c# - How to compress image byte[] array to JPEG/PNG and return ImageSource object -

i have image (in form of byte[] array) , want compressed version of it. either png or jpeg compressed version.

i use following code @ minute:

private media.imagesource getimage(byte[] imagedata, system.windows.media.pixelformat format, int width = 640, int height = 480) {      return system.windows.media.imaging.bitmapsource.create(width, height, 96, 96, format, null, imagedata, width * format.bitsperpixel / 8); } 

how extend can compress , return compressed version of image source (with degraded quality).

thanks in advance!

using right encoder pngbitmapencoder should work:

private imagesource getimage(byte[] imagedata, system.windows.media.pixelformat format, int width = 640, int height = 480)     {         using (memorystream memorystream = new memorystream())         {             pngbitmapencoder encoder = new pngbitmapencoder();                                             encoder.interlace = pnginterlaceoption.on;             encoder.frames.add(bitmapframe.create(bitmapsource.create(width, height, 96, 96, format, null, imagedata, width * format.bitsperpixel / 8)));             encoder.save(memorystream);             bitmapimage imagesource = new bitmapimage();             imagesource.begininit();             imagesource.streamsource = memorystream;             imagesource.endinit();             return imagesource;         }                 }