From 094941915d4e183d28cda5c015cba6a36779b66c Mon Sep 17 00:00:00 2001
From: Dirk Lemstra <dirk@git.imagemagick.org>
Date: Mon, 4 Sep 2017 20:51:32 +0200
Subject: [PATCH] Added charcoalChannel to Magick++.

---
 Magick++/lib/Image.cpp        | 14 ++++++++++++++
 Magick++/lib/Magick++/Image.h |  2 ++
 2 files changed, 16 insertions(+)

diff --git a/Magick++/lib/Image.cpp b/Magick++/lib/Image.cpp
index d34727734..426a02263 100644
--- a/Magick++/lib/Image.cpp
+++ b/Magick++/lib/Image.cpp
@@ -2196,6 +2196,20 @@ void Magick::Image::charcoal(const double radius_,const double sigma_)
   ThrowImageException;
 }
 
+void Magick::Image::charcoalChannel(const ChannelType channel_,
+  const double radius_,const double sigma_)
+{
+  MagickCore::Image
+    *newImage;
+
+  GetPPException;
+  GetAndSetPPChannelMask(channel_);
+  newImage=CharcoalImage(image(),radius_,sigma_,exceptionInfo);
+  RestorePPChannelMask;
+  replaceImage(newImage);
+  ThrowImageException;
+}
+
 void Magick::Image::chop(const Geometry &geometry_)
 {
   MagickCore::Image
diff --git a/Magick++/lib/Magick++/Image.h b/Magick++/lib/Magick++/Image.h
index 2fb8c38f3..3ca971202 100644
--- a/Magick++/lib/Magick++/Image.h
+++ b/Magick++/lib/Magick++/Image.h
@@ -691,6 +691,8 @@ namespace Magick
     // pixels, not counting the center pixel.  The sigma_ parameter
     // specifies the standard deviation of the Laplacian, in pixels.
     void charcoal(const double radius_=0.0,const double sigma_=1.0);
+    void charcoalChannel(const ChannelType channel_,const double radius_=0.0,
+      const double sigma_=1.0);
 
     // Chop image (remove vertical or horizontal subregion of image)
     // FIXME: describe how geometry argument is used to select either
-- 
2.40.0