public void ProcessRequest(HttpContext context)
{
string filename = context.Request.QueryString["file"];
string wmname = context.Request.QueryString["wm"];
string mode = context.Request.QueryString["mode"];
string original = context.Request.QueryString["original"];
context.Response.ContentType = "image/bmp";
if (original != null)
{
try
{
((AltariaImage)context.Session[original]).originalbmp.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Png);
}
catch (Exception)
{
((Bitmap)context.Session[original]).Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
}
else
//start embed of watermark
//--------------------------------------START------------------------------------------------------//
//step 1: Two images are taken as input
//AltariaImage wm = new AltariaImage(new Bitmap(fu.PostedFile.InputStream), fu.PostedFile.FileName);
//AltariaImage wm = new AltariaImage(fu.PostedFile.InputStream, fu.PostedFile.FileName);
//AltariaImage ci = (AltariaImage)Session[((Label)(ri.FindControl("ci"))).Text];
if (wmname != null && mode != null)
{
AltariaImage wm = (AltariaImage)context.Session[wmname];
AltariaImage ci = (AltariaImage)context.Session[filename];
if (!ci.IsTransformed())
{
ci.HaarTransform();
}
if (!wm.IsTransformed())
{
wm.HaarTransform();
}
//save the transform to session to avoid transformation again
context.Session[filename] = ci;
context.Session[wmname] = wm;
if (mode == "aball")
{
try
{
string alpha = context.Request.QueryString["alpha"];
double a = Convert.ToDouble(alpha) / 10.0;
ci.AlphaBlend(wm, a);
}
catch
{
ci.AlphaBlend(wm);
}
ci.HaarRestore();
ci.ConcatPlanes();
ci.concatbmp.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
else if (mode == "aball_plane")
{
ci.AlphaBlend(wm, 0.7);
ci.er_plane.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
else if (mode == "abfull")
{
try
{
string alpha = context.Request.QueryString["alpha"];
double a = Convert.ToDouble(alpha) / 10.0;
ci.AdvancedAlphaBlend(alpha: a);
}
catch (Exception)
{
ci.AdvancedAlphaBlend();
}
ci.HaarRestore();
ci.ConcatPlanes();
ci.concatbmp.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
else if (mode == "abfull_plane")
{
ci.AdvancedAlphaBlend(0.5);
ci.er_plane.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
else if (mode == "abfull_all")
{
try
{
string alpha = context.Request.QueryString["alpha"];
double a = Convert.ToDouble(alpha) / 10.0;
ci.AdvancedAlphaBlend(alpha: a, allplanes: true);
}
catch (Exception)
{
ci.AdvancedAlphaBlend(allplanes: true);
}
ci.HaarRestore();
ci.ConcatPlanes();
ci.concatbmp.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
else if (mode == "abfull_all_plane")
{
ci.AdvancedAlphaBlend(alpha: 0.7, allplanes: true);
ci.er_plane.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
else if (mode == "abfull_rand")
{
try
{
string alpha = context.Request.QueryString["alpha"];
double a = Convert.ToDouble(alpha) / 10.0;
ci.AdvancedAlphaBlend(alpha: a, random: true);
}
catch (Exception)
{
ci.AdvancedAlphaBlend(random: true);
}
ci.HaarRestore();
ci.ConcatPlanes();
ci.concatbmp.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
else if (mode == "abfull_rand_plane")
{
ci.AdvancedAlphaBlend(alpha: 0.7, random: true);
ci.eb_plane.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
else if (mode == "abfull_ex")
{
Bitmap ex_wm = ci.ExtractWatermark(wm);
ex_wm.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
else if (mode == "abfull_ex_rand")
{
Bitmap ex_wm;
try
{
string alpha = context.Request.QueryString["alpha"];
double a = Convert.ToDouble(alpha) / 10.0;
ex_wm = ci.ExtractWatermark(wm, true, alpha: a);
}
catch (Exception)
{
ex_wm = ci.ExtractWatermark(wm, true);
}
ex_wm.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
}
else
{
AltariaImage ci = (AltariaImage)context.Session[filename];
ci.originalbmp.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Bmp);
}
}
