The Hierarchical Data Format (hdf) I/O {#tutorial_table_of_content_hdf} ===================================== Here you will know how to read and write a HDF5 file using OpenCV. Specifically, it shows you how to read/write groups, datasets and attributes. @note The HDF5 library has to be installed in your system to use this module. - @subpage tutorial_hdf_create_groups *Compatibility:* \> OpenCV 3.0 *Author:* Fangjun Kuang You will learn how to create groups and subgroups. - @subpage tutorial_hdf_create_read_write_datasets *Compatibility:* \> OpenCV 3.0 *Author:* Fangjun Kuang You will learn how to create, read and write datasets. - @subpage tutorial_hdf_read_write_attributes *Compatibility:* \> OpenCV 3.4 *Author:* Fangjun Kuang You will learn how to read and write attributes.