Added more detail to the Dataset Modifications section in README

README.md

@@ -63,7 +63,9 @@ made by LIQE.
 5. For the LIVE dataset, LIQE originally gave the images under the directory
    `fastfading` the `white noise` distortion type, even though their code
    already supports the `fastfading` distortion type. In our dataset, their
-   distortion types have been changed to `fastfading`.
+   distortion types have been changed to `fastfading`. Note that due to the
+   pre-mapping, as will be mentioned below, the `fastfading` distortion type
+   will actually then be mapped back to `jpeg2000 compression`.
 
 6. The BID (Blurred Image Database) dataset from "No-reference blur assessment
    of digital pictures based on multi-feature classifiers" claims to have 585
@@ -74,6 +76,18 @@ made by LIQE.
    and `DatabaseImage0439.JPG`) have been manually removed since they don't have
    their associated labels.
 
+7. LIQE actually provides 33 distortion types in their labels, instead of the 11
+   as claimed in their paper, but they still map them back to the 11 types at
+   runtime. The 11 distortion types are also named differently than what is
+   written in their paper. Specifically, `color-related` is renamed to `color`,
+   `JPEG compression` to `jpeg compression`, `JPEG2000 compression` to `jpeg2000
+   compression`, `over-exposure` to `overexposure`, `under-exposure` to
+   `underexposure`, `spatially-localized` to `spatial`, and `others` to `other`.
+   The scene types `indoor scene` has also been renamed to `indoor`, `night
+   scene` to `night`, and `still-life` to `still_life`. The distortion types
+   have been pre-mapped back to the 11 types, and the naming for the scene and
+   distortion types follows the source code of LIQE instead of the paper.
+
 ## Notes
 
 1. Even though the README file in the LIVE dataset claims that: