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@ -1,12 +1,25 @@
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package org.jeecg.modules.ocr.utils;
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import com.alibaba.fastjson.JSONArray;
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import com.alibaba.fastjson.JSONObject;
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import javafx.util.Pair;
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import javax.imageio.ImageIO;
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import java.awt.*;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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import java.net.URL;
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import java.util.ArrayList;
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import java.util.List;
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import net.coobird.thumbnailator.Thumbnails;
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import org.apache.commons.lang.StringUtils;
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import java.awt.Graphics2D;
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import java.awt.Image;
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import java.awt.image.AffineTransformOp;
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import java.awt.*;
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import java.awt.image.BufferedImage;
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import java.io.*;
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import java.net.URL;
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import javax.imageio.ImageIO;
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/**
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@ -19,19 +32,35 @@ public class ImageUtils {
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当涉及到图像压缩时，Java中有几个可以使用的库，比如ImageIO、Thumbnails和Java Advanced Imaging API（JAI）。以下是一个使用ImageIO库来进行图片压缩的示例：
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*/
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public static void main(String[] args) throws FileNotFoundException {
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String sourceImagePath="C:\\Users\\Denim\\Desktop\\aabebdf71887c6c2707c65211cac2d3a.jpeg";
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String outputImagePath="C:\\Users\\Denim\\Desktop\\ds-aabebdf71887c6c2707c65211cac2d3a.jpeg";
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compressImage(sourceImagePath,outputImagePath,0.25f,0.25f);
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String sourceImagePath = "C:\\Users\\Denim\\Desktop\\aabebdf71887c6c2707c65211cac2d3a.jpeg";
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String outputImagePath = "C:\\Users\\Denim\\Desktop\\ds-aabebdf71887c6c2707c65211cac2d3a.jpeg";
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//compressImage(sourceImagePath,outputImagePath,0.25f,0.25f);
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List<Point> points = new ArrayList<>();
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points.add(new Point(9, 2924));
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points.add(new Point(107, 2924));
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points.add(new Point(107, 2959));
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points.add(new Point(9, 2959));
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List<Point> points2 = new ArrayList<>();
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points2.add(new Point(1282, 1576));
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points2.add(new Point(2764, 1594));
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points2.add(new Point(2763, 1671));
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points2.add(new Point(1281, 1653));
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List<List<Point>> pointList = new ArrayList<>();
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pointList.add(points);
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pointList.add(points2);
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drawDashedRectangleOnImages("http://47.103.213.109:8072/files/nfs/ocr/shared_directory/fdd50089f33e4b4391b8c88b6299735b/a86aff69fc3ff5397d038b4dbcde6165.jpeg", pointList, "C:\\Users\\Denim\\Desktop\\output_image.png");
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//drawDashedRectangleOnImage("http://47.103.213.109:8072/files/nfs/ocr/shared_directory/fdd50089f33e4b4391b8c88b6299735b/a86aff69fc3ff5397d038b4dbcde6165.jpeg", points, "C:\\Users\\Denim\\Desktop\\output_image.png");
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}
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/**
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* 等比例压缩
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*
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* @param sourceImagePath
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* @param outputImagePath
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* @param scale
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* @param quality
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*/
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public static void compressImage(String sourceImagePath, String outputImagePath,Float scale,Float quality){
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public static void compressImage(String sourceImagePath, String outputImagePath, Float scale, Float quality) {
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try {
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Thumbnails.of(new File(sourceImagePath))
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.scale(scale) //图片大小（长宽）压缩比例 从0-1，1表示原图
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@ -43,46 +72,109 @@ public class ImageUtils {
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}
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}
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// 获取图片的旋转角度信息
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private static int getOrientation(File imageFile) throws IOException {
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// TODO: 从图片的元数据中获取旋转角度信息，具体实现略
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// 这里假设返回的旋转角度为0
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return 90;
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}
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/**
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* 图片画线
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*
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* @param imagePath
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* @param points
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* @param outputPath
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*/
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public static void drawDashedRectangleOnImage(String imagePath, List<Point> points, String outputPath) {
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try {
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// Load the image
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BufferedImage image = ImageIO.read(new URL(imagePath));
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Graphics2D g2d = image.createGraphics();
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// 设置线的颜色
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g2d.setColor(new Color(255, 30, 30));
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// 定义虚线的样式
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float[] dash = {5.0f};
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BasicStroke dashed =
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new BasicStroke(3.0f,
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BasicStroke.CAP_BUTT,
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BasicStroke.JOIN_MITER,
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5.0f, dash, 0.0f);
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g2d.setStroke(dashed);
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// 创建一个多边形
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Polygon polygon = new Polygon();
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for (Point point : points) {
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polygon.addPoint(point.x, point.y);
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}
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// 画出多边形
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g2d.drawPolygon(polygon);
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// 根据旋转角度调整图片
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private static BufferedImage adjustOrientation(BufferedImage image, int orientation) {
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// TODO: 根据旋转角度调整图片，具体实现略
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// 这里假设不进行任何旋转调整
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return image;
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g2d.dispose();
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// Save the image
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ImageIO.write(image, "png", new File(outputPath));
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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// 压缩图片
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private static BufferedImage compressImage(BufferedImage image, int targetWidth, int targetHeight) {
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Image scaledImage = image.getScaledInstance(targetWidth, targetHeight, Image.SCALE_SMOOTH);
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BufferedImage compressedImage = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB);
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Graphics2D g2d = compressedImage.createGraphics();
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g2d.drawImage(scaledImage, 0, 0, null);
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g2d.dispose();
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return compressedImage;
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}
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public static void drawDashedRectangleOnImages(String imagePath, List<List<Point>> pointList, String outputPath) {
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try {
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// Load the image
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BufferedImage image = ImageIO.read(new URL(imagePath));
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for (List<Point> points : pointList) {
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Graphics2D g2d = image.createGraphics();
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// 设置线的颜色
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g2d.setColor(new Color(255, 30, 30));
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// 定义虚线的样式
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float[] dash = {5.0f};
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BasicStroke dashed =
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new BasicStroke(3.0f,
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BasicStroke.CAP_BUTT,
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BasicStroke.JOIN_MITER,
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5.0f, dash, 0.0f);
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g2d.setStroke(dashed);
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// 创建一个多边形
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Polygon polygon = new Polygon();
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for (Point point : points) {
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polygon.addPoint(point.x, point.y);
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}
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// 画出多边形
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g2d.drawPolygon(polygon);
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g2d.dispose();
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}
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// Save the image
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ImageIO.write(image, "png", new File(outputPath));
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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public static void folderCreate(String folder){
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if (StringUtils.isNotBlank(folder)) {
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File file =new File(folder);
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if (file.exists()) {
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if (file.isDirectory()) {/*System.out.println("dir exists");*/}
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else {
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System.out.println("the same name file exists, can not create dir");
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/**
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* 语义化结果中提取 图片点。
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*
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* @param semanticResult
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* @return
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*/
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public static List<List<Point>> semanticResultToPoints(JSONObject semanticResult) {
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List<List<Point>> lists = new ArrayList<>();
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for (String s : semanticResult.keySet()) {
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if ("ocr_res".equals(s) || "其他".equals(s)) {
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continue;
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}
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JSONArray jsonArray = semanticResult.getJSONArray(s);
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if (jsonArray.size() > 0) {
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List<JSONObject> jos = jsonArray.toJavaList(JSONObject.class);
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for (JSONObject jo : jos) {
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List<Point> points = new ArrayList<>();
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if (jo.containsKey("area")) {
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List<JSONObject> areas = jo.getJSONArray("area").toJavaList(JSONObject.class);
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for (JSONObject area : areas) {
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Integer[] doubles = area.values().toArray(new Integer[0]);
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points.add(new Point(doubles[0], doubles[1]));
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}
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}
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if (points.size() > 0) {
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lists.add(points);
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}
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}
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} else {
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//System.out.println("目录不存在，创建");
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file.mkdirs();
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}
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}
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return lists;
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}
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}
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