Im creating a new Bitmap object as below,
var image = new Bitmap(@"C:\file.jpg"); I will be doing several modifications in pixel levels in the spatial domain and if save this object again as below.
image.Save(@"D:\final.jpg", ImageFormat.bitmap); Using this functional is there a way we can save a jpg lossless ?
image.Save(@"D:\final.jpg", ImageFormat.Bmp); will save a bitmap image in spite of the extension
Jpg is a lossy compression method, if you want loseless you can use either Bmp or Png
The Bitmap class is always in a 'raw' format. So what happens in your code is:
The contents of the Bitmap class after that is still in raw lossless format so that you can continue to manipulate it, or save it to file in yet another format (lossless or lossy).
Note: The 'raw' format I mentioned above is not the same format as some .raw files that you sometimes encounter in music editing programs. By 'raw' format I just mean some temporary arbitrary format that Bitmap uses to store the image data in itself (possibly in byte[]).
