2025年Java结合OpenCV读取图片并遍历像素值[通俗易懂]

编程汇总 • 2025-04-04 12:27 • 阅读 19

1 项目结构

图1 图像读取及遍历项目结构

2 图像读取及遍历

code

package com.opencv;



import java.awt.Dimension;

import java.awt.image.BufferedImage;

import java.util.ArrayList;

import java.util.List;

import java.util.Vector;



import org.opencv.core.Core;

import org.opencv.core.Mat;

import org.opencv.videoio.VideoCapture;

import org.opencv.core.Scalar;

import org.opencv.imgcodecs.Imgcodecs;

public class VideoDemo { 

   



    public static void main(String[] args) { 

   

    	// 列表

        ArrayList array = new ArrayList();

        System.out.println("List: "+array);

        System.loadLibrary(Core.NATIVE_LIBRARY_NAME);

        Mat image = new Mat();

        // 图像读取

        image = Imgcodecs.imread("/home/xdq/xinPrj/java/opencvTwo/images/DVI_dis.png");

        // 图像行:高度height

        int img_rows = image.rows();

        // 图像列:宽度width

        int img_colums = image.cols();

        // 图像通道:维度dims/channels

        int img_channels = image.channels();

        System.out.println("image mat: " + image+"\n");

        System.out.println("image rows: "+image.rows()+"\n");

        System.out.println("image column: "+image.cols()+"\n");

        System.out.println("image channels: "+image.channels()+"\n");

        System.out.println("image value: "+image.get(0, 0).length+"\n");
	// 图像像素遍历,按通道输出

        for(int i=0;i
   

            for(int j=0;j
   

                for(int k=0; k
   

                    array.add(image.get(j,k)[i]);

                }

            }

            System.out.println("image value: "+array+"\n");

            // 列表清空

            array.clear();

        }

    }

}

Result

图2 遍历像素

传送门：https://github.com/xindaqi/java.git

2025年Java结合OpenCV读取图片并遍历像素值[通俗易懂]

1 项目结构

2 图像读取及遍历

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