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Chopped up into several classes, made into beans, etc for a bit of clarity

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git-svn-id: https://zxing.googlecode.com/svn/trunk@1760 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2011-05-08 14:48:34 +00:00
parent 379ee79702
commit b02b2b55b7
5 changed files with 565 additions and 393 deletions
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424
javase/src/com/google/zxing/client/j2se/CommandLineRunner.java
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@ -17,139 +17,25 @@
package com.google.zxing.client.j2se;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.NotFoundException;
import com.google.zxing.Result;
import com.google.zxing.ResultPoint;
import com.google.zxing.client.result.ParsedResult;
import com.google.zxing.client.result.ResultParser;
import com.google.zxing.common.BitArray;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.multi.GenericMultipleBarcodeReader;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.URI;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.Locale;
import java.util.Vector;
import javax.imageio.ImageIO;
/**
* This simple command line utility decodes files, directories of files, or URIs which are passed
* as arguments. By default it uses the normal decoding algorithms, but you can pass --try_harder
* to request that hint. The raw text of each barcode is printed, and when running against
* directories, summary statistics are also displayed.
*
* @author Sean Owen
* @author dswitkin@google.com (Daniel Switkin)
*/
public final class CommandLineRunner {
private static class Config {
public Hashtable<DecodeHintType, Object> hints = null;
public boolean tryHarder = false;
public boolean pureBarcode = false;
public boolean productsOnly = false;
public boolean dumpResults = false;
public boolean dumpBlackPoint = false;
public boolean multi = false;
public boolean brief = false;
public boolean recursive = false;
public int[] crop = null;
public int threads = 1;
}
// Represents the collection of all images files/URLs to decode.
private static class Inputs {
Vector<String> inputs = new Vector<String>(10);
int position = 0;
public synchronized void addInput(String pathOrUrl) {
inputs.add(pathOrUrl);
}
public synchronized String getNextInput() {
if (position < inputs.size()) {
String result = inputs.get(position);
position++;
return result;
} else {
return null;
}
}
public synchronized int getInputCount() {
return inputs.size();
}
}
// One of a pool of threads which pulls images off the Inputs queue and decodes them in parallel.
private static class DecodeThread extends Thread {
private int successful = 0;
@Override
public void run() {
while (true) {
String input = inputs.getNextInput();
if (input == null) {
break;
}
File inputFile = new File(input);
if (inputFile.exists()) {
try {
if (config.multi) {
Result[] results = decodeMulti(inputFile.toURI(), config.hints);
if (results != null) {
successful++;
if (config.dumpResults) {
dumpResultMulti(inputFile, results);
}
}
} else {
Result result = decode(inputFile.toURI(), config.hints);
if (result != null) {
successful++;
if (config.dumpResults) {
dumpResult(inputFile, result);
}
}
}
} catch (IOException e) {
}
} else {
try {
Result result = decode(new URI(input), config.hints);
if (result != null) {
successful++;
}
} catch (Exception e) {
}
}
}
}
public int getSuccessful() {
return successful;
}
}
private static Config config = new Config();
private static Inputs inputs = new Inputs();
private CommandLineRunner() {
}
@ -159,33 +45,37 @@ public final class CommandLineRunner {
return;
}
Config config = new Config();
Inputs inputs = new Inputs();
for (String arg : args) {
if ("--try_harder".equals(arg)) {
config.tryHarder = true;
config.setTryHarder(true);
} else if ("--pure_barcode".equals(arg)) {
config.pureBarcode = true;
config.setPureBarcode(true);
} else if ("--products_only".equals(arg)) {
config.productsOnly = true;
config.setProductsOnly(true);
} else if ("--dump_results".equals(arg)) {
config.dumpResults = true;
config.setDumpResults(true);
} else if ("--dump_black_point".equals(arg)) {
config.dumpBlackPoint = true;
config.setDumpBlackPoint(true);
} else if ("--multi".equals(arg)) {
config.multi = true;
config.setMulti(true);
} else if ("--brief".equals(arg)) {
config.brief = true;
config.setBrief(true);
} else if ("--recursive".equals(arg)) {
config.recursive = true;
config.setRecursive(true);
} else if (arg.startsWith("--crop")) {
config.crop = new int[4];
int[] crop = new int[4];
String[] tokens = arg.substring(7).split(",");
for (int i = 0; i < config.crop.length; i++) {
config.crop[i] = Integer.parseInt(tokens[i]);
for (int i = 0; i < config.getCrop().length; i++) {
crop[i] = Integer.parseInt(tokens[i]);
}
config.setCrop(crop);
} else if (arg.startsWith("--threads") && arg.length() >= 10) {
int threads = Integer.parseInt(arg.substring(10));
if (threads > 1) {
config.threads = threads;
config.setThreads(threads);
}
} else if (arg.startsWith("-")) {
System.err.println("Unknown command line option " + arg);
@ -193,23 +83,23 @@ public final class CommandLineRunner {
return;
}
}
config.hints = buildHints();
config.setHints(buildHints(config));
for (String arg : args) {
if (!arg.startsWith("--")) {
addArgumentToInputs(arg);
addArgumentToInputs(arg, config, inputs);
}
}
ArrayList<DecodeThread> threads = new ArrayList<DecodeThread>(config.threads);
for (int x = 0; x < config.threads; x++) {
DecodeThread thread = new DecodeThread();
List<DecodeThread> threads = new ArrayList<DecodeThread>(config.getThreads());
for (int x = 0; x < config.getThreads(); x++) {
DecodeThread thread = new DecodeThread(config, inputs);
threads.add(thread);
thread.start();
}
int successful = 0;
for (int x = 0; x < config.threads; x++) {
for (int x = 0; x < config.getThreads(); x++) {
threads.get(x).join();
successful += threads.get(x).getSuccessful();
}
@ -222,20 +112,20 @@ public final class CommandLineRunner {
// Build all the inputs up front into a single flat list, so the threads can atomically pull
// paths/URLs off the queue.
private static void addArgumentToInputs(String argument) {
private static void addArgumentToInputs(String argument, Config config, Inputs inputs) {
File inputFile = new File(argument);
if (inputFile.exists()) {
if (inputFile.isDirectory()) {
for (File singleFile : inputFile.listFiles()) {
String filename = singleFile.getName().toLowerCase();
String filename = singleFile.getName().toLowerCase(Locale.ENGLISH);
// Skip hidden files and directories (e.g. svn stuff).
if (filename.startsWith(".")) {
continue;
}
// Recurse on nested directories if requested, otherwise skip them.
if (singleFile.isDirectory()) {
if (config.recursive) {
addArgumentToInputs(singleFile.getAbsolutePath());
if (config.isRecursive()) {
addArgumentToInputs(singleFile.getAbsolutePath(), config, inputs);
}
continue;
}
@ -254,7 +144,7 @@ public final class CommandLineRunner {
}
// Manually turn on all formats, even those not yet considered production quality.
private static Hashtable<DecodeHintType, Object> buildHints() {
private static Hashtable<DecodeHintType, Object> buildHints(Config config) {
Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>(3);
Vector<BarcodeFormat> vector = new Vector<BarcodeFormat>(8);
vector.addElement(BarcodeFormat.UPC_A);
@ -262,7 +152,7 @@ public final class CommandLineRunner {
vector.addElement(BarcodeFormat.EAN_13);
vector.addElement(BarcodeFormat.EAN_8);
vector.addElement(BarcodeFormat.RSS14);
if (!config.productsOnly) {
if (!config.isProductsOnly()) {
vector.addElement(BarcodeFormat.CODE_39);
vector.addElement(BarcodeFormat.CODE_93);
vector.addElement(BarcodeFormat.CODE_128);
@ -274,10 +164,10 @@ public final class CommandLineRunner {
vector.addElement(BarcodeFormat.CODABAR);
}
hints.put(DecodeHintType.POSSIBLE_FORMATS, vector);
if (config.tryHarder) {
if (config.isTryHarder()) {
hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
}
if (config.pureBarcode) {
if (config.isPureBarcode()) {
hints.put(DecodeHintType.PURE_BARCODE, Boolean.TRUE);
}
return hints;
@ -298,254 +188,4 @@ public final class CommandLineRunner {
System.err.println(" --threads=n: The number of threads to use while decoding");
}
private static void dumpResult(File input, Result result) throws IOException {
String name = input.getAbsolutePath();
int pos = name.lastIndexOf('.');
if (pos > 0) {
name = name.substring(0, pos);
}
File dump = new File(name + ".txt");
writeStringToFile(result.getText(), dump);
}
private static void dumpResultMulti(File input, Result[] results) throws IOException {
String name = input.getAbsolutePath();
int pos = name.lastIndexOf('.');
if (pos > 0) {
name = name.substring(0, pos);
}
File dump = new File(name + ".txt");
writeResultsToFile(results, dump);
}
private static void writeStringToFile(String value, File file) throws IOException {
Writer out = new OutputStreamWriter(new FileOutputStream(file), Charset.forName("UTF8"));
try {
out.write(value);
} finally {
out.close();
}
}
private static void writeResultsToFile(Result[] results, File file) throws IOException {
String newline = System.getProperty("line.separator");
Writer out = new OutputStreamWriter(new FileOutputStream(file), Charset.forName("UTF8"));
try {
for (Result result : results) {
out.write(result.getText());
out.write(newline);
}
} finally {
out.close();
}
}
private static Result decode(URI uri, Hashtable<DecodeHintType, Object> hints)
throws IOException {
BufferedImage image;
try {
image = ImageIO.read(uri.toURL());
} catch (IllegalArgumentException iae) {
throw new FileNotFoundException("Resource not found: " + uri);
}
if (image == null) {
System.err.println(uri.toString() + ": Could not load image");
return null;
}
try {
LuminanceSource source;
if (config.crop == null) {
source = new BufferedImageLuminanceSource(image);
} else {
source = new BufferedImageLuminanceSource(image, config.crop[0], config.crop[1],
config.crop[2], config.crop[3]);
}
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
if (config.dumpBlackPoint) {
dumpBlackPoint(uri, image, bitmap);
}
Result result = new MultiFormatReader().decode(bitmap, hints);
if (config.brief) {
System.out.println(uri.toString() + ": Success");
} else {
ParsedResult parsedResult = ResultParser.parseResult(result);
System.out.println(uri.toString() + " (format: " + result.getBarcodeFormat() + ", type: " +
parsedResult.getType() + "):\nRaw result:\n" + result.getText() + "\nParsed result:\n" +
parsedResult.getDisplayResult());
System.out.println("Found " + result.getResultPoints().length + " result points.");
for (int i = 0; i < result.getResultPoints().length; i++) {
ResultPoint rp = result.getResultPoints()[i];
System.out.println(" Point " + i + ": (" + rp.getX() + ',' + rp.getY() + ')');
}
}
return result;
} catch (NotFoundException nfe) {
System.out.println(uri.toString() + ": No barcode found");
return null;
// } finally {
// Uncomment these lines when turning on exception tracking in ReaderException.
//System.out.println("Threw " + ReaderException.getExceptionCountAndReset() + " exceptions");
//System.out.println("Throwers:\n" + ReaderException.getThrowersAndReset());
}
}
private static Result[] decodeMulti(URI uri, Hashtable<DecodeHintType, Object> hints)
throws IOException {
BufferedImage image;
try {
image = ImageIO.read(uri.toURL());
} catch (IllegalArgumentException iae) {
throw new FileNotFoundException("Resource not found: " + uri);
}
if (image == null) {
System.err.println(uri.toString() + ": Could not load image");
return null;
}
try {
LuminanceSource source;
if (config.crop == null) {
source = new BufferedImageLuminanceSource(image);
} else {
source = new BufferedImageLuminanceSource(image, config.crop[0], config.crop[1],
config.crop[2], config.crop[3]);
}
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
if (config.dumpBlackPoint) {
dumpBlackPoint(uri, image, bitmap);
}
MultiFormatReader multiFormatReader = new MultiFormatReader();
GenericMultipleBarcodeReader reader = new GenericMultipleBarcodeReader(
multiFormatReader);
Result[] results = reader.decodeMultiple(bitmap, hints);
if (config.brief) {
System.out.println(uri.toString() + ": Success");
} else {
for (Result result : results) {
ParsedResult parsedResult = ResultParser.parseResult(result);
System.out.println(uri.toString() + " (format: "
+ result.getBarcodeFormat() + ", type: "
+ parsedResult.getType() + "):\nRaw result:\n"
+ result.getText() + "\nParsed result:\n"
+ parsedResult.getDisplayResult());
System.out.println("Found " + result.getResultPoints().length + " result points.");
for (int i = 0; i < result.getResultPoints().length; i++) {
ResultPoint rp = result.getResultPoints()[i];
System.out.println(" Point " + i + ": (" + rp.getX() + ',' + rp.getY() + ')');
}
}
}
return results;
} catch (NotFoundException nfe) {
System.out.println(uri.toString() + ": No barcode found");
return null;
}
}
// Writes out a single PNG which is three times the width of the input image, containing from left
// to right: the original image, the row sampling monochrome version, and the 2D sampling
// monochrome version.
// TODO: Update to compare different Binarizer implementations.
private static void dumpBlackPoint(URI uri, BufferedImage image, BinaryBitmap bitmap) {
String inputName = uri.getPath();
if (inputName.contains(".mono.png")) {
return;
}
int width = bitmap.getWidth();
int height = bitmap.getHeight();
int stride = width * 3;
int[] pixels = new int[stride * height];
// The original image
int[] argb = new int[width];
for (int y = 0; y < height; y++) {
image.getRGB(0, y, width, 1, argb, 0, width);
System.arraycopy(argb, 0, pixels, y * stride, width);
}
// Row sampling
BitArray row = new BitArray(width);
for (int y = 0; y < height; y++) {
try {
row = bitmap.getBlackRow(y, row);
} catch (NotFoundException nfe) {
// If fetching the row failed, draw a red line and keep going.
int offset = y * stride + width;
for (int x = 0; x < width; x++) {
pixels[offset + x] = 0xffff0000;
}
continue;
}
int offset = y * stride + width;
for (int x = 0; x < width; x++) {
if (row.get(x)) {
pixels[offset + x] = 0xff000000;
} else {
pixels[offset + x] = 0xffffffff;
}
}
}
// 2D sampling
try {
for (int y = 0; y < height; y++) {
BitMatrix matrix = bitmap.getBlackMatrix();
int offset = y * stride + width * 2;
for (int x = 0; x < width; x++) {
if (matrix.get(x, y)) {
pixels[offset + x] = 0xff000000;
} else {
pixels[offset + x] = 0xffffffff;
}
}
}
} catch (NotFoundException nfe) {
}
writeResultImage(stride, height, pixels, uri, inputName, ".mono.png");
}
private static void writeResultImage(int stride, int height, int[] pixels, URI uri,
String inputName, String suffix) {
// Write the result
BufferedImage result = new BufferedImage(stride, height, BufferedImage.TYPE_INT_ARGB);
result.setRGB(0, 0, stride, height, pixels, 0, stride);
// Use the current working directory for URLs
String resultName = inputName;
if ("http".equals(uri.getScheme())) {
int pos = resultName.lastIndexOf('/');
if (pos > 0) {
resultName = '.' + resultName.substring(pos);
}
}
int pos = resultName.lastIndexOf('.');
if (pos > 0) {
resultName = resultName.substring(0, pos);
}
resultName += suffix;
OutputStream outStream = null;
try {
outStream = new FileOutputStream(resultName);
ImageIO.write(result, "png", outStream);
} catch (FileNotFoundException e) {
System.err.println("Could not create " + resultName);
} catch (IOException e) {
System.err.println("Could not write to " + resultName);
} finally {
try {
if (outStream != null) {
outStream.close();
}
} catch (IOException ioe) {
// continue
}
}
}
}

124
javase/src/com/google/zxing/client/j2se/Config.java Normal file
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@ -0,0 +1,124 @@
/*
* Copyright 2011 ZXing authors
*
* 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.google.zxing.client.j2se;
import com.google.zxing.DecodeHintType;
import java.util.Hashtable;
final class Config {
private Hashtable<DecodeHintType, Object> hints;
private boolean tryHarder;
private boolean pureBarcode;
private boolean productsOnly;
private boolean dumpResults;
private boolean dumpBlackPoint;
private boolean multi;
private boolean brief;
private boolean recursive;
private int[] crop;
private int threads = 1;
Hashtable<DecodeHintType, Object> getHints() {
return hints;
}
void setHints(Hashtable<DecodeHintType, Object> hints) {
this.hints = hints;
}
boolean isTryHarder() {
return tryHarder;
}
void setTryHarder(boolean tryHarder) {
this.tryHarder = tryHarder;
}
boolean isPureBarcode() {
return pureBarcode;
}
void setPureBarcode(boolean pureBarcode) {
this.pureBarcode = pureBarcode;
}
boolean isProductsOnly() {
return productsOnly;
}
void setProductsOnly(boolean productsOnly) {
this.productsOnly = productsOnly;
}
boolean isDumpResults() {
return dumpResults;
}
void setDumpResults(boolean dumpResults) {
this.dumpResults = dumpResults;
}
boolean isDumpBlackPoint() {
return dumpBlackPoint;
}
void setDumpBlackPoint(boolean dumpBlackPoint) {
this.dumpBlackPoint = dumpBlackPoint;
}
boolean isMulti() {
return multi;
}
void setMulti(boolean multi) {
this.multi = multi;
}
boolean isBrief() {
return brief;
}
void setBrief(boolean brief) {
this.brief = brief;
}
boolean isRecursive() {
return recursive;
}
void setRecursive(boolean recursive) {
this.recursive = recursive;
}
int[] getCrop() {
return crop;
}
void setCrop(int[] crop) {
this.crop = crop;
}
int getThreads() {
return threads;
}
void setThreads(int threads) {
this.threads = threads;
}
}

360
javase/src/com/google/zxing/client/j2se/DecodeThread.java Normal file
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@ -0,0 +1,360 @@
/*
* Copyright 2011 ZXing authors
*
* 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.google.zxing.client.j2se;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.NotFoundException;
import com.google.zxing.Result;
import com.google.zxing.ResultPoint;
import com.google.zxing.client.result.ParsedResult;
import com.google.zxing.client.result.ResultParser;
import com.google.zxing.common.BitArray;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.multi.GenericMultipleBarcodeReader;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.URI;
import java.nio.charset.Charset;
import java.util.Hashtable;
/**
* One of a pool of threads which pulls images off the Inputs queue and decodes them in parallel.
*
* @see CommandLineRunner
*/
final class DecodeThread extends Thread {
private int successful;
private final Config config;
private final Inputs inputs;
DecodeThread(Config config, Inputs inputs) {
this.config = config;
this.inputs = inputs;
}
@Override
public void run() {
while (true) {
String input = inputs.getNextInput();
if (input == null) {
break;
}
File inputFile = new File(input);
if (inputFile.exists()) {
try {
if (config.isMulti()) {
Result[] results = decodeMulti(inputFile.toURI(), config.getHints());
if (results != null) {
successful++;
if (config.isDumpResults()) {
dumpResultMulti(inputFile, results);
}
}
} else {
Result result = decode(inputFile.toURI(), config.getHints());
if (result != null) {
successful++;
if (config.isDumpResults()) {
dumpResult(inputFile, result);
}
}
}
} catch (IOException e) {
}
} else {
try {
Result result = decode(new URI(input), config.getHints());
if (result != null) {
successful++;
}
} catch (Exception e) {
}
}
}
}
public int getSuccessful() {
return successful;
}
private static void dumpResult(File input, Result result) throws IOException {
String name = input.getAbsolutePath();
int pos = name.lastIndexOf('.');
if (pos > 0) {
name = name.substring(0, pos);
}
File dump = new File(name + ".txt");
writeStringToFile(result.getText(), dump);
}
private static void dumpResultMulti(File input, Result[] results) throws IOException {
String name = input.getAbsolutePath();
int pos = name.lastIndexOf('.');
if (pos > 0) {
name = name.substring(0, pos);
}
File dump = new File(name + ".txt");
writeResultsToFile(results, dump);
}
private static void writeStringToFile(String value, File file) throws IOException {
Writer out = new OutputStreamWriter(new FileOutputStream(file), Charset.forName("UTF8"));
try {
out.write(value);
} finally {
out.close();
}
}
private static void writeResultsToFile(Result[] results, File file) throws IOException {
String newline = System.getProperty("line.separator");
Writer out = new OutputStreamWriter(new FileOutputStream(file), Charset.forName("UTF8"));
try {
for (Result result : results) {
out.write(result.getText());
out.write(newline);
}
} finally {
out.close();
}
}
private Result decode(URI uri, Hashtable<DecodeHintType, Object> hints)
throws IOException {
BufferedImage image;
try {
image = ImageIO.read(uri.toURL());
} catch (IllegalArgumentException iae) {
throw new FileNotFoundException("Resource not found: " + uri);
}
if (image == null) {
System.err.println(uri.toString() + ": Could not load image");
return null;
}
try {
LuminanceSource source;
if (config.getCrop() == null) {
source = new BufferedImageLuminanceSource(image);
} else {
int[] crop = config.getCrop();
source = new BufferedImageLuminanceSource(image, crop[0], crop[1], crop[2], crop[3]);
}
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
if (config.isDumpBlackPoint()) {
dumpBlackPoint(uri, image, bitmap);
}
Result result = new MultiFormatReader().decode(bitmap, hints);
if (config.isBrief()) {
System.out.println(uri.toString() + ": Success");
} else {
ParsedResult parsedResult = ResultParser.parseResult(result);
System.out.println(uri.toString() + " (format: " + result.getBarcodeFormat() + ", type: " +
parsedResult.getType() + "):\nRaw result:\n" + result.getText() + "\nParsed result:\n" +
parsedResult.getDisplayResult());
System.out.println("Found " + result.getResultPoints().length + " result points.");
for (int i = 0; i < result.getResultPoints().length; i++) {
ResultPoint rp = result.getResultPoints()[i];
System.out.println(" Point " + i + ": (" + rp.getX() + ',' + rp.getY() + ')');
}
}
return result;
} catch (NotFoundException nfe) {
System.out.println(uri.toString() + ": No barcode found");
return null;
// } finally {
// Uncomment these lines when turning on exception tracking in ReaderException.
//System.out.println("Threw " + ReaderException.getExceptionCountAndReset() + " exceptions");
//System.out.println("Throwers:\n" + ReaderException.getThrowersAndReset());
}
}
private Result[] decodeMulti(URI uri, Hashtable<DecodeHintType, Object> hints)
throws IOException {
BufferedImage image;
try {
image = ImageIO.read(uri.toURL());
} catch (IllegalArgumentException iae) {
throw new FileNotFoundException("Resource not found: " + uri);
}
if (image == null) {
System.err.println(uri.toString() + ": Could not load image");
return null;
}
try {
LuminanceSource source;
if (config.getCrop() == null) {
source = new BufferedImageLuminanceSource(image);
} else {
int[] crop = config.getCrop();
source = new BufferedImageLuminanceSource(image, crop[0], crop[1], crop[2], crop[3]);
}
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
if (config.isDumpBlackPoint()) {
dumpBlackPoint(uri, image, bitmap);
}
MultiFormatReader multiFormatReader = new MultiFormatReader();
GenericMultipleBarcodeReader reader = new GenericMultipleBarcodeReader(
multiFormatReader);
Result[] results = reader.decodeMultiple(bitmap, hints);
if (config.isBrief()) {
System.out.println(uri.toString() + ": Success");
} else {
for (Result result : results) {
ParsedResult parsedResult = ResultParser.parseResult(result);
System.out.println(uri.toString() + " (format: "
+ result.getBarcodeFormat() + ", type: "
+ parsedResult.getType() + "):\nRaw result:\n"
+ result.getText() + "\nParsed result:\n"
+ parsedResult.getDisplayResult());
System.out.println("Found " + result.getResultPoints().length + " result points.");
for (int i = 0; i < result.getResultPoints().length; i++) {
ResultPoint rp = result.getResultPoints()[i];
System.out.println(" Point " + i + ": (" + rp.getX() + ',' + rp.getY() + ')');
}
}
}
return results;
} catch (NotFoundException nfe) {
System.out.println(uri.toString() + ": No barcode found");
return null;
}
}
/**
* Writes out a single PNG which is three times the width of the input image, containing from left
* to right: the original image, the row sampling monochrome version, and the 2D sampling
* monochrome version.
*/
private static void dumpBlackPoint(URI uri, BufferedImage image, BinaryBitmap bitmap) {
// TODO: Update to compare different Binarizer implementations.
String inputName = uri.getPath();
if (inputName.contains(".mono.png")) {
return;
}
int width = bitmap.getWidth();
int height = bitmap.getHeight();
int stride = width * 3;
int[] pixels = new int[stride * height];
// The original image
int[] argb = new int[width];
for (int y = 0; y < height; y++) {
image.getRGB(0, y, width, 1, argb, 0, width);
System.arraycopy(argb, 0, pixels, y * stride, width);
}
// Row sampling
BitArray row = new BitArray(width);
for (int y = 0; y < height; y++) {
try {
row = bitmap.getBlackRow(y, row);
} catch (NotFoundException nfe) {
// If fetching the row failed, draw a red line and keep going.
int offset = y * stride + width;
for (int x = 0; x < width; x++) {
pixels[offset + x] = 0xffff0000;
}
continue;
}
int offset = y * stride + width;
for (int x = 0; x < width; x++) {
if (row.get(x)) {
pixels[offset + x] = 0xff000000;
} else {
pixels[offset + x] = 0xffffffff;
}
}
}
// 2D sampling
try {
for (int y = 0; y < height; y++) {
BitMatrix matrix = bitmap.getBlackMatrix();
int offset = y * stride + width * 2;
for (int x = 0; x < width; x++) {
if (matrix.get(x, y)) {
pixels[offset + x] = 0xff000000;
} else {
pixels[offset + x] = 0xffffffff;
}
}
}
} catch (NotFoundException nfe) {
}
writeResultImage(stride, height, pixels, uri, inputName, ".mono.png");
}
private static void writeResultImage(int stride, int height, int[] pixels, URI uri,
String inputName, String suffix) {
// Write the result
BufferedImage result = new BufferedImage(stride, height, BufferedImage.TYPE_INT_ARGB);
result.setRGB(0, 0, stride, height, pixels, 0, stride);
// Use the current working directory for URLs
String resultName = inputName;
if ("http".equals(uri.getScheme())) {
int pos = resultName.lastIndexOf('/');
if (pos > 0) {
resultName = '.' + resultName.substring(pos);
}
}
int pos = resultName.lastIndexOf('.');
if (pos > 0) {
resultName = resultName.substring(0, pos);
}
resultName += suffix;
OutputStream outStream = null;
try {
outStream = new FileOutputStream(resultName);
ImageIO.write(result, "png", outStream);
} catch (FileNotFoundException e) {
System.err.println("Could not create " + resultName);
} catch (IOException e) {
System.err.println("Could not write to " + resultName);
} finally {
try {
if (outStream != null) {
outStream.close();
}
} catch (IOException ioe) {
// continue
}
}
}
}

3
javase/src/com/google/zxing/client/j2se/ImageConverter.java
View file

@ -27,6 +27,7 @@ import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.util.Locale;
import javax.imageio.ImageIO;
@ -71,7 +72,7 @@ public final class ImageConverter {
if (inputFile.exists()) {
if (inputFile.isDirectory()) {
for (File input : inputFile.listFiles()) {
String filename = input.getName().toLowerCase();
String filename = input.getName().toLowerCase(Locale.ENGLISH);
// Skip hidden files and text files (the latter is found in the blackbox tests).
if (filename.startsWith(".") || filename.endsWith(".txt")) {
continue;

47
javase/src/com/google/zxing/client/j2se/Inputs.java Normal file
View file

@ -0,0 +1,47 @@
/*
* Copyright 2011 ZXing authors
*
* 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.google.zxing.client.j2se;
import java.util.ArrayList;
import java.util.List;
/**
* Represents the collection of all images files/URLs to decode.
*/
final class Inputs {
private final List<String> inputs = new ArrayList<String>(10);
private int position = 0;
public synchronized void addInput(String pathOrUrl) {
inputs.add(pathOrUrl);
}
public synchronized String getNextInput() {
if (position < inputs.size()) {
String result = inputs.get(position);
position++;
return result;
} else {
return null;
}
}
public synchronized int getInputCount() {
return inputs.size();
}
}