update downloading process

Author: jinwonkim93

docs/en/dataset_prepare.md

@@ -400,22 +400,37 @@ The dataset is generated by two techniques, Naturalistic occlusion generation, R
 
 ## Dataset Preparation
 
-Please download the masks from this [drive](https://drive.google.com/drive/folders/15nZETWlGMdcKY6aHbchRsWkUI42KTNs5?usp=sharing) and the images from [CelebAMask-HQ](https://github.com/switchablenorms/CelebAMask-HQ), [11k Hands](https://sites.google.com/view/11khands) and [DTD](https://www.robots.ox.ac.uk/~vgg/data/dtd/).
+step 1
 
-The extracted and upsampled COCO objects images and masks can be found in this [drive](https://drive.google.com/drive/folders/15nZETWlGMdcKY6aHbchRsWkUI42KTNs5?usp=sharing).
-
-Please extract CelebAMask-HQ and 11k Hands images based on the splits found in [drive](https://drive.google.com/drive/folders/15nZETWlGMdcKY6aHbchRsWkUI42KTNs5?usp=sharing).
+Create a folder for data generation materials on mmsegmentation folder.
 
+```shell
 mkdir data_materials
+```
+
+step 2
+
+Please download the masks (11k-hands_mask.7z,CelebAMask-HQ-masks_corrected.7z) from this [drive](https://drive.google.com/drive/folders/15nZETWlGMdcKY6aHbchRsWkUI42KTNs5?usp=sharing)
+
+Please download the images from [CelebAMask-HQ](https://github.com/switchablenorms/CelebAMask-HQ), [11k Hands.zip](https://sites.google.com/view/11khands) and [dtd-r1.0.1.tar.gz](https://www.robots.ox.ac.uk/~vgg/data/dtd/).
+
+step 3
+
+Download a upsampled COCO objects images and masks (coco_object.7z). files can be found in this [drive](https://drive.google.com/drive/folders/15nZETWlGMdcKY6aHbchRsWkUI42KTNs5?usp=sharing).
+
+Download CelebAMask-HQ and 11k Hands images split txt files. (11k_hands_sample.txt, CelebAMask-HQ-WO-train.txt) found in [drive](https://drive.google.com/drive/folders/15nZETWlGMdcKY6aHbchRsWkUI42KTNs5?usp=sharing).
+
 download file to ./data_materials
 
 ```none
 CelebAMask-HQ.zip
 CelebAMask-HQ-masks_corrected.7z
+CelebAMask-HQ-WO-train.txt
 RealOcc.7z
 RealOcc-Wild.7z
 11k-hands_mask.7z
-11k-hands_image.7z
+11k Hands.zip
+11k_hands_sample.txt
 coco_object.7z
 dtd-r1.0.1.tar.gz
 ```