System Information

OpenCV version: 4.10.0
Operating System / Platform: Ubuntu 22.04
Compiler & compiler version: Java JDK 11

Detailed description

== OnnxModel from ==
https://github.com/opencv/opencv_zoo/blob/main/models/human_segmentation_pphumanseg/human_segmentation_pphumanseg_2023mar.onnx

== Working For ==
Dnn Backend : 2 (DNN_BACKEND_INFERENCE_ENGINE)
Dnn Target : 1 (DNN_TARGET_OPENCL)

== Error When ==
Dnn Backend : 2 (DNN_BACKEND_INFERENCE_ENGINE)
Dnn Target : 9 (DNN_TARGET_NPU)

Throw following Exception :

Unknown OpenVINO target:
'preferableTarget == DNN_TARGET_CPU || preferableTarget == DNN_TARGET_OPENCL || preferableTarget == DNN_TARGET_OPENCL_FP16 || preferableTarget == DNN_TARGET_MYRIAD || preferableTarget == DNN_TARGET_HDDL || preferableTarget == DNN_TARGET_FPGA'
where
'(int)preferableTarget' is 9
]

Steps to reproduce

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import org.opencv.core.Mat;
import org.opencv.dnn.Dnn;
import org.opencv.dnn.Net;

import hl.opencv.util.OpenCvUtil;

public class Test {

public static void main(String[] args)
{
	OpenCvUtil.initOpenCV();
	
	File fileOnnx = new File("./human_segmentation_pphumanseg_2023mar.onnx");
	Net net = Dnn.readNetFromONNX(fileOnnx.getAbsolutePath());
	net.setPreferableBackend(Dnn.DNN_BACKEND_INFERENCE_ENGINE);
	net.setPreferableTarget(Dnn.DNN_TARGET_NPU);
	
	// Run inference
	List<Mat>outputs = new ArrayList<>();
	net.forward(outputs, net.getUnconnectedOutLayersNames());

			
}

}

Issue submission checklist

• I report the issue, it's not a question
• I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution
• I updated to the latest OpenCV version and the issue is still there
• There is reproducer code and related data files (videos, images, onnx, etc)