Android opencv实现多通道分离与合并 Android基于opencv实现多通道分离与合并
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多通道分离
API
public static void split(Mat m, List<Mat> mv)
- 参数一:m,待分离的多通道图像
- 参数二:mv,分离后的单通道图像
操作
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] }
通道合并
API
public static void merge(List<Mat> mv, Mat dst)
- 参数一:mv,需要合并的图像数组,其中每个图像必须拥有相同的尺寸和数据类型
- 参数二:dst,合并后输出的图像,与mv[0]具有相同的尺寸和数据类型,通道数等于所有输入图像的通道数总和
操作
private fun showBGZero() { 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() { 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() { 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() { 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() }
结果
源码
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