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<TITLE>AspUpload.com - AspJpeg JPEG Image Resizing Component</TITLE>
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<B>AspJpeg 1.1 - High-Quality JPEG Thumbnail Component</B>
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<BLOCKQUOTE>
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If you need to resize JPEG images on the fly, consider AspJpeg 1.1.
This easy-to-use component enables you to create high-quality image thumbnails
in just a few lines of code.
<P>
If you are developing an online photo album or any other web-based
application where users can upload their digital pictures
to the server, AspJpeg can be used in tandem with AspUpload
to create thumbnails of the images as they are being uploaded.
AspJpeg makes a great companion to the Persits Software upload suite.
<P>
AspJpeg features include:
<B>
<UL>
<LI>Support for three popular image resizing algorithms: Nearest-Neighbor,
Bilinear and Bicubic.
<LI>Resultant thumbnails can be saved to disk or sent directly to client browser
for better performance.
<LI>Image sharpening, cropping and flipping <FONT COLOR="#FF0000"><I>New in 1.1</i></FONT>
<LI>Access to the size information of source images.
<LI>Adjustable degree of JPEG compression.
<LI>Currently, only the JPEG format is supported.
</UL>
</B>
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<B>What's New in AspJpeg 1.1</B>
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<BLOCKQUOTE>
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<B><U>Image Sharpening</U></B><P>
AspJpeg 1.1 offers image sharpening functionality via the <B>Sharpen</B>(radius, amount) method.
The image on the left (see below) is a regular thumbnail with no sharpening applied.
The image on the right is sharpened via the method call
<P>
<FONT FACE="Courier New"><B>Jpeg.Sharpen 1, 120</B></FONT>
<P>
<TABLE CELLSPACING=0 CELLPADDING=1>
<TR><TD><IMG SRC="porsche1.jpg"></TD><TD><IMG SRC="porsche2.jpg"></TD></TR>
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<P>
<B><U>Cropping</U></B><P>
AspJpeg 1.1 enables you to crop image thumbnails via the method <B>Crop</B>(x0, y0, x1, y1):
<P>
<IMG SRC="porsche4.gif">
<P>
<B><U>Flipping</U></B><P>
With AspJpeg 1.1, you can also flip an image vertically and/or horizontally
via the methods <B>FlipV</B> and <B>FlipH</B>, respectively.
</FONT>
</BLOCKQUOTE>
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<B>Code Sample 1: Simple Resizing</B>
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The following script opens a JPEG image on the hard drive, resizes it and saves
the resultant thumbnail back to disk.<P>
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<B>
<%<BR>
</B><I>' Create an instance of AspJpeg</I><B><BR>
Set Jpeg = Server.CreateObject("Persits.Jpeg")<P>
</B><I>' Compute path to source image</I><B><BR>
Path = Server.MapPath("images") & "\test.jpg"<P>
</B><I>' Open source image</I><B><BR>
Jpeg.Open Path<P>
</B><I>' Decrease image size by 50%</I><B><BR>
Jpeg.Width = Jpeg.OriginalWidth / 2<BR>
Jpeg.Height = Jpeg.OriginalHeight / 2<P>
</B><I>' Optional: apply sharpening</I><B><BR>
Jpeg.Sharpen 1, 150<P>
</B><I>' Create thumbnail and save it to disk</I><B><BR>
Jpeg.Save Server.MapPath("images") & "\test_small.jpg"<BR>
%>
</B>
</FONT>
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<B>Code Sample 2: Sending a Thumbnail Directly to Browser</B>
</FONT>
<BLOCKQUOTE>
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AspJpeg is capable of sending a thumbnail directly to
the client browser rather than saving it to disk.
An image resizing script can be invoked via the <B>SRC</B>
attribute of an <B><IMG></B> tag as follows:
<P>
<FONT FACE="Courier New" SIZE="2"><B>
<IMG SRC="resize.asp?path=c:\dir\myimage.jpg&width=100">
</B></FONT>
<P>
The script <B>resize.asp</B> may look like this:
<P>
<FONT FACE="Courier New" SIZE="2"><B>
<%<BR>
</B><I>' IMPORTANT: This script must not contain any HTML tags</i><B><BR>
</B><I>' Create an instance of AspJpeg object</i><B><BR>
Set jpeg = Server.CreateObject("Persits.Jpeg")<P>
jpeg.Open( Request("path") )<P>
</B><I>' Set new width</i><B><BR>
jpeg.Width = Request("width")<P>
</B><I>' Set new height, preserve original width/height ratio</i><B><BR>
jpeg.Height = _<BR>
jpeg.OriginalHeight * jpeg.Width / jpeg.OriginalWidth<P>
</B><I>' Send thumbnail data to client browser</i><B><BR>
jpeg.SendBinary<BR>
%>
</B></FONT>
</FONT>
</BLOCKQUOTE>
<P>
<FONT SIZE=3 FACE=ARIAL COLOR="#0000FF">
<B>Check Out the <A HREF="http://support.persits.com/jpeg/pick_jpeg.asp" TARGET="_new">AspJpeg Live Demo!</A></B>
</FONT>
<BLOCKQUOTE>
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<!--<FONT COLOR="#FF0000"><B>Sorry, our live demo is currently down. We are working to resolve the problem.
Please check back later. We apologize for the inconvenience.</B></FONT><P>-->
Why wait? Put AspJpeg to work now! Upload a JPEG image to our server
and let the AspJpeg component show you what it can do.
</FONT>
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<B>Download & Purchase AspJpeg</B>
</FONT>
<BLOCKQUOTE>
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The AspJpeg setup comes with many more code samples and
a complete user manual. <A HREF="http://www.persits.com/aspjpeg.exe"><B>Download</B></A>
your free 30-day trial version now (1.23MB).
<P>
Purchase AspJpeg with your credit card on-line. We accept Visa, MasterCard
and American Express.
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<TR><TD VALIGN="TOP" BGCOLOR="#DDDDDD"><FONT FACE="Arial" SIZE="2"><B>Single Server License</B></FONT></TD><TD VALIGN="TOP" BGCOLOR="#DDDDDD"><FONT FACE="Arial" SIZE="2"><B>$150.00</B></FONT></TD><TD VALIGN="TOP" BGCOLOR="#DDDDDD"><INPUT TYPE="SUBMIT" VALUE="Purchase"></TD></TR>
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<TR><TD BGCOLOR="#EEEEEE" VALIGN="TOP"><FONT FACE="Arial" SIZE="2"><B>Enterprise License</B><BR>
(component can be installed on any number of servers within a single
organization)</FONT></TD><TD BGCOLOR="#EEEEEE" VALIGN="TOP"><FONT FACE="Arial" SIZE="2"><B>$450.00</B></FONT></TD><TD BGCOLOR="#EEEEEE" VALIGN="TOP"><INPUT TYPE="SUBMIT" VALUE="Purchase"></TD></TR>
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