I searched in many forums and I didn't get what I want.
My question is clear and simple : How to resize pixel of WriteableBitmap , for example from 300*300 to 500*500
Look at the WritableBitmapEx project. You can use it or learn how to resize your image. It is easy to do it by using WritableBitmapEx
extensions methods.
// Resizes the WriteableBitmap to 200px wide and 300px high using a bilinear interpolation method
var resized = writeableBmp.Resize(200, 300, WriteableBitmapExtensions.Interpolation.Bilinear);
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