Multichannel separation

API

public static void split(Mat m, List<Mat> mv)

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  • Parameter 1: m, multi-channel image to be separated
  • Parameter 2: MV, single channel image after separation

operation

override fun onCreate(savedInstanceState: Bundle?). {

    super.onCreate(savedInstanceState)

    mBinding = DataBindingUtil.setContentView(this, R.layout.activity_channel_split_merge)

    mBgr = Utils.loadResource(this, R.drawable.test)

    val imgList = mutableListOf<Mat>()

    Core.split(mBgr, imgList)

    mChannelB = imgList[0]

    mChannelG = imgList[1]

    mChannelR = imgList[2]

}

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Channel merging

API

public static void merge(List<Mat> mv, Mat dst)

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  • Parameter 1: mv, an array of images to be merged, where each image must have the same size and data type
  • Parameter 2: DST, the image output after merging has the same size and data type as MV [0], and the number of channels is equal to the sum of the number of channels of all input images

operation

private fun showBGZero(a) {

    val zero = Mat.zeros(mBgr.rows(), mBgr.cols(), CvType.CV_8UC1)

    val list = mutableListOf<Mat>()

    list.add(zero)

    list.add(zero)

    list.add(mChannelR)

    val result = Mat()

    Core.merge(list, result)

    showMat(result)

    result.release()

}



private fun showBRZero(a) {

    val zero = Mat.zeros(mBgr.rows(), mBgr.cols(), CvType.CV_8UC1)

    val list = mutableListOf<Mat>()

    list.add(zero)

    list.add(mChannelG)

    list.add(zero)

    val result = Mat()

    Core.merge(list, result)

    showMat(result)

    result.release()

}



private fun showGRZero(a) {

    val zero = Mat.zeros(mBgr.rows(), mBgr.cols(), CvType.CV_8UC1)

    val list = mutableListOf<Mat>()

    list.add(mChannelB)

    list.add(zero)

    list.add(zero)

    val result = Mat()

    Core.merge(list, result)

    showMat(result)

    result.release()

}



private fun showSwitchBR(a) {

    val zero = Mat.zeros(mBgr.rows(), mBgr.cols(), CvType.CV_8UC1)

    val list = mutableListOf<Mat>()

    list.add(mChannelR)

    list.add(mChannelG)

    list.add(mChannelB)

    val result = Mat()

    Core.merge(list, result)

    showMat(result)

    result.release()

}

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The results of


The source code

Github.com/onlyloveyd/…


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