我从这里做了一些改进。在这里测试和工作SerializationUtils类
public static String matToJson(Mat mat){ JsonObject obj = new JsonObject(); if(mat.isContinuous()){ int cols = mat.cols(); int rows = mat.rows(); int elemSize = (int) mat.elemSize(); int type = mat.type(); obj.addProperty("rows", rows); obj.addProperty("cols", cols); obj.addProperty("type", type); // We cannot set binary data to a json object, so: // Encoding data byte array to base64. String dataString; if( type == CvType.CV_32S || type == CvType.CV_32SC2 || type == CvType.CV_32SC3 || type == CvType.CV_16S) { int[] data = new int[cols * rows * elemSize]; mat.get(0, 0, data); dataString = new String(base64.enprebase64(SerializationUtils.toByteArray(data))); } else if( type == CvType.CV_32F || type == CvType.CV_32FC2) { float[] data = new float[cols * rows * elemSize]; mat.get(0, 0, data); dataString = new String(base64.enprebase64(SerializationUtils.toByteArray(data))); } else if( type == CvType.CV_64F || type == CvType.CV_64FC2) { double[] data = new double[cols * rows * elemSize]; mat.get(0, 0, data); dataString = new String(base64.enprebase64(SerializationUtils.toByteArray(data))); } else if( type == CvType.CV_8U ) { byte[] data = new byte[cols * rows * elemSize]; mat.get(0, 0, data); dataString = new String(base64.enprebase64(data)); } else { throw new UnsupportedOperationException("unknown type"); } obj.addProperty("data", dataString); Gson gson = new Gson(); String json = gson.toJson(obj); return json; } else { System.out.println("Mat not continuous."); } return "{}";}public static Mat matFromJson(String json){ JsonParser parser = new JsonParser(); JsonObject JsonObject = parser.parse(json).getAsJsonObject(); int rows = JsonObject.get("rows").getAsInt(); int cols = JsonObject.get("cols").getAsInt(); int type = JsonObject.get("type").getAsInt(); Mat mat = new Mat(rows, cols, type); String dataString = JsonObject.get("data").getAsString(); if( type == CvType.CV_32S || type == CvType.CV_32SC2 || type == CvType.CV_32SC3 || type == CvType.CV_16S) { int[] data = SerializationUtils.toIntArray(base64.deprebase64(dataString.getBytes())); mat.put(0, 0, data); } else if( type == CvType.CV_32F || type == CvType.CV_32FC2) { float[] data = SerializationUtils.toFloatArray(base64.deprebase64(dataString.getBytes())); mat.put(0, 0, data); } else if( type == CvType.CV_64F || type == CvType.CV_64FC2) { double[] data = SerializationUtils.toDoubleArray(base64.deprebase64(dataString.getBytes())); mat.put(0, 0, data); } else if( type == CvType.CV_8U ) { byte[] data = base64.deprebase64(dataString.getBytes()); mat.put(0, 0, data); } else { throw new UnsupportedOperationException("unknown type"); } return mat;}
