bitmapimage

BitmapImage bitmapImage = new BitmapImage(new Uri("arka_projects_as_logo.png", UriKind.Relative)); Image uiElement = new Image() { Source = bitmapImage }; ScaleTransform t = new ScaleTransform() { ScaleX = 0.2, ScaleY = 0.2 }; WriteableBitmap writeableBitmap = new WriteableBitmap(uiElement,t); I want to insert the result of this conversions (writeableBitmap) into System.Windows.Controls.Image. When I do this: Image arkaImage = new Image() { Source = writeableBitmap }; arkaImage isn't shown at all. What can be done to make it work? WriteableBitmap wb = .. using (MemoryStream ms = new

I am working on a Windows 8 Metro app that applies filters to images. I have a web version of the app and wanted to port it. But as we all know WinRT doesn't have all the good things .NET provides otherwise :/ Currently I am applying the filters on a byte array and I want to keep it that way, because it's super fast! So for the past few days I have been searching for ways to convert a StorageFile to byte[] and then byte[] to BitmapImage. So far I have managed to do the first one (StorageFile to byte[]). Here is how I do it: public async Task<Byte[]> ImageFileToByteArray(StorageFile file) {

I am working on a windows Phone app that can read Album arts dynamically from Music files through MediaPlayer APIs. I wish to get album arts and resize for view's background. Since the resize would lose details and make image ugly so I would like to blur it or some kind of effect. Is there any API that I can blur the image? (either from C# or XAML)? Thanks a lot! I would start by using WriteableBitmap instead, to get a WriteableBitmap from a BitmapImage you can do the following: WriteableBitmap wb = new WriteableBitmap(bitmapImage); Then I would recommend using the WriteableBitmapExtension

I've a byte array which contains an image binary data in bitmap format. How do I display it using the PictureBox control in C#? I went thru a couple of posts listed below but not sure if I need to convert the byte array into something else before sending it to a picturebox. I'd appreciate your help. Thanks! How to put image in a picture box from Bitmap Load Picturebox Image From Memory? John Woo This function converts byte array into Bitmap which can be use to set the Image Property of the picturebox. public static Bitmap ByteToImage(byte[] blob) { MemoryStream mStream = new MemoryStream();

I would like to read a bitmap file into a struct and manuplate it like make a mirror effect etc. but I cannot understand which kind of struct should i be creating in order to read into it. Thank you for your help ollo »This is how you maually load a bmp file The bitmap file format: Bitmap file header Bitmap info header palette data Bitmap Dada so on with the code part, this is our struct we need to create to hold the bitmap file header #pragma pack(push, 1) typedef struct tagBITMAPFILEHEADER { WORD bfType; //specifies the file type DWORD bfSize; //specifies the size in bytes of the bitmap file

How are you supposed to dispose of a BitmapSource ? // this wont work because BitmapSource doesnt implement IDisposable using(BitmapSource bitmap = new BitmapImage(new Uri("myimage.png"))) { } You do not have to Dispose() a BitmapSource . Unlike some other "image" classes in the Framework, it does not wrap any native resources. Just let it go out of scope, and the garbage collector will free its memory. 来源： https://stackoverflow.com/questions/1591996/proper-way-to-dispose-a-bitmapsource

I have an application(WPF) which creates BitmapImages in huge numbers(like 25000). Seems like framework uses some internal logic so after creation there are approx 300 mb of memory consumed(150 virtual and 150 physical). These BitmapImages are added into Image object and they are added into Canvas. The problem is that when I release all those images memory isn't freed. How can I free memory back? The application is simple: Xaml <Grid> <Grid.RowDefinitions> <RowDefinition Height="*"/> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition/>

I need to dynamically load many (sometimes hundreds) of thumbnail images. For performance reasons I need to do this in a limited number of requests, I am using a single request/response for testing. I am sending the binary data for the images in the response and loading them into BitmapImage's using a MemoryStream. This works correctly until I load more than about 80 thumbnails, then I get the Catastrophic Failure exception. To make sure my data was not corrupt I tried loading a BitmapImage multiple times with the same byte array and it crashes after 80 or so loads. Here is a sample of how the

I want to reduce the size of a bitmap to 200kb exactly. I get an image from the sdcard, compress it and save it to the sdcard again with a different name into a different directory. Compression works fine (3 mb like image is compressed to around 100 kb). I wrote the following lines of codes for this: String imagefile ="/sdcard/DCIM/100ANDRO/DSC_0530.jpg"; Bitmap bm = ShrinkBitmap(imagefile, 300, 300); //this method compresses the image and saves into a location in sdcard Bitmap ShrinkBitmap(String file, int width, int height){ BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options