How to save a Non-Progressive JPEG?

Question

User-2085917704 posted

I have an ASP.NET 2.0 web application that allows users to upload jpeg files.  The application then creates thumbnails of the upload jpeg files and saves them to disk (using C# 2.0).<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

The web application has a Macromedia Flash object and loads the thumbnails that were generated. As you can see from the link below, macromedia flash doesn't supported Progressive jpegs.<o:p></o:p>

http://www.macromedia.com/cfusion/knowledgebase/index.cfm?id=tn_16389<o:p></o:p>

How can I use .NET 2.0 to save a JPEG image as non progressive? Image.Save always saves the image as Progressive.<o:p></o:p>

Thanks in advantage for your help

Answer 1

User-2085917704 posted

Is this even possible? Do someone know for a fact that .Net can't save non-progressive jpeg?

Thanks

Answer 2

User1155441296 posted

 You can save non progressive jpeg.

 

Image imgPhoto = Image.FromFile("FileName")

//Set Image codec of JPEG type, the index of JPEG codec is "1"
ImageCodecInfo codec = ImageCodecInfo.GetImageEncoders()[1];

EncoderParameters eParams = new EncoderParameters(1);
eParams.Param[0] = new EncoderParameter(Encoder.RenderMethod, EncoderValue.RenderNonProgressive.ToString());

imgPhoto.Save(savePath, codec, eParams);