Converting BMP to JPG loses quality

[WALDO]

I'm a little new at ASP.Net, so bear with me. I have a page where users upload bitmaps to my site. I then convert them to JPGs of the same size and destroy the bitmaps. In doing so, they lose color quality a little and become a little blurry. Is there any way around this? Here is my code:

<% ' import all relevant namespaces %>  
<%@ Page Debug="true" %>
<%@ import namespace="System" %>    
<%@ import namespace="System.Drawing" %>    
<%@ import namespace="System.Drawing.Imaging" %>    
<%@ import namespace="System.IO" %>     
<script runat="server" >
        
Sub ConvertFile()   
            
    ' create New image and bitmap objects. Load the image file and put into a resized bitmap.   
    Dim g As System.Drawing.Image = System.Drawing.Image.FromFile(Request.Form("src"))  
    Dim imgOutput 
    
    If Request.Form("Thumbnail") > "" Then
        imgOutput = New Bitmap(g, 130, 90)
    Else
        imgOutput = New Bitmap(g)
    End If
    
    
    ' Set the contenttype   
    Response.ContentType = "image/jpeg"     
 
    ' send the converted image to the viewer    
    imgOutput.save(Response.OutputStream, system.drawing.imaging.imageformat.JPEG) ' output to the user     
            
    ' tidy up   
    g.dispose()
    imgOutput.dispose()     
            
End Sub     
        
</script>   
<%  
        
' make sure Nothing has gone to the client  
Response.Clear
Call ConvertFile()
Response.End
        
%>