diff --git a/reference/image/functions/image2wbmp.xml b/reference/image/functions/image2wbmp.xml
index 5f6adf7fae..60457eab87 100644
--- a/reference/image/functions/image2wbmp.xml
+++ b/reference/image/functions/image2wbmp.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.12 $ -->
+<!-- $Revision: 1.13 $ -->
 <refentry xml:id="function.image2wbmp" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>image2wbmp</refname>
@@ -57,13 +57,12 @@
     <programlisting role="php">
 <![CDATA[
 <?php
-
 $file = 'php.png';
 $image = imagecreatefrompng($file);
 
 header('Content-type: ' . image_type_to_mime_type(IMAGETYPE_WBMP));
 image2wbmp($image); // output the stream directly
-
+imagedestroy($image);
 ?>
 ]]>
     </programlisting>
diff --git a/reference/image/functions/jpeg2wbmp.xml b/reference/image/functions/jpeg2wbmp.xml
index f347c21fe6..501763015c 100644
--- a/reference/image/functions/jpeg2wbmp.xml
+++ b/reference/image/functions/jpeg2wbmp.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.8 $ -->
+<!-- $Revision: 1.9 $ -->
 <refentry xml:id="function.jpeg2wbmp" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>jpeg2wbmp</refname>
@@ -59,7 +59,7 @@
      <term><parameter>threshold</parameter></term>
      <listitem>
       <para>
-       Threshold value, between 0 and 255 (inclusive).
+       Threshold value, between 0 and 8 (inclusive).
       </para>
      </listitem>
     </varlistentry>
diff --git a/reference/image/functions/png2wbmp.xml b/reference/image/functions/png2wbmp.xml
index d6b4edfe30..a970823c81 100644
--- a/reference/image/functions/png2wbmp.xml
+++ b/reference/image/functions/png2wbmp.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.8 $ -->
+<!-- $Revision: 1.9 $ -->
 <refentry xml:id="function.png2wbmp" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>png2wbmp</refname>
@@ -59,7 +59,7 @@
      <term><parameter>threshold</parameter></term>
      <listitem>
       <para>
-       Threshold value, between 0 and 255 (inclusive).
+       Threshold value, between 0 and 8 (inclusive).
       </para>
      </listitem>
     </varlistentry>