diff --git a/code/src_binarize_image.m b/code/src_binarize_image.m
new file mode 100644
index 0000000000000000000000000000000000000000..c240366c5feeb63a11a97d8edfed4e2a60494f72
--- /dev/null
+++ b/code/src_binarize_image.m
@@ -0,0 +1,13 @@
+function src_binarize_image()
+%This function illustrates separating foreground from background using a 
+%fixed threshold value  
+
+threshold = 50; %example hreshold value
+%Read input image
+in_image = imread(['image_data' filesep 'xy_8bit__two_cells.tif']); 
+figure; imagesc(in_image); %display input image
+%Binarized input image with the threshold value;
+bin_image = uint8(in_image>= threshold);
+figure; imagesc(bin_image) % display binary image
+end
+
diff --git a/modules/image-binariztion.md b/modules/image-binariztion.md
index 883d449577da686fea2958af4746734a1d7bbbbb..aed7d430133a17107d74a9572798c97f55905ef2 100644
--- a/modules/image-binariztion.md
+++ b/modules/image-binariztion.md
@@ -12,16 +12,3 @@
 	binaryimage -> 1 [label="  foreground"];   
   }
 '/>
-
-<img src='https://g.gravizo.com/svg?
- digraph G {
-    shift [fontcolor=white,color=white];
-    ![Figure 1-1](images/xy_8bit__two_cells.tif "Figure 1-1") -> threshold;
-    threshold -> background [label="  <threshold"];
-    threshold -> foreground [label="  >=threshold"];
-    background -> binaryimage;
-	foreground -> binaryimage;
-	binaryimage -> 0 [label="  background"];
-	binaryimage -> 1 [label="  foreground"];   
-  }
-'/>