Rendering out camera images to a WPF Image control

Question

I have a uEye camera and I take snapshots of images at a 1000ms interval and I want to render them in a WPF Image Control like so

 Bitmap MyBitmap;

// get          


        

Answer 1

Here the way we do (for me it works at 200fps without loading CPU (about 5%)):

    private WriteableBitmap PrepareForRendering(VideoBuffer videoBuffer) {
        PixelFormat pixelFormat;
        if (videoBuffer.pixelFormat == PixFrmt.rgb24) {
            pixelFormat = PixelFormats.Rgb24;
        } else if (videoBuffer.pixelFormat == PixFrmt.bgra32) {
            pixelFormat = PixelFormats.Bgra32;
        } else if (videoBuffer.pixelFormat == PixFrmt.bgr24) {
            pixelFormat = PixelFormats.Bgr24;
        } else {
            throw new Exception("unsupported pixel format");
        }
        var bitmap = new WriteableBitmap(
            videoBuffer.width, videoBuffer.height,
            96, 96,
            pixelFormat, null
        );
        _imgVIew.Source = bitmap;
        return bitmap;
    }

    private void DrawFrame(WriteableBitmap bitmap, VideoBuffer videoBuffer, double averangeFps) {
        VerifyAccess();
        if (isPaused) {
            return;
        }

        bitmap.Lock();
        try {
            using (var ptr = videoBuffer.Lock()) {
                bitmap.WritePixels(
                    new Int32Rect(0, 0, videoBuffer.width, videoBuffer.height),
                    ptr.value, videoBuffer.size, videoBuffer.stride,
                    0, 0
                );
            }
        } finally {
            bitmap.Unlock();
        }
        fpsCaption.Text = averangeFps.ToString("F1");
    }