ARCore for Unity保存相机图像 [英] ARCore for Unity save camera image

问题描述

使用ARCore for Unity，尝试将Frame.CameraImage.AcquireCameraImageBytes()另存为图像并扫描图像以获取QR码.但是转换后的图像不是实际比例，而是重复的，因此无法正确推导QR码.

Using ARCore for Unity, trying to save Frame.CameraImage.AcquireCameraImageBytes() as image and scanning the image for QR code. But the converted image is not in actual scale and it is repeating, so not able to deduct the QR code correctly.

这是我的代码

void Update()
{
using (var image = Frame.CameraImage.AcquireCameraImageBytes())
    {
        if (image.IsAvailable)
        {               

            byte[] m_EdgeImage = null;
            Color32[] pixels = null;
            IParser Parser = new ZXingParser();
            if (_texture == null || m_EdgeImage == null || _texture.width != image.Width || _texture.height != image.Height)
            {
                _texture = new Texture2D(image.Width, image.Height, TextureFormat.RGBA32, false, false);                    
                m_EdgeImage = new byte[image.Width * image.Height*4];           

            }
            System.Runtime.InteropServices.Marshal.Copy(image.Y, m_EdgeImage, 0, image.Width * image.Height);               
            _texture.LoadRawTextureData(m_EdgeImage);
            _texture.Apply();       

            ParserResult Result = Parser.Decode(pixels, _texture.width, _texture.height);
            if (Result != null)
            {
                Debug.Log("QRCODE");

            }
            else
            {               
                var encodedJpg = _texture.EncodeToJPG();
                var path = Application.persistentDataPath;
                File.WriteAllBytes(path + "/test.jpg", encodedJpg);             
                Debug.Log("NOQRCODE");
                Application.Quit();
            }
        }
    }
}

这是转换后的图像

这是怎么了

推荐答案

可从CPU以YUV-420-888格式访问其数据的ARCore摄像机图像

An ARCore camera image with its data accessible from the CPU in YUV-420-888 formatCheck this. The buffer size is width*height*1.5 for YUV. You may need to convert YUV to RGB format.

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