UWP图像到位图的转换

Question

I'm trying to convert an image to a bitmap in order to use AForge filters. On MSN website i saw that Bitmap has an image contructor but when i try it it doesn't work. This is the code i have :

                     Bitmap bitmap = new Bitmap(image1);

Answer 1

You can't convert directly between System.Drawing.Bitmap and Windows.UI.Xaml.Controls.Image .

Think of AForge as using the Bitmap class, while UWP uses the WritableBitmap for its images. You'll need to find a way to convert between the two.

Take a look at the Usage section of this Aforge.Net library , which provides one way of doing things (Quoted):

// Use explicit operator to convert from WriteableBitmap to Bitmap
Bitmap bitmap = (Bitmap)aWriteableBitmapObject;

// Apply one or more filter functions on the Bitmap object
var filter1 = AForge.Imaging.Filters.Grayscale.CommonAlgorithms.RMY;
bitmap = filter1.Apply(bitmap);
var filter2 = new AForge.Imaging.Filters.CannyEdgeDetector();
filter2.ApplyInPlace(bitmap);

// Use explicit operator to convert back from Bitmap to WriteableBitmap
aWriteableBitmapObject = (WriteableBitmap)bitmap;