first commit

src/main/java/it/moze/entity/vision/serde/MatToBase64JpegSerializer.java

@@ -0,0 +1,26 @@
+package it.moze.entity.vision.serde;
+
+import java.io.IOException;
+import java.util.Base64;
+
+import org.opencv.core.Mat;
+import org.opencv.core.MatOfByte;
+import org.opencv.imgcodecs.Imgcodecs;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.JsonSerializer;
+import com.fasterxml.jackson.databind.SerializerProvider;
+
+public class MatToBase64JpegSerializer extends JsonSerializer<Mat> {
+    @Override
+    public void serialize(Mat mat, JsonGenerator gen, SerializerProvider serializers) throws IOException {
+        if (mat == null) {
+            gen.writeNull();
+            return;
+        }
+        MatOfByte bytes = new MatOfByte();
+        Imgcodecs.imencode(".jpg", mat, bytes);
+        String base64Image = Base64.getEncoder().encodeToString(bytes.toArray());
+        gen.writeString(base64Image);
+    }
+}