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ThumbNail Creation in ASP.Net
Creation of thumbnails from image in ASP.Net is very easy task.
Following are Steps to create thumbnails image in ASP.Net :
1)Read the Image using the method Image.FromStream() as,
Dim imInputImage, imThumbNail As Image
imInputImage = System.Drawing.Image.FromStream(imgUpload.PostedFile.InputStream)
here,imgUploadis the id of FileUpload Control.
2)Get the ThumbNail Image using the method GetThumbnailImage.
imThumbNail = imInputImage.GetThumbnailImage(100, 100, Nothing, System.IntPtr.Zero)
We can also specify the format of the Thumbnail image we want to save by,
imThumbNail.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg)
Some of the Formats can be,
Jpeg- System.Drawing.Imaging.ImageFormat.Jpeg
Gif - System.Drawing.Imaging.ImageFormat.Gif
Tiff- System.Drawing.Imaging.ImageFormat.Tiff
Png - System.Drawing.Imaging.ImageFormat.Png
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