.load(self.FLAIR_FILE)
        image_array = np.asarray(proxy.dataobj)

        mask = np.ones_like(image_array)
        mask[np.where(image_array < 90)] = 0

        # img = nib.Nifti1Image(mask, proxy.affine)
        # nib.save(img, join(modalities_path,'mask.nii.gz'))

        struct_element_size = (20, 20, 20)
        mask_augmented = np.pad(mask, [(21, 21), (21, 21), (21, 21)], 'constant', constant_values=(0, 0))
        mask_augmented = binary_closing(mask_augmented, structure=np.ones(struct_element_size, dtype=bool)).astype(
            np.int)

        return mask_augmented[21:-21, 21:-21, 21:-21].astype('bool')