bitmapimage

I am working with Images in Java, I have designed more over 100+ images(.png) format, They were all Trasparent and Black Color Drawing. The problem is, Now I have been asked to change the color of the Drawing (Black -to ). I have searched many code snipped at google,that changes the Bitmap (pixels) of the Image, but i am not guessing what i have to do to match the exact pixel and replace specially when the images if in Transparent mode. Below is the code in .Net (C#) Bitmap newBitmap = new Bitmap(scrBitmap.Width, scrBitmap.Height); for (int i = 0; i < scrBitmap.Width; i++) { for (int j = 0; j

First, I load a BitmapImage on the Image control on the Window . Second, I work with the Image control and then close the Window . I do it 2-3 times in a minute and my memory fills up very quickly because the images do not unload back when the window is closed. So how to unload BitmapImage from Image.Source control manually to free the memory? 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

I have a HBITMAP in my pure Win32 project (no external libraries are used). Can I export it to a *.bmp file using only Winapi and/or CRT functions so I don't incur any extra dependencies? Roman R. 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 , or you get bitmap data with GetDIBits . CreateFile , WriteFile writes data

I have a BitmapImage that I'm using in a WPF application, I later want to save it to a database as a byte array (I guess it's the best way), how can I perform this conversion? Or, alternatively, is there a better way to save a BitmapImage (or any of its base classes, BitmapSource or ImageSource ) to a data repository? 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

I am creating a byte array with arbitrary values in it and want to convert it into a BitmapImage. bi = new BitmapImage(); using (MemoryStream stream = new MemoryStream(data)) { try { bi.BeginInit(); bi.CacheOption = BitmapCacheOption.OnLoad; bi.StreamSource = stream; bi.DecodePixelWidth = width; bi.EndInit(); } catch (Exception ex) { return null; } } This code gives me a NotSupportedException all the time. How could I create a BitmapSource from any byte array? Given an array of bytes where each byte represents a pixel value, you may create a grayscale bitmap like shown below. You need to