http://snippets.dzone.com/posts Mon, 13 Oct 2008 23:30:27 GMT DZone Snippets: images code http://snippets.dzone.com/posts/show/1485 using System; <br />using System.Drawing; <br />using System.Drawing.Drawing2D; <br />using System.Drawing.Imaging; <br />using System.IO; <br /> <br /><code> <br />public static byte[] ResizeImageFile(byte[] imageFile, int targetSize) <br />{ <br /> Image original = Image.FromStream(new MemoryStream(imageFile)); <br /> int targetH, targetW; <br /> if (original.Height > original.Width) <br /> { <br /> targetH = targetSize; <br /> targetW = (int)(original.Width * ((float)targetSize / (float)original.Height)); <br /> } <br /> else <br /> { <br /> targetW = targetSize; <br /> targetH = (int)(original.Height * ((float)targetSize / (float)original.Width)); <br /> } <br /> Image imgPhoto = Image.FromStream(new MemoryStream(imageFile)); <br /> // Create a new blank canvas. The resized image will be drawn on this canvas. <br /> Bitmap bmPhoto = new Bitmap(targetW, targetH, PixelFormat.Format24bppRgb); <br /> bmPhoto.SetResolution(72, 72); <br /> Graphics grPhoto = Graphics.FromImage(bmPhoto); <br /> grPhoto.SmoothingMode = SmoothingMode.AntiAlias; <br /> grPhoto.InterpolationMode = InterpolationMode.HighQualityBicubic; <br /> grPhoto.PixelOffsetMode = PixelOffsetMode.HighQuality; <br /> grPhoto.DrawImage(imgPhoto, new Rectangle(0, 0, targetW, targetH), 0, 0, original.Width, original.Height, GraphicsUnit.Pixel); <br /> // Save out to memory and then to a file. We dispose of all objects to make sure the files don't stay locked. <br /> MemoryStream mm = new MemoryStream(); <br /> bmPhoto.Save(mm, System.Drawing.Imaging.ImageFormat.Jpeg); <br /> original.Dispose(); <br /> imgPhoto.Dispose(); <br /> bmPhoto.Dispose(); <br /> grPhoto.Dispose(); <br /> return mm.GetBuffer(); <br />} <br /></code> Tue, 14 Feb 2006 23:35:29 GMT http://snippets.dzone.com/posts/show/1485 Edgardo (Edgardo Rossetto) http://snippets.dzone.com/posts/show/1484 using System; <br />using System.Drawing; <br />using System.Drawing.Drawing2D; <br />using System.Drawing.Imaging; <br />using System.IO; <br /> <br /><code> <br />public static byte[] CropImageFile(byte[] imageFile, int targetW, int targetH, int targetX, int targetY) <br />{ <br /> Image imgPhoto = Image.FromStream(new MemoryStream(imageFile)); <br /> Bitmap bmPhoto = new Bitmap(targetW, targetH, PixelFormat.Format24bppRgb); <br /> bmPhoto.SetResolution(72, 72); <br /> Graphics grPhoto = Graphics.FromImage(bmPhoto); <br /> grPhoto.SmoothingMode = SmoothingMode.AntiAlias; <br /> grPhoto.InterpolationMode = InterpolationMode.HighQualityBicubic; <br /> grPhoto.PixelOffsetMode = PixelOffsetMode.HighQuality; <br /> grPhoto.DrawImage(imgPhoto, new Rectangle(0, 0, targetW, targetH), targetX, targetY, targetW, targetH, GraphicsUnit.Pixel); <br /> // Save out to memory and then to a file. We dispose of all objects to make sure the files don't stay locked. <br /> MemoryStream mm = new MemoryStream(); <br /> bmPhoto.Save(mm, System.Drawing.Imaging.ImageFormat.Jpeg); <br /> imgPhoto.Dispose(); <br /> bmPhoto.Dispose(); <br /> grPhoto.Dispose(); <br /> return mm.GetBuffer(); <br />} <br /></code> Tue, 14 Feb 2006 23:34:05 GMT http://snippets.dzone.com/posts/show/1484 Edgardo (Edgardo Rossetto)