/* * Copyright (C) The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.teapink.ocr_reader.utilities; import android.util.SparseArray; import com.google.android.gms.vision.Detector; import com.google.android.gms.vision.text.TextBlock; import com.teapink.ocr_reader.ui.camera.GraphicOverlay; /** * A very simple Processor which receives detected TextBlocks and adds them to the overlay * as OcrGraphics. */ public class OcrDetectorProcessor implements Detector.Processor<TextBlock> { private GraphicOverlay<OcrGraphic> mGraphicOverlay; public OcrDetectorProcessor(GraphicOverlay<OcrGraphic> ocrGraphicOverlay) { mGraphicOverlay = ocrGraphicOverlay; } /** * Called by the detector to deliver detection results. * If your application called for it, this could be a place to check for * equivalent detections by tracking TextBlocks that are similar in location and content from * previous frames, or reduce noise by eliminating TextBlocks that have not persisted through * multiple detections. */ @Override public void receiveDetections(Detector.Detections<TextBlock> detections) { mGraphicOverlay.clear(); SparseArray<TextBlock> items = detections.getDetectedItems(); for (int i = 0; i < items.size(); ++i) { TextBlock item = items.valueAt(i); OcrGraphic graphic = new OcrGraphic(mGraphicOverlay, item); mGraphicOverlay.add(graphic); } } /** * Frees the resources associated with this detection processor. */ @Override public void release() { mGraphicOverlay.clear(); } }