Try something like this: BitmapImage GetImage( byte[] rawImageBytes ) { BitmapImage imageSource = null; try { using ( MemoryStream stream = new MemoryStream( rawImageBytes ) ) { stream.Seek( 0, SeekOrigin.Begin ); BitmapImage b = new BitmapImage(); b.SetSource( stream ); imageSource = b; } } catch ( System.Exception ex ) { } return imageSource; }
I was dealing with the same problem and I think, in the end, that actually I’ve found a workaround, I am not a pro programmer but here is my solution: public Task ReleaseSingleImageMemoryTask(MyImage myImage, object control) { Pivot myPivot = control as Pivot; Task t = Task.Factory.StartNew(() => { Deployment.Current.Dispatcher.BeginInvoke(() => { if (myImage.img.UriSource != … Read more
Found an answer that works for me: BitmapImage _image = new BitmapImage(); _image.BeginInit(); _image.CacheOption = BitmapCacheOption.None; _image.UriCachePolicy = new RequestCachePolicy(RequestCacheLevel.BypassCache); _image.CacheOption = BitmapCacheOption.OnLoad; _image.CreateOptions = BitmapCreateOptions.IgnoreImageCache; _image.UriSource = new Uri(@”Y:/screenshots/naratco08-0-0-screenshot.png”, UriKind.RelativeOrAbsolute); _image.EndInit(); ScreenAtco01Image.Source = _image;
Putting that amount of data in extras is not a good approach. Easiest work around is keep a static reference of the new Bitmap public static Bitmap getBitmap(Bitmap changeBitmap){ return bitmap; } And after using it recyle it i this manner. if(changedBitmap!=origanlBitmap) orignalBitmap.recycle();
Here is the Solution I have done with Pixels. Attaching the source code so one can try the exact and get the result. I have sample images of 128×128 (Width x Height). using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Drawing; using System.IO; //using System.Globalization; namespace colorchange { class Program { static void Main(string[] … Read more
Given an array of bytes where each byte represents a pixel value, you may create a grayscale bitmap like shown below. You need to specify the width and height of the bitmap, and that must of course match the buffer size. byte[] buffer = … // must be at least 10000 bytes long in this … Read more
I believe the solution you are looking for is at http://www.ridgesolutions.ie/index.php/2012/02/03/net-wpf-bitmapimage-file-locking/. In my case, I was trying to find a way to delete the file after it was created, but it appears to be a solution to both issues. Doesn’t free up memory: var bitmap = new BitmapImage(new Uri(imageFilePath)); Frees up memory, and allows file … Read more
To convert to a byte[] you can use a MemoryStream: byte[] data; JpegBitmapEncoder encoder = new JpegBitmapEncoder(); encoder.Frames.Add(BitmapFrame.Create(bitmapImage)); using(MemoryStream ms = new MemoryStream()) { encoder.Save(ms); data = ms.ToArray(); } Instead of the JpegBitmapEncoder you can use whatever BitmapEncoder you like as casperOne said. If you are using MS SQL you could also use a image-Column … Read more
There is no API to save into file directly because, generally, having a bitmap handle does not mean you have direct access to bitmap data. Your solution is to copy bitmap into another bitmap with data access (DIB) and then using it data to write into file. You typically either create another bitmap using CreateDIBSection, … Read more
As shown in the question you link to, you’d need to call BeginInit and EndInit, like so as well as set the UriSource property: Dim bmi As New BitmapImage() bmi.BeginInit() bmi.CacheOption = BitmapCacheOption.OnLoad bmi.UriSource = New Uri(fiInfo.FullName, UriKind.Absolute) bmi.EndInit()