我该如何合并两个图像为一体？ [英] How can I merge two images into one?

问题描述

我有大约70％不透明度面具的形象，我有一个从服务器下载其他图像。我该如何重绘他们向已下载的图像权奠定面膜图像下方单一的形象？我不想用的帆布，因为我将使用全景背景合并图像和画布是行不通的。

事情是这样的：

 使用（图形grfx = Graphics.FromImage（图片））
{
    grfx.DrawImage（newImage中，x，y）的
}
 

我试过，但没有运气：

 的BitmapImage BMP =新的BitmapImage（）;
        BitmapImage的双向=新的BitmapImage（）;        的ImageBrush的ImageBrush =新的ImageBrush（）;
        的ImageBrush imageBrush2 =新的ImageBrush（）;        bi.UriSource =新的URI（图像/的MainPage / mask_bg.png，UriKind.Relative）;
        bmp.UriSource =新的URI（图像/的MainPage / covertart_bg.jpg，UriKind.Relative）;        TranslateTransform翻译=新TranslateTransform
        {
            X = 0，
            Y = 0
        };
        imageBrush.ImageSource = BMP;
        ImageCanvas帆布=新ImageCanvas（）;
        canvas.Background =的ImageBrush;        WriteableBitmap的w_bitmap =新的WriteableBitmap的（1065，800）;
        w_bitmap.Render（帆布，翻译）;
        w_bitmap.Invalidate（）;        imageBrush2.ImageSource = w_bitmap;
        mainPanorama.Background = imageBrush2;
 

解决方案

使用从的 BLIT 方法=HTTP：//writeablebitmapex.$c$ cplex.com/相对=nofollow> WriteableBitmapEx 项目

I have a mask image with opacity about 70%, and I have another image that is downloaded from server. How can I redraw them to single image that have the downloaded image lay right below the mask image? I don't want to use canvas because I will use the merge image for panorama background, and canvas wouldn't work.

Something like this:

using (Graphics grfx = Graphics.FromImage(image))
{
    grfx.DrawImage(newImage, x, y)
}

I tried this but no luck:

        BitmapImage bmp = new BitmapImage();
        BitmapImage bi = new BitmapImage();

        ImageBrush imageBrush = new ImageBrush();
        ImageBrush imageBrush2 = new ImageBrush();

        bi.UriSource = new Uri("Images/MainPage/mask_bg.png", UriKind.Relative);
        bmp.UriSource = new Uri("Images/MainPage/covertart_bg.jpg", UriKind.Relative);

        TranslateTransform translate = new TranslateTransform
        {
            X = 0,
            Y = 0
        };
        imageBrush.ImageSource = bmp;
        ImageCanvas canvas = new ImageCanvas();
        canvas.Background = imageBrush;

        WriteableBitmap w_bitmap = new WriteableBitmap(1065, 800);
        w_bitmap.Render(canvas, translate);
        w_bitmap.Invalidate();

        imageBrush2.ImageSource = w_bitmap;
        mainPanorama.Background = imageBrush2;

解决方案

Use the Blit method from the WriteableBitmapEx project

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