update README.md

README.md

@@ -187,9 +187,9 @@ Standard sagittal T1 and T2 image resolution ranges from 3.3 x 0.33 x 0.33 mm to
 Sagittal T2 SPACE sequence images had a near isotropic spatial resolution with a voxel size of 0.90 x 0.47 x 0.47 mm.
 [Source](https://spider.grand-challenge.org/data/)
 
-Note that all images are rescaled to have a resolution in the range `[0, 255]` (i.e., unsigned 8-bit integers)
-for compatibility with HuggingFace `datasets` library. If you want to use the original resolution, you can
-load the original images from the local cache paths indicated in the `image_path` and `mask_path` features.
+Note that all images are rescaled to have pixel intensities in the range `[0, 255]` (i.e., unsigned 8-bit integers)
+for compatibility with the HuggingFace `datasets` library. If you want to use the original resolution, you can
+load the original images from the local cache indicated in each example's `image_path` and `mask_path` features.
 See the data loading [tutorial](tutorials/load_data.ipynb) for more information.
 
 ## Additional Information