[gimp-help] Update Gauss filter

[Julien Hardlin <jhardlin src gnome org>]

commit 191d7f9b30a08b1456db8356c53dd8dce3524557
Author: Julien Hardelin <jhardlin orange fr>
Date:   Thu Sep 13 07:59:09 2018 +0200

    Update Gauss filter

 images/C/filters/blur/clip-0.png    | Bin 0 -> 12717 bytes
 images/C/filters/blur/clip-1.png    | Bin 0 -> 10657 bytes
 images/C/filters/blur/clip-orig.png | Bin 0 -> 3814 bytes
 src/filters/blur/gauss.xml          |  42 ++++++++++++++++++++++++++++++++++--
 4 files changed, 40 insertions(+), 2 deletions(-)
---
diff --git a/images/C/filters/blur/clip-0.png b/images/C/filters/blur/clip-0.png
new file mode 100644
index 000000000..312356190
Binary files /dev/null and b/images/C/filters/blur/clip-0.png differ
diff --git a/images/C/filters/blur/clip-1.png b/images/C/filters/blur/clip-1.png
new file mode 100644
index 000000000..0687202a2
Binary files /dev/null and b/images/C/filters/blur/clip-1.png differ
diff --git a/images/C/filters/blur/clip-orig.png b/images/C/filters/blur/clip-orig.png
new file mode 100644
index 000000000..1919368c0
Binary files /dev/null and b/images/C/filters/blur/clip-orig.png differ
diff --git a/src/filters/blur/gauss.xml b/src/filters/blur/gauss.xml
index 4514c52b8..00d2bd8bf 100644
--- a/src/filters/blur/gauss.xml
+++ b/src/filters/blur/gauss.xml
@@ -132,11 +132,49 @@
         <term><guilabel>Clip to the input extent</guilabel></term>
         <listitem>
           <para>
-            TODO. Not working. Should the output extent be clipped to the 
-            input extent.
+            Should the output extent be clipped to the input extent: this 
+            option removes unwanted pixels created on borders by blurring.
           </para>
+          <figure>
+            <title>Example</title>
+            <mediaobject>
+              <imageobject>
+              <imagedata format="PNG"
+                  fileref="images/filters/blur/clip-orig.png"/>
+              </imageobject>
+              <caption>
+                <para>
+                  Right-up corner of the image, zoom x800
+                </para>
+              </caption>
+            </mediaobject>
+            <mediaobject>
+              <imageobject>
+              <imagedata format="PNG"
+                  fileref="images/filters/blur/clip-0.png"/>
+              </imageobject>
+              <caption>
+                <para>
+                  <quote>Clip to the input extent</quote> unchecked
+                </para>
+              </caption>
+            </mediaobject>
+            <mediaobject>
+              <imageobject>
+              <imagedata format="PNG"
+                  fileref="images/filters/blur/clip-1.png"/>
+              </imageobject>
+              <caption>
+                <para>
+                  <quote>Clip to the input extent</quote> checked
+                </para>
+              </caption>
+            </mediaobject>
+          </figure>
         </listitem>
       </varlistentry>
     </variablelist>
   </sect3>
+  <para>
+    The Gaussian Blur filter doesn't preserve edges in the image. See 
 </sect2>