diff --git a/reference/imagick/imagick/getimageinterpolatemethod.xml b/reference/imagick/imagick/getimageinterpolatemethod.xml
index 37b6ffcd99..23a64e23e4 100644
--- a/reference/imagick/imagick/getimageinterpolatemethod.xml
+++ b/reference/imagick/imagick/getimageinterpolatemethod.xml
@@ -12,9 +12,9 @@
    <type>int</type><methodname>Imagick::getImageInterpolateMethod</methodname>
    <void/>
   </methodsynopsis>
-  &warn.undocumented.func;
   <para>
-   Returns the interpolation method for the specified image.
+   Returns the interpolation method for the specified image. The method is one of 
+   the <constant>Imagick::INTERPOLATE_*</constant> constants.
   </para>
  </refsect1>
 
diff --git a/reference/imagick/imagick/linearstretchimage.xml b/reference/imagick/imagick/linearstretchimage.xml
index b4074c7b58..d77bf06fdc 100644
--- a/reference/imagick/imagick/linearstretchimage.xml
+++ b/reference/imagick/imagick/linearstretchimage.xml
@@ -13,7 +13,7 @@
    <methodparam><type>float</type><parameter>blackPoint</parameter></methodparam>
    <methodparam><type>float</type><parameter>whitePoint</parameter></methodparam>
   </methodsynopsis>
-  &warn.undocumented.func;
+
   <para>
    Stretches with saturation the image intensity.
   </para>
diff --git a/reference/imagick/imagick/setfont.xml b/reference/imagick/imagick/setfont.xml
index 39955a8dc2..56fcd9e59c 100644
--- a/reference/imagick/imagick/setfont.xml
+++ b/reference/imagick/imagick/setfont.xml
@@ -3,7 +3,7 @@
 <refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.imagick-setfont">
  <refnamediv>
   <refname>Imagick::setFont</refname>
-  <refpurpose>Sets the image bias for any method that convolves an image</refpurpose>
+  <refpurpose>Sets font</refpurpose>
  </refnamediv>
 
  <refsect1 role="description">
@@ -12,8 +12,6 @@
    <type>bool</type><methodname>Imagick::setFont</methodname>
    <methodparam><type>string</type><parameter>font</parameter></methodparam>
   </methodsynopsis>
-  &warn.undocumented.func;
-  &warn.experimental.func;
   <para>
    Sets object's font property. This method can be used for example to set font for 
    caption: pseudo-format. This method is available if Imagick is compile against
diff --git a/reference/imagick/imagick/setimageinterpolatemethod.xml b/reference/imagick/imagick/setimageinterpolatemethod.xml
index 913c74c548..d93468a794 100644
--- a/reference/imagick/imagick/setimageinterpolatemethod.xml
+++ b/reference/imagick/imagick/setimageinterpolatemethod.xml
@@ -12,7 +12,6 @@
    <type>bool</type><methodname>Imagick::setImageInterpolateMethod</methodname>
    <methodparam><type>int</type><parameter>method</parameter></methodparam>
   </methodsynopsis>
-  &warn.undocumented.func;
   <para>
    Sets the image interpolate pixel method.
   </para>
@@ -26,6 +25,7 @@
      <term><parameter>method</parameter></term>
      <listitem>
       <para>
+       The method is one of the <constant>Imagick::INTERPOLATE_*</constant> constants
       </para>
      </listitem>
     </varlistentry>