public static async Task <byte[]> ResizeImageTizen(byte[] imageData, float width, float height) { using (JpegDecoder jpegDecoder = new JpegDecoder()) { Size newImageSize = new Size((int)width, (int)height); IEnumerable <BitmapFrame> image = await jpegDecoder.DecodeAsync(imageData); Size oldImageSize = image.First().Size; byte[] rawImageData = image.First().Buffer; using (MediaPacket mediaPacket = MediaPacket.Create(new VideoMediaFormat(MediaFormatVideoMimeType.Rgba, oldImageSize))) { mediaPacket.VideoPlanes[0].Buffer.CopyFrom(rawImageData, 0, rawImageData.Length); using (ImageTransformer imageTransformer = new ImageTransformer()) { using (MediaPacket newMediaPacket = await imageTransformer.TransformAsync(mediaPacket, new ResizeTransform(newImageSize))) { IMediaBuffer buffer = newMediaPacket.VideoPlanes[0].Buffer; byte[] newRawImageData = new byte[buffer.Length]; buffer.CopyTo(newRawImageData, 0, buffer.Length); using (var jpegEncoder = new JpegEncoder()) { jpegEncoder.Quality = 100; jpegEncoder.SetResolution(newImageSize); using (MemoryStream ms = new MemoryStream()) { await jpegEncoder.EncodeAsync(newRawImageData, ms); return(ms.ToArray()); } } } } } } }