diff --git a/src/ImageAutodoc.php b/src/ImageAutodoc.php
index 942aa15..a0b2b4d 100644
--- a/src/ImageAutodoc.php
+++ b/src/ImageAutodoc.php
@@ -427,12 +427,14 @@
  *     @throws Exception
  * @method static Image matload(string $filename, array $options = []) Load mat from file.
  *     @throws Exception
- * @method Image matrixinvert(array $options = []) Invert an matrix.
+ * @method Image matrixinvert(array $options = []) Invert a matrix.
  *     @throws Exception
  * @method static Image matrixload(string $filename, array $options = []) Load matrix.
  *     @throws Exception
  * @method static Image matrixload_source(Source $source, array $options = []) Load matrix.
  *     @throws Exception
+ * @method Image matrixmultiply(Image $right, array $options = []) Multiply two matrices.
+ *     @throws Exception
  * @method void matrixprint(array $options = []) Print matrix.
  *     @throws Exception
  * @method void matrixsave(string $filename, array $options = []) Save image to matrix.
@@ -567,6 +569,8 @@
  *     @throws Exception
  * @method Image remainder_const(float[]|float $c, array $options = []) Remainder after integer division of an image and a constant.
  *     @throws Exception
+ * @method Image remosaic(string $old_str, string $new_str, array $options = []) Rebuild an mosaiced image.
+ *     @throws Exception
  * @method Image replicate(integer $across, integer $down, array $options = []) Replicate an image.
  *     @throws Exception
  * @method Image resize(float $scale, array $options = []) Resize an image.
@@ -589,7 +593,7 @@
  *     @throws Exception
  * @method Image scRGB2XYZ(array $options = []) Transform scRGB to XYZ.
  *     @throws Exception
- * @method Image scRGB2sRGB(array $options = []) Convert an scRGB image to sRGB.
+ * @method Image scRGB2sRGB(array $options = []) Convert scRGB to sRGB.
  *     @throws Exception
  * @method Image scale(array $options = []) Scale an image to uchar.
  *     @throws Exception
diff --git a/src/Intent.php b/src/Intent.php
index fab3249..658264e 100644
--- a/src/Intent.php
+++ b/src/Intent.php
@@ -53,4 +53,5 @@ abstract class Intent
     const RELATIVE = 'relative';
     const SATURATION = 'saturation';
     const ABSOLUTE = 'absolute';
+    const AUTO = 'auto';
 }
diff --git a/src/Kernel.php b/src/Kernel.php
index d5b76dc..27b335c 100644
--- a/src/Kernel.php
+++ b/src/Kernel.php
@@ -55,4 +55,6 @@ abstract class Kernel
     const MITCHELL = 'mitchell';
     const LANCZOS2 = 'lanczos2';
     const LANCZOS3 = 'lanczos3';
+    const MKS2013 = 'mks2013';
+    const MKS2021 = 'mks2021';
 }