// Change the image with black and white filter applied
private void doBlackWhite(Stream stream, WriteableBitmap bitmap, RemedyImage givenImage)
{
rootPage.prepareImage(stream, bitmap, givenImage);
givenImage.BlackAndWhite(givenImage.dstPixels, givenImage.srcPixels);
rootPage.setStream(stream, bitmap, givenImage);
}
