Android 使用libyuv-对比OpenCV

最新推荐文章于 2025-02-06 17:09:35 发布

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最新推荐文章于 2025-02-06 17:09:35 发布

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文章标签： android opencv libyuv

本文链接：https://blog.youkuaiyun.com/wolf0706/article/details/143238734

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//使用libyuv将YUV数据转为RGB数据
 var yuvStart = System.currentTimeMillis()
 var y = ByteArray(1920*1080)
 var u = ByteArray(1920*1080/4)
 var v = ByteArray(1920*1080/4)
 System.arraycopy(data,0,y,0,y.size)
 System.arraycopy(data,y.size,u,0,u.size)
 System.arraycopy(data,y.size+u.size,v,0,v.size)
 yuvUtil?.let {
     var yuvUtilImage = it.yuv2rgb(y,u,v,1920,1080)
     Log.i(TAG,"yuvUtil time:"+(System.currentTimeMillis()-yuvStart))
 }

 //使用OpenCV将YUV数据转为RGB数据
 var opencvStart = System.currentTimeMillis()
 var yuvMat = Mat(1080 + 1080 / 2, 1920, CvType.CV_8UC1)
 yuvMat.put(0,0,data)
 var rgbMat = Mat(1080,1920,CvType.CV_8UC3)
 Imgproc.cvtColor(yuvMat,rgbMat,Imgproc.COLOR_YUV2RGB_I420)
 var openCvImage = ByteArray(1920*1080*3)
 rgbMat.get(0,0,openCvImage)
 Log.i(TAG,"opencv time:"+(System.currentTimeMillis()-opencvStart))