The cvtColor() method of the Imgproc class can convert the color of the image from one to another. This method accepts three parameters:
#src − Matrix object representing the source image.
dst − Matrix object representing the target image.
#code − An integer value representing the color of the target image.
To convert an HSV image to RGB, you need to pass Imgproc.COLOR_HSV2RGB as the third parameter to the method.
Example
import org.opencv.core.Core; import org.opencv.core.Mat; import org.opencv.imgcodecs.Imgcodecs; import org.opencv.imgproc.Imgproc; public class HSV2RGB { public static void main(String args[]) throws Exception { //Loading the OpenCV core library System.loadLibrary( Core.NATIVE_LIBRARY_NAME ); //Reading the image Mat src = Imgcodecs.imread("D:\images\hsvimage.jpg"); //Creating the empty destination matrix Mat dst = new Mat(); //Converting the image to gray scale Imgproc.cvtColor(src, dst, Imgproc.COLOR_HSV2RGB); //Instantiating the Imagecodecs class Imgcodecs imageCodecs = new Imgcodecs(); //Writing the image imageCodecs.imwrite("D:\images\hsv2rgb.jpg", dst); System.out.println("Image Saved"); } }
Enter
output
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