code in .aspx page:
<body>
<form id="form1" runat="server">
<div>
Normal
<img src="images/DSC00293.JPG" alt="ww" width="250" height="350" />
invert
<img src="images/DSC00293.JPG" alt="bb" style="fiter:invert" width="250" height="350" />
<br />
Gray scale
<img src="images/DSC00293.JPG" alt="wq" style="filter:gray" width="250" height="350" />
xray
<img src="images/DSC00293.JPG" alt="ll" style="filter:xray" width="250" height="350" />
</div>
</form>
</body>
by using this code we can filter the images