Update docs

Author: nghia-vo

docs/source/index.rst

@@ -39,4 +39,5 @@ Contents
     usage
     notes
     api
+    updates
     credit

docs/source/tutorials/methods.rst

@@ -632,4 +632,4 @@ distortion can be determined independently by using grid lines of reference poin
 calibration image. This makes Discorpy a practical tool for a wide range of imaging applications. Details
 on how to use Discorpy to process real data are provided in :ref:`section 3 <usage>`.
 New developments :cite:`Vo:2025` introduced in Discorpy 1.7 for calibrating strong radial distortion (i.e., fisheye distortion)
-in the presence of perspective distortion using only a single calibration image are presented in section 4.
+in the presence of perspective distortion using only a single calibration image are presented in :ref:`section 4 <fisheye>`.

docs/source/updates.rst

@@ -0,0 +1,46 @@
+Update notes
+============
+
+-   11/04/2025:
+
+    +   Added methods for calibrating strong distortion (fisheye images):
+
+        *   Grouping points on strongly curved lines.
+        *   Calculating the center of distortion using vanishing point approaches.
+        *   Correcting perspective distortion.
+
+    +   Updated loader-saver module to support Windows file paths.
+    +   Added functions for saving and loading .json and .pickle files.
+    +   Improved methods for detecting points in line-pattern and chessboard images.
+    +   Added masking methods for removing unwanted points from calibration images.
+    +   Release version 1.7.
+
+-   20/11/2023:
+
+    +   Add module of utility methods:
+
+        *   Generate grid-pattern images.
+        *   Find corresponding points between the distorted and undistorted space.
+        *   Unwarp a color image with an option to keep the original field of view.
+        *   Unwarping an image or video using the 'remap' function in Opencv for fast performance.
+
+    +   Release version 1.6.
+
+-   02/03/2023:
+
+    +   Improve methods for perspective distortion correction.
+    +   Add missing options to enable/disable optimization.
+    +   Improve/add tests.
+    +   Realise version 1.5
+
+-   21/11/2021:
+
+    +   Add methods for correcting perspective distortion.
+    +   Add pre-processing methods for a line-pattern image and a chessboard image.
+    +   Add Readthedocs documentation page.
+    +   Realise version 1.4.
+
+- 01/06/2021:
+
+    +   Change name to Discorpy.
+    +   Release version 1.3.