Using the new Horizon & Speed parameters in David Griffiths's New lake.class version 4.
This is a new concept and IMHO, is a great way to make the  ripples where you  want them.
No cutting up picture & then using formula to get top part of picture to ripple underneath it.
  Here I used complete picture and picture actual measurements. Original size  applet is, Width ~ 500 pixels x Height ~ 333 pixels.  Ok, I looked at original picture, and said, "Sure be nice if water was rippling were I wont it to." As you can see in the applet , indeed, my wish came true with help from David Griffiths and his new lake.class version 4.  Using some trial and lots of error I found that a horizon parameter of "187" put the ripple starting where I wanted
  it.
Smaller number raises the position of the ripple,  The speed of the ripples is a matter of personal preference,  and I used"15"                                                

Sample speeds can be seen here.



 

Here is the html used for this applet

                   <APPLET CODE="lake" WIDTH="
500" HEIGHT="333" >       
     <PARAM NAME="image" VALUE="dawn.jpg">  
      <PARAM NAME="horizon" VALUE="187">          
  
              
<PARAM NAME="speed" VALUE="15"></APPLET>       

 

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