public void ComputeWords()
        {
            Stopwatch s = new Stopwatch();

            s.Start();

            var imageFilter = new ImageFilter();

            char[] chars = imageFilter.RetrieveCharacters();
            Letter[,] letterGrid = GridHelper.ConstructGrid(chars);

            var         wordGetter = new WordGetter();
            List <Word> words      = wordGetter.GetWords(letterGrid);

            MouseOutput.SelectWordsInGridByCursor(s, words);
        }