diff --git a/src/extension/internal/bitmap/contrast.cpp b/src/extension/internal/bitmap/contrast.cpp
--- /dev/null
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2007 Authors:
+ * Christopher Brown <audiere@gmail.com>
+ * Ted Gould <ted@gould.cx>
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include "extension/effect.h"
+#include "extension/system.h"
+
+#include "contrast.h"
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+namespace Bitmap {
+
+void
+Contrast::applyEffect(Magick::Image *image) {
+ printf("(o0x) Sharpening at: %i\n", _sharpen);
+ image->contrast(_sharpen);
+}
+
+void
+Contrast::refreshParameters(Inkscape::Extension::Effect *module) {
+ _sharpen = module->get_param_bool("sharpen");
+}
+
+#include "../clear-n_.h"
+
+void
+Contrast::init(void)
+{
+ Inkscape::Extension::build_from_mem(
+ "<inkscape-extension>\n"
+ "<name>" N_("Contrast") "</name>\n"
+ "<id>org.inkscape.effect.bitmap.contrast</id>\n"
+ "<param name=\"sharpen\" gui-text=\"" N_("Sharpen") "\" type=\"boolean\" >1</param>\n"
+ "<effect>\n"
+ "<object-type>all</object-type>\n"
+ "<effects-menu>\n"
+ "<submenu name=\"" N_("Raster") "\" />\n"
+ "</effects-menu>\n"
+ "<menu-tip>" N_("Apply Contrast Effect") "</menu-tip>\n"
+ "</effect>\n"
+ "</inkscape-extension>\n", new Contrast());
+}
+
+}; /* namespace Bitmap */
+}; /* namespace Internal */
+}; /* namespace Extension */
+}; /* namespace Inkscape */