修复 打包项目时无法运行的问题

新增 images.matchTemplate()找图返回多个位置
新增 找图示例
This commit is contained in:
hyb1996 2018-12-16 10:24:57 +08:00
parent 6f66956751
commit 72d8077142
16 changed files with 346 additions and 97 deletions

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@ -0,0 +1,11 @@
var superMario = images.read("./super_mario.jpg");
var block = images.read("./block.png");
var result = images.matchTemplate(superMario, block, {
threshold: 0.8
}).matches;
toastLog(result);
superMario.recycle();
block.recycle();

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@ -0,0 +1,23 @@
var superMario = images.read("./super_mario.jpg");
var block = images.read("./block.png");
var points = images.matchTemplate(superMario, block, {
threshold: 0.8
}).points;
toastLog(points);
var canvas = new Canvas(superMario);
var paint = new Paint();
paint.setColor(colors.parseColor("#2196F3"));
points.forEach(point => {
canvas.drawRect(point.x, point.y, point.x + block.width, point.y + block.height, paint);
});
var image = canvas.toImage();
images.save(image, "/sdcard/tmp.png");
app.viewFile("/sdcard/tmp.png");
superMario.recycle();
block.recycle();
image.recycle();

View File

@ -0,0 +1,8 @@
var superMario = images.read("./super_mario.jpg");
var mario = images.read("./mario.png");
var point = findImage(superMario, mario);
toastLog(point);
superMario.recycle();
mario.recycle();

View File

@ -26,6 +26,7 @@ import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.concurrent.Callable;
import java.util.regex.Pattern;
import pxb.android.StringItem;
import pxb.android.axml.AxmlWriter;
@ -201,7 +202,6 @@ public class ApkBuilder {
private void encrypt(File toDir, File file) throws IOException {
FileOutputStream fos = new FileOutputStream(new File(toDir, file.getName()));
EncryptedScriptFileHeader.INSTANCE.writeHeader(fos, (short) new JavaScriptFileSource(file).getExecutionMode());
encrypt(fos, file);
}

View File

@ -58,6 +58,7 @@ public abstract class Database<M extends BaseModel> {
public Observable<Integer> update(M model) {
return exec(() -> {
ContentValues values = asContentValues(model);
values.put("id", model.getId());
int update = mWritableSQLiteDatabase.update(mTable, values, "id = ?", arg(model.getId()));
if (update >= 1) {
mModelChange.onNext(new ModelChange<>(model, ModelChange.UPDATE));

View File

@ -21,7 +21,6 @@ public class TimedTaskDatabase extends Database<TimedTask> {
@Override
protected ContentValues asContentValues(TimedTask model) {
ContentValues values = new ContentValues();
values.put("id", model.getId());
values.put("time", model.getTimeFlag());
values.put("scheduled", model.isScheduled());
values.put("delay", model.getDelay());

View File

@ -1,26 +1,123 @@
module.exports = function (runtime, scope) {
const ResultAdapter = require("result_adapter");
function images(){
var MatchingResult = (function () {
var comparators = {
"left": (l, r) => l.point.x - r.point.x,
"top": (l, r) => l.point.y - r.point.y,
"right": (l, r) => r.point.x - l.point.x,
"bottom": (l, r) => r.point.y - l.point.y
}
function MatchingResult(list) {
if (Array.isArray(list)) {
this.matches = list;
} else {
this.matches = runtime.bridges.bridges.toArray(list);
}
this.__defineGetter__("points", () => {
if (typeof (this.__points__) == 'undefined') {
this.__points__ = this.matches.map(m => m.point);
}
return this.__points__;
});
}
MatchingResult.prototype.first = function () {
if (this.matches.length == 0) {
return null;
}
return this.matches[0];
}
MatchingResult.prototype.last = function () {
if (this.matches.length == 0) {
return null;
}
return this.matches[this.matches.length - 1];
}
MatchingResult.prototype.findMax = function (cmp) {
if (this.matches.length == 0) {
return null;
}
var target = this.matches[0];
this.matches.forEach(m => {
if (cmp(target, m) > 0) {
target = m;
}
});
return target;
}
MatchingResult.prototype.leftmost = function () {
return this.findMax(comparators.left);
}
MatchingResult.prototype.topmost = function () {
return this.findMax(comparators.top);
}
MatchingResult.prototype.rightmost = function () {
return this.findMax(comparators.right);
}
MatchingResult.prototype.bottommost = function () {
return this.findMax(comparators.bottom);
}
MatchingResult.prototype.worst = function () {
return this.findMax((l, r) => l.similarity - r.similarity);
}
MatchingResult.prototype.best = function () {
return this.findMax((l, r) => r.similarity - l.similarity);
}
MatchingResult.prototype.sortBy = function(cmp) {
var comparatorFn = null;
if(typeof(cmp) == 'string'){
cmp.split("-").forEach(direction => {
var buildInFn = comparators[direction];
if(!buildInFn){
throw new Error("unknown direction '" + direction + "' in '" + cmp +"'");
}
(function(fn){
if(comparatorFn == null){
comparatorFn = fn;
}else{
comparatorFn = (function(comparatorFn, fn){
return function(l, r){
var cmpValue = comparatorFn(l, r);
if(cmpValue == 0){
return fn(l, r);
}
return cmpValue;
}
})(comparatorFn, fn);
}
})(buildInFn);
});
}else{
comparatorFn = cmp;
}
var clone = this.matches.slice();
clone.sort(comparatorFn);
return new MatchingResult(clone);
}
return MatchingResult;
})();
function images() {
}
if(android.os.Build.VERSION.SDK_INT >= 21){
if (android.os.Build.VERSION.SDK_INT >= 21) {
util.__assignFunctions__(runtime.images, images, ['captureScreen', 'read', 'copy', 'load', 'clip', 'pixel'])
}
images.opencvImporter = JavaImporter(
org.opencv.core.Point,
org.opencv.core.Point3,
org.opencv.core.Rect,
org.opencv.core.Algorithm,
org.opencv.core.Scalar,
org.opencv.core.Size,
org.opencv.core.Core,
org.opencv.core.CvException,
org.opencv.core.CvType,
org.opencv.core.TermCriteria,
org.opencv.core.RotatedRect,
org.opencv.core.Range,
org.opencv.imgproc.Imgproc,
com.stardust.autojs.core.opencv
images.opencvImporter = JavaImporter(
org.opencv.core.Point,
org.opencv.core.Point3,
org.opencv.core.Rect,
org.opencv.core.Algorithm,
org.opencv.core.Scalar,
org.opencv.core.Size,
org.opencv.core.Core,
org.opencv.core.CvException,
org.opencv.core.CvType,
org.opencv.core.TermCriteria,
org.opencv.core.RotatedRect,
org.opencv.core.Range,
org.opencv.imgproc.Imgproc,
com.stardust.autojs.core.opencv
);
with (images.opencvImporter) {
const defaultColorThreshold = 4;
@ -56,13 +153,13 @@ module.exports = function (runtime, scope) {
var colorFinder = javaImages.colorFinder;
images.requestScreenCapture = function(landscape) {
images.requestScreenCapture = function (landscape) {
let ScreenCapturer = com.stardust.autojs.core.image.capture.ScreenCapturer;
var orientation = ScreenCapturer.ORIENTATION_AUTO;
if(landscape === true){
if (landscape === true) {
orientation = ScreenCapturer.ORIENTATION_LANDSCAPE;
}
if(landscape === false){
if (landscape === false) {
orientation = ScreenCapturer.ORIENTATION_PORTRAIT;
}
return ResultAdapter.wait(javaImages.requestScreenCapture(orientation));
@ -105,7 +202,7 @@ module.exports = function (runtime, scope) {
colors.blue(color) - threshold, colors.alpha(color));
ub = new Scalar(colors.red(color) + threshold, colors.green(color) + threshold,
colors.blue(color) + threshold, colors.alpha(color));
}else{
} else {
throw new TypeError('lowerBound = ' + lowerBound, + 'upperBound = ' + upperBound);
}
}
@ -115,7 +212,7 @@ module.exports = function (runtime, scope) {
}
images.adaptiveThreshold = function(img, maxValue, adaptiveMethod, thresholdType, blockSize, C){
images.adaptiveThreshold = function (img, maxValue, adaptiveMethod, thresholdType, blockSize, C) {
initIfNeeded();
var mat = new Mat();
adaptiveMethod = Imgproc["ADAPTIVE_THRESH_" + adaptiveMethod];
@ -168,13 +265,13 @@ module.exports = function (runtime, scope) {
return images.matToImage(mat);
}
images.findCircles = function(grayImg, options) {
images.findCircles = function (grayImg, options) {
initIfNeeded();
options = options || {};
var mat = options.region == undefined ? grayImg.mat : new Mat(grayImg.mat, buildRegion(options.region, grayImg));
var resultMat = new Mat()
var dp = options.dp == undefined ? 1 : options.dp;
var minDst = options.minDst == undefined ? grayImg.height / 8 : options.minDst;
var minDst = options.minDst == undefined ? grayImg.height / 8 : options.minDst;
var param1 = options.param1 == undefined ? 100 : options.param1;
var param2 = options.param2 == undefined ? 100 : options.param2;
var minRadius = options.minRadius == undefined ? 0 : options.minRadius;
@ -191,14 +288,14 @@ module.exports = function (runtime, scope) {
});
}
}
if(options.region != undefined){
if (options.region != undefined) {
mat.release();
}
resultMat.release();
return result;
}
images.resize = function(img, size, interpolation) {
images.resize = function (img, size, interpolation) {
initIfNeeded();
var mat = new Mat();
interpolation = Imgproc["INTER_" + (interpolation || "LINEAR")];
@ -206,7 +303,7 @@ module.exports = function (runtime, scope) {
return images.matToImage(mat);
}
images.scale = function(img, fx, fy, interpolation) {
images.scale = function (img, fx, fy, interpolation) {
initIfNeeded();
var mat = new Mat();
interpolation = Imgproc["INTER_" + (interpolation || "LINEAR")];
@ -214,18 +311,18 @@ module.exports = function (runtime, scope) {
return images.matToImage(mat);
}
images.rotate = function(img, degree, x, y) {
images.rotate = function (img, degree, x, y) {
initIfNeeded();
if(x == undefined){
if (x == undefined) {
x = img.width / 2;
}
if(y == undefined){
if (y == undefined) {
y = img.height / 2;
}
return javaImages.rotate(img, x, y, degree);
}
images.concat = function(img1, img2, direction, rect1, rect2) {
images.concat = function (img1, img2, direction, rect1, rect2) {
initIfNeeded();
direction = direction || "right";
rect1 = buildRegion(rect1, img1);
@ -314,7 +411,7 @@ module.exports = function (runtime, scope) {
if (typeof (options.level) == 'number') {
maxLevel = options.level;
}
var weakThreshold = options.weakThreshold || 0.7;
var weakThreshold = options.weakThreshold || 0.6;
if (options.region) {
return javaImages.findImage(img, template, weakThreshold, threshold, buildRegion(options.region, img), maxLevel);
} else {
@ -322,6 +419,27 @@ module.exports = function (runtime, scope) {
}
}
images.matchTemplate = function (img, template, options) {
initIfNeeded();
options = options || {};
var threshold = options.threshold || 0.9;
var maxLevel = -1;
if (typeof (options.level) == 'number') {
maxLevel = options.level;
}
var max = options.max || 5;
var weakThreshold = options.weakThreshold || 0.6;
var result;
if (options.region) {
result = javaImages.matchTemplate(img, template, weakThreshold, threshold, buildRegion(options.region, img), maxLevel, max);
} else {
result = javaImages.matchTemplate(img, template, weakThreshold, threshold, null, maxLevel, max);
}
return new MatchingResult(result);
}
images.findImageInRegion = function (img, template, x, y, width, height, threshold) {
return images.findImage(img, template, {
region: [x, y, width, height],
@ -364,11 +482,15 @@ module.exports = function (runtime, scope) {
};
}
images.matToImage = function(img){
images.matToImage = function (img) {
initIfNeeded();
return Image.ofMat(img);
}
function getColorDetector(color, algorithm, threshold) {
switch (algorithm) {
case "rgb":
@ -395,7 +517,7 @@ module.exports = function (runtime, scope) {
}
function buildRegion(region, img) {
if(region == undefined){
if (region == undefined) {
region = [];
}
var x = region[0] === undefined ? 0 : region[0];
@ -403,6 +525,9 @@ module.exports = function (runtime, scope) {
var width = region[2] === undefined ? img.getWidth() - x : region[2];
var height = region[3] === undefined ? (img.getHeight() - y) : region[3];
var r = new org.opencv.core.Rect(x, y, width, height);
if(x < 0 || y < 0 || x + width > img.width || y + height > img.height) {
throw new Error("out of region: region = [" + [x, y, width, height] + "], image.size = [" + [img.width, img.height] + "]");
}
return r;
}
@ -412,7 +537,7 @@ module.exports = function (runtime, scope) {
}
return color;
}
function newSize(size) {
if (!Array.isArray(size)) {
size = [size, size];
@ -423,14 +548,14 @@ module.exports = function (runtime, scope) {
return new Size(size[0], size[1]);
}
function initIfNeeded(){
function initIfNeeded() {
javaImages.initOpenCvIfNeeded();
}
scope.__asGlobal__(images, ['requestScreenCapture', 'captureScreen', 'findImage', 'findImageInRegion', 'findColor', 'findColorInRegion', 'findColorEquals', 'findMultiColors']);
scope.colors = colors;
return images;
}
}

View File

@ -316,6 +316,7 @@ public class ScriptCanvas {
mCanvas.drawOval(oval, paint);
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
public void drawOval(float left, float top, float right, float bottom, @NonNull Paint paint) {
mCanvas.drawOval(left, top, right, bottom, paint);
}

View File

@ -56,6 +56,7 @@ public class ColorFinder {
}
public Point[] findAllPointsForColor(ImageWrapper image, int color, int threshold, Rect rect) {
MatOfPoint matOfPoint = findColorInner(image, color, threshold, rect);
if (matOfPoint == null) {
return new Point[0];

View File

@ -1,6 +1,5 @@
package com.stardust.autojs.core.image;
import android.util.Pair;
import android.util.TimingLogger;
import com.stardust.autojs.core.opencv.OpenCVHelper;
@ -8,12 +7,20 @@ import com.stardust.util.Nath;
import org.opencv.core.Core;
import org.opencv.core.CvType;
import com.stardust.autojs.core.opencv.Mat;
import org.opencv.core.Point;
import org.opencv.core.Rect;
import org.opencv.core.Scalar;
import org.opencv.core.Size;
import org.opencv.imgproc.Imgproc;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
/**
* Created by Stardust on 2017/11/25.
@ -21,13 +28,35 @@ import org.opencv.imgproc.Imgproc;
public class TemplateMatching {
public static class Match {
public final Point point;
public final double similarity;
public Match(Point point, double similarity) {
this.point = point;
this.similarity = similarity;
}
@Override
public String toString() {
return "Match{" +
"point=" + point +
", similarity=" + similarity +
'}';
}
}
private static final String LOG_TAG = "TemplateMatching";
public static final int MAX_LEVEL_AUTO = -1;
public static final int MATCHING_METHOD_DEFAULT = Imgproc.TM_CCOEFF_NORMED;
public static Point fastTemplateMatching(Mat img, Mat template, float threshold) {
return fastTemplateMatching(img, template, MATCHING_METHOD_DEFAULT, 0.75f, threshold, MAX_LEVEL_AUTO);
public static Point fastTemplateMatching(Mat img, Mat template, int matchMethod, float weakThreshold, float strictThreshold, int maxLevel) {
List<Match> result = fastTemplateMatching(img, template, matchMethod, weakThreshold, strictThreshold, maxLevel, 1);
if (result.isEmpty()) {
return null;
}
return result.get(0).point;
}
/**
@ -41,7 +70,7 @@ public class TemplateMatching {
* @param maxLevel 图像金字塔的层数
* @return
*/
public static Point fastTemplateMatching(Mat img, Mat template, int matchMethod, float weakThreshold, float strictThreshold, int maxLevel) {
public static List<Match> fastTemplateMatching(Mat img, Mat template, int matchMethod, float weakThreshold, float strictThreshold, int maxLevel, int limit) {
TimingLogger logger = new TimingLogger(LOG_TAG, "fast_tm");
if (maxLevel == MAX_LEVEL_AUTO) {
//自动选取金字塔层数
@ -49,62 +78,64 @@ public class TemplateMatching {
logger.addSplit("selectPyramidLevel:" + maxLevel);
}
//保存每一轮匹配到模板图片在原图片的位置
Point p = null;
Mat matchResult = null;
double similarity = 0;
List<Match> finalMatchResult = new ArrayList<>();
List<Match> previousMatchResult = Collections.emptyList();
boolean isFirstMatching = true;
for (int level = maxLevel; level >= 0; level--) {
//放缩图片
// 放缩图片
List<Match> currentMatchResult = new ArrayList<>();
Mat src = getPyramidDownAtLevel(img, level);
Mat currentTemplate = getPyramidDownAtLevel(template, level);
//如果在上一轮中没有匹配到图片则考虑是否退出匹配
if (p == null) {
//如果不是第一次匹配并且不满足shouldContinueMatching的条件则直接退出匹配返回null
// 如果在上一轮中没有匹配到图片则考虑是否退出匹配
if (previousMatchResult.isEmpty()) {
// 如果不是第一次匹配并且不满足shouldContinueMatching的条件则直接退出匹配
if (!isFirstMatching && !shouldContinueMatching(level, maxLevel)) {
break;
}
Mat matchResult = matchTemplate(src, currentTemplate, matchMethod);
getBestMatched(matchResult, currentTemplate, matchMethod, weakThreshold, currentMatchResult, limit, null);
OpenCVHelper.release(matchResult);
matchResult = matchTemplate(src, currentTemplate, matchMethod);
Pair<Point, Double> bestMatched = getBestMatched(matchResult, matchMethod, weakThreshold);
p = bestMatched.first;
similarity = bestMatched.second;
} else {
//根据上一轮的匹配点计算本次匹配的区域
Rect r = getROI(p, src, currentTemplate);
OpenCVHelper.release(matchResult);
Mat m = new Mat(src, r);
matchResult = matchTemplate(m, currentTemplate, matchMethod);
OpenCVHelper.release(m);
Pair<Point, Double> bestMatched = getBestMatched(matchResult, matchMethod, weakThreshold);
//不满足弱阈值返回null
if (bestMatched.second < weakThreshold) {
// p = null;
// break;
for (Match match : previousMatchResult) {
// 根据上一轮的匹配点计算本次匹配的区域
Rect r = getROI(match.point, src, currentTemplate);
Mat m = new Mat(src, r);
Mat matchResult = matchTemplate(m, currentTemplate, matchMethod);
getBestMatched(matchResult, currentTemplate, matchMethod, weakThreshold, currentMatchResult, limit, r);
OpenCVHelper.release(m);
OpenCVHelper.release(matchResult);
}
p = bestMatched.first;
similarity = bestMatched.second;
p.x += r.x;
p.y += r.y;
}
if (src != img)
OpenCVHelper.release(src);
if (currentTemplate != template)
OpenCVHelper.release(currentTemplate);
//满足强阈值返回当前结果
if (similarity >= strictThreshold) {
pyrUp(p, level);
break;
logger.addSplit("level:" + level + ", result:" + previousMatchResult);
// 把满足强阈值的点找出来加到最终结果列表
if (!currentMatchResult.isEmpty()) {
Iterator<Match> iterator = currentMatchResult.iterator();
while (iterator.hasNext()) {
Match match = iterator.next();
if (match.similarity >= strictThreshold) {
pyrUp(match.point, level);
finalMatchResult.add(match);
iterator.remove();
}
}
// 如果所有结果都满足强阈值则退出循环返回最终结果
if (currentMatchResult.isEmpty()) {
break;
}
}
logger.addSplit("level:" + level + " point:" + p);
isFirstMatching = false;
previousMatchResult = currentMatchResult;
}
logger.addSplit("result:" + p);
logger.addSplit("result:" + finalMatchResult);
logger.dumpToLog();
OpenCVHelper.release(matchResult);
if (similarity < strictThreshold) {
return null;
}
return p;
return finalMatchResult;
}
@ -168,7 +199,7 @@ public class TemplateMatching {
}
public static Mat matchTemplate(Mat img, Mat temp, int match_method) {
private static Mat matchTemplate(Mat img, Mat temp, int match_method) {
int result_cols = img.cols() - temp.cols() + 1;
int result_rows = img.rows() - temp.rows() + 1;
Mat result = new Mat(result_rows, result_cols, CvType.CV_32FC1);
@ -176,10 +207,21 @@ public class TemplateMatching {
return result;
}
public static Pair<Point, Double> getBestMatched(Mat tmResult, int matchMethod, float threshold) {
private static void getBestMatched(Mat tmResult, Mat template, int matchMethod, float weakThreshold, List<Match> outResult, int limit, Rect rect) {
for (int i = 0; i < limit; i++) {
Match bestMatched = getBestMatched(tmResult, matchMethod, weakThreshold, rect);
if (bestMatched == null) {
break;
}
outResult.add(bestMatched);
Core.rectangle(tmResult, bestMatched.point,
new Point(bestMatched.point.x + template.cols(), bestMatched.point.y + template.rows()),
new Scalar(0, 255, 0), -1);
}
}
private static Match getBestMatched(Mat tmResult, int matchMethod, float weakThreshold, Rect rect) {
TimingLogger logger = new TimingLogger(LOG_TAG, "best_matched_point");
// FIXME: 2017/11/26 正交化?
// Core.normalize(tmResult, tmResult, 0, 1, Core.NORM_MINMAX, -1, new Mat());
Core.MinMaxLocResult mmr = Core.minMaxLoc(tmResult);
logger.addSplit("minMaxLoc");
double value;
@ -191,9 +233,15 @@ public class TemplateMatching {
pos = mmr.maxLoc;
value = mmr.maxVal;
}
if (value < weakThreshold) {
return null;
}
if (rect != null) {
pos.x += rect.x;
pos.y += rect.y;
}
logger.addSplit("value:" + value);
logger.dumpToLog();
return new Pair<>(pos, value);
return new Match(pos, value);
}

View File

@ -92,15 +92,12 @@ public class InjectableWebClient extends WebViewClient {
@JavascriptInterface
public String eval(final String script) {
result = null;
mWebView.post(new Runnable() {
@Override
public void run() {
Log.v(TAG, "ScriptBridge.eval: " + script);
result = mContext.evaluateString(mScriptable, script, "<eval-local>", 1, null);
Log.v(TAG, "ScriptBridge.eval = " + result);
synchronized (ScriptBridge.this) {
ScriptBridge.this.notify();
}
mWebView.post(() -> {
Log.v(TAG, "ScriptBridge.eval: " + script);
result = mContext.evaluateString(mScriptable, script, "<eval-local>", 1, null);
Log.v(TAG, "ScriptBridge.eval = " + result);
synchronized (ScriptBridge.this) {
ScriptBridge.this.notify();
}
});
synchronized (ScriptBridge.this) {

View File

@ -26,6 +26,10 @@ public class ScriptBridges {
mBridges = bridges;
}
public Bridges getBridges() {
return mBridges;
}
public Object callFunction(Object func, Object target, Object args) {
checkBridges();
return mBridges.call(func, target, args);

View File

@ -43,6 +43,9 @@ import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
/**
* Created by Stardust on 2017/5/20.
@ -303,6 +306,34 @@ public class Images {
return point;
}
public List<TemplateMatching.Match> matchTemplate(ImageWrapper image, ImageWrapper template, float weakThreshold, float threshold, Rect rect, int maxLevel, int limit) {
initOpenCvIfNeeded();
if (image == null)
throw new NullPointerException("image = null");
if (template == null)
throw new NullPointerException("template = null");
Mat src = image.getMat();
if (rect != null) {
src = new Mat(src, rect);
}
List<TemplateMatching.Match> result = TemplateMatching.fastTemplateMatching(src, template.getMat(), TemplateMatching.MATCHING_METHOD_DEFAULT,
weakThreshold, threshold, maxLevel, limit);
for (TemplateMatching.Match match : result) {
Point point = match.point;
if (rect != null) {
point.x += rect.x;
point.y += rect.y;
}
point.x = mScreenMetrics.scaleX((int) point.x);
point.y = mScreenMetrics.scaleX((int) point.y);
}
if (src != image.getMat()) {
OpenCVHelper.release(src);
}
Collections.sort(result, (l, r) -> Double.compare(r.similarity, l.similarity));
return result;
}
public Mat newMat() {
return new Mat();
}