How to use opencv of Android to realize multi-channel separation and merge
In this article Xiaobian for you to introduce in detail "how to use Android's opencv to achieve multi-channel separation and merge", the content is detailed, the steps are clear, and the details are handled properly. I hope that this article "how to use Android's opencv to achieve multi-channel separation and merger" can help you solve your doubts.
Multichannel separation
APIpublic static void split (Mat m, List mv)
Parameter one: M, the multi-channel image to be separated
Parameter 2: mv, the separated single-channel image
Operate 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 () Core.split (mBgr, imgList) mChannelB = imgList [0] mChannelG = imgList [1] mChannelR = imgList [2]} Channel merge
APIpublic static void merge (List mv, Mat dst)
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 merged output image has the same size and data type as mv [0], and the number of channels is equal to the sum of the channels of all input images.
Operation private fun showBGZero () {val zero = Mat.zeros (mBgr.rows (), mBgr.cols (), CvType.CV_8UC1) val list = mutableListOf () list.add (zero) list.add (zero) list.add (mChannelR) val result = Mat () Core.merge (list, result) showMat (result) result.release ()} private fun showBRZero () {val zero = Mat.zeros (mBgr.rows (), mBgr.cols () CvType.CV_8UC1) val list = mutableListOf () list.add (zero) list.add (mChannelG) list.add (zero) val result = Mat () Core.merge (list, result) showMat (result) result.release ()} private fun showGRZero () {val zero = Mat.zeros (mBgr.rows (), mBgr.cols () CvType.CV_8UC1) val list = mutableListOf () list.add (mChannelB) list.add (zero) list.add (zero) val result = Mat () Core.merge (list, result) showMat (result) result.release ()} private fun showSwitchBR () {val zero = Mat.zeros (mBgr.rows (), mBgr.cols () CvType.CV_8UC1) val list = mutableListOf () list.add (mChannelR) list.add (mChannelG) list.add (mChannelB) val result = Mat () Core.merge (list, result) showMat (result) result.release ()} result
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