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Added JavaCV

This commit is contained in:
Artur Kmieckowiak 2020-02-14 04:20:58 +01:00
parent e7737c5f9d
commit 14a26730cd
4 changed files with 178 additions and 29 deletions
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3
build.gradle
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@ -24,6 +24,9 @@ dependencies {
implementation 'org.springframework.boot:spring-boot-starter-web'
implementation 'org.springframework.boot:spring-boot-starter-security'
implementation 'com.auth0:java-jwt:3.4.0'
implementation 'com.google.zxing:core:3.3.0'
implementation 'com.google.zxing:javase:3.3.0'
compile group: 'org.bytedeco', name: 'javacv-platform', version: '1.5.2'
// implementation name: 'opencv-420'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
testImplementation('org.junit.jupiter:junit-jupiter-api')

3
src/main/java/pl/edu/amu/wmi/bookapi/security/WebSecurity.java
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@ -34,7 +34,8 @@ public class WebSecurity extends WebSecurityConfigurerAdapter {
// .antMatchers(HttpMethod.PATCH, "/api/books/*").permitAll()
.antMatchers(HttpMethod.POST,
SIGN_UP_URL,
LOG_IN_URL).permitAll()
LOG_IN_URL,
"/api/books/image").permitAll()
.anyRequest().authenticated()
.and()
.addFilter(

200
src/main/java/pl/edu/amu/wmi/bookapi/service/ImageProcessingService.java
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@ -1,9 +1,50 @@
package pl.edu.amu.wmi.bookapi.service;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.ChecksumException;
import com.google.zxing.FormatException;
import com.google.zxing.LuminanceSource;
import com.google.zxing.NotFoundException;
import com.google.zxing.Reader;
import com.google.zxing.Result;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.oned.EAN13Reader;
import org.bytedeco.opencv.global.opencv_imgproc;
import org.bytedeco.opencv.opencv_core.Mat;
import org.bytedeco.opencv.opencv_core.MatVector;
import org.bytedeco.opencv.opencv_core.Size;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.awt.image.DataBuffer;
import java.awt.image.DataBufferByte;
import java.awt.image.DataBufferInt;
import java.io.File;
import java.io.IOException;
import static org.bytedeco.opencv.global.opencv_core.CV_32F;
import static org.bytedeco.opencv.global.opencv_core.CV_8UC3;
import static org.bytedeco.opencv.global.opencv_core.convertScaleAbs;
import static org.bytedeco.opencv.global.opencv_core.subtract;
import static org.bytedeco.opencv.global.opencv_imgcodecs.imwrite;
import static org.bytedeco.opencv.global.opencv_imgproc.CHAIN_APPROX_SIMPLE;
import static org.bytedeco.opencv.global.opencv_imgproc.COLOR_BGR2GRAY;
import static org.bytedeco.opencv.global.opencv_imgproc.MORPH_CLOSE;
import static org.bytedeco.opencv.global.opencv_imgproc.MORPH_RECT;
import static org.bytedeco.opencv.global.opencv_imgproc.RETR_EXTERNAL;
import static org.bytedeco.opencv.global.opencv_imgproc.Sobel;
import static org.bytedeco.opencv.global.opencv_imgproc.THRESH_BINARY;
import static org.bytedeco.opencv.global.opencv_imgproc.blur;
import static org.bytedeco.opencv.global.opencv_imgproc.cvtColor;
import static org.bytedeco.opencv.global.opencv_imgproc.findContours;
import static org.bytedeco.opencv.global.opencv_imgproc.getStructuringElement;
import static org.bytedeco.opencv.global.opencv_imgproc.morphologyEx;
import static org.bytedeco.opencv.global.opencv_imgproc.threshold;
@Service
public class ImageProcessingService {
@ -12,35 +53,140 @@ public class ImageProcessingService {
}
public String getDecodedEan(MultipartFile imageFile) throws Exception {
checkIfImageContainsBarcode(imageFile);
return "";
//
// String fileId = UUID.randomUUID().toString();
// Path path = Path.of(new File(".").getCanonicalPath());
//
// byte[] starting = imageFile.getBytes();
//
// saveImg(starting, path, fileId, 1);
//
// Mat mat = Imgcodecs.imdecode(new MatOfByte(starting), Imgcodecs.IMREAD_GRAYSCALE);
//
// Mat gray = new Mat();
// Imgproc.cvtColor(mat, gray, COLOR_BGR2GRAY);
//
// byte[] grayed = mat2byteArr(gray);
//
// saveImg(grayed, path, fileId, 2);
//
// return "";
return getBarcode(imageFile);
}
// private byte[] mat2byteArr(Mat mat) {
// byte[] bytes = new byte[0];
// mat.get(0, 0, bytes);
// return bytes;
// }
private String getBarcode(MultipartFile imageFile) throws IOException {
Reader reader = new EAN13Reader();
BufferedImage img = ImageIO.read(imageFile.getInputStream());
LuminanceSource source = new BufferedImageLuminanceSource(img);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
try {
Result result = reader.decode(bitmap);
return result.getText();
} catch (NotFoundException | FormatException | ChecksumException e) {
e.printStackTrace();
return null;
}
}
private void checkIfImageContainsBarcode(MultipartFile imageFile) throws IOException{
BufferedImage img = ImageIO.read(imageFile.getInputStream());
File outputfile = new File("start.jpg");
ImageIO.write(img, "jpg", outputfile);
Mat src = matify(img);
Mat dst = new Mat();
cvtColor(src, dst, COLOR_BGR2GRAY);
imwrite("./before.png", src);
imwrite("./test.png", dst);
Mat sobel = new Mat();
Mat matScharX = new Mat();
Mat matScharY = new Mat();
// Scharr(dst, matScharX, CV_32F, 1, 0, 1.0d, -1.0, 0);
// Scharr(dst, matScharX, CV_32F, 0, 1, 1.0d, -1.0, 0);
Sobel(dst, matScharX, CV_32F, 1, 0, -1, 1.0, 1.0, 1);
Sobel(dst, matScharY, CV_32F, 0, 1, -1, 1.0, 1.0, 1);
subtract(matScharX, matScharY);
Mat conv = new Mat();
convertScaleAbs(matScharX, conv);
imwrite("./scharr.png", conv);
Mat blurDestination = new Mat();
blur(conv, blurDestination, new Size(9,9));
Mat thresholdDestination = new Mat();
threshold(blurDestination, thresholdDestination, 230d, 255d, THRESH_BINARY);
imwrite("./threshold.png", thresholdDestination);
Mat kernel = getStructuringElement(MORPH_RECT, new Size(21, 7));
Mat morph = new Mat();
morphologyEx(thresholdDestination, morph, MORPH_CLOSE, kernel);
imwrite("./morph.png", morph);
//
// private void saveImg(byte[] bytes, Path path, String imageName, Integer version) throws IOException {
// Files.write(Path.of(path.toString(), "/" + imageName + "__v" + version + ".png"), bytes);
// }
// Mat erode = new Mat();
// imwrite("./erodeBefore.png", morph);
// opencv_imgproc.erode(morph, erode, new Mat());
// for(int i =0 ; i < 3 ; i++) {
// opencv_imgproc.erode(erode, erode, new Mat());
// }
//
// Mat dilate = new Mat();
// opencv_imgproc.dilate(morph, dilate, new Mat());
// for(int i =0 ; i < 3 ; i++) {
// opencv_imgproc.erode(dilate, dilate, new Mat());
// }
imwrite("./erodeAfter.png", morph);
MatVector contour = new MatVector();
findContours(morph, contour ,RETR_EXTERNAL, CHAIN_APPROX_SIMPLE);
int count = 0;
for (int i = 0 ; i < contour.size(); i++){
double minContourArea = (double) img.getHeight() * img.getWidth() * 0.05;
System.out.println("Min contour " + minContourArea + "current contour " + opencv_imgproc.contourArea(contour.get(i)));
if(opencv_imgproc.contourArea(contour.get(i)) > minContourArea) {
System.out.println("Contour " + i);
System.out.println(opencv_imgproc.contourArea(contour.get(i)));
count++;
}
}
System.out.println("No of contours higher than threshold");
System.out.println(count);
System.out.println("Total contours");
System.out.println(contour.size());
}
public Mat matify(BufferedImage sourceImg) {
System.out.println("Matify");
long millis = System.currentTimeMillis();
DataBuffer dataBuffer = sourceImg.getRaster().getDataBuffer();
byte[] imgPixels = null;
Mat imgMat = null;
int width = sourceImg.getWidth();
int height = sourceImg.getHeight();
if(dataBuffer instanceof DataBufferByte) {
imgPixels = ((DataBufferByte)dataBuffer).getData();
}
if(dataBuffer instanceof DataBufferInt) {
System.out.println("Matify1");
int byteSize = width * height;
imgPixels = new byte[byteSize*3];
int[] imgIntegerPixels = ((DataBufferInt)dataBuffer).getData();
System.out.println("Matify2");
for(int p = 0; p < byteSize; p++) {
imgPixels[p*3 + 0] = (byte) ((imgIntegerPixels[p] & 0x00FF0000) >> 16);
imgPixels[p*3 + 1] = (byte) ((imgIntegerPixels[p] & 0x0000FF00) >> 8);
imgPixels[p*3 + 2] = (byte) (imgIntegerPixels[p] & 0x000000FF);
}
System.out.println("Matify");
}
if(imgPixels != null) {
imgMat = new Mat(height, width, CV_8UC3);
imgMat.data().put(imgPixels);
}
Mat mat = new Mat();
System.out.println("matify exec millis: " + (System.currentTimeMillis() - millis));
return imgMat;
}
}

1
src/test/java/pl/edu/amu/wmi/bookapi/BookapiApplicationTests.java
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@ -16,5 +16,4 @@ class BookapiApplicationTests {
void contextLoads() {
System.out.println(mongoTemplate.findAll(UserDocument.class));
}
}