Merge branch 'binarization_update' into 'master'

Binarization update

See merge request !32

_includes/binarization/activities/binarization_matlab.md

 ```matlab
-function src_binarize_image()
-%This function illustrates separating foreground from background using a
-%fixed threshold value
 
-threshold = 50; %example hreshold value
+%These matlab scripts illustrate separating the foreground from the
+%background using a threshold value provided by the user
+
+%Prompt user for a threshold value
+thres_val = input('Enter a threshold 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
+%Binarize input image with the threshold valuein_image
+bin_image = uint8(in_image>= thres_val);
+figure; imagesc(bin_image) % Display binary image
+
 ```