(--20200922(Disabled, please see the latest version in the following):
	For ease of use, we have updated the dataset. The old link has been disabled. The following link is the latest version.
 
 --20210303:
	We received some feedback, saying that there are too many files and the dataset is difficult to download. Thus, we reorganize the dataset into multiple .zip files for release. The download and usage instructions of each file or folder are as follows:
	(1) For the following files or folders, please download them directly: 
		data_info_IQABD; 
		name_mapping_of_BDDL_and_COCO_v2.txt;
		readme.txt; 
		restore_dis_img_from_diff_mat_by_image_v2.m; 
		select_and_copy_images_v2.m
		
	(2) For the rest two folders: 'diff_mat' and 'diff_mat_in_zip'.
		You only need download one of them. (NOTE! NOTE!! NOTE!!!)  Because they contain the same contents. The files in 'diff_mat' are stored in multiple .zip files in 'diff_mat_in_zip' for easily download.
		If you download the 'diff_mat_in_zip', please unzip the subfiles and rename the parent folder (i.e., diff_mat_in_zip) to 'diff_mat'.
		
	(3) For more details about the usage of the dataset, please read the readme.txt file., or contact `jupoma@stu.xidian.edu.cn`.
)

Please download the dataset from:
link: https://pan.baidu.com/s/1FkOh1_neEM4n-J256KAIjw 
password: mu0h 


Please contact `jupoma@stu.xidian.edu.cn` if any issues with the dataset.


The total file size to be downloaded is about 625G. So it may need a long time to download the complete file. 

A Super VIP of Baidu Netdisk may speed up downloads. Take me as an example, the download speed of Super VIP is about 1-2 M/s. Thus, 4-8 days are expected to download the full file.

Besides, we are sorry for that, taking into account the Copyright issues, we released our dataset in the form of .mat (Matlab). Extra operations are required to get the final images. More details can be found in the downloaded readme.txt file.

If you have any questions/suggestions/requirements, please contact us as soon as possible.