boolean productsOnly = false;
boolean dumpResults = false;
boolean dumpBlackPoint = false;
+ int[] crop = null;
for (String arg : args) {
if ("--try_harder".equals(arg)) {
tryHarder = true;
dumpResults = true;
} else if ("--dump_black_point".equals(arg)) {
dumpBlackPoint = true;
+ } else if (arg.startsWith("--crop")) {
+ crop = new int[4];
+ String[] tokens = arg.substring(7).split(",");
+ for (int i = 0; i < crop.length; i++) {
+ crop[i] = Integer.parseInt(tokens[i]);
+ }
} else if (arg.startsWith("-")) {
System.err.println("Unknown command line option " + arg);
printUsage();
Hashtable<DecodeHintType, Object> hints = buildHints(tryHarder, pureBarcode, productsOnly);
for (String arg : args) {
if (!arg.startsWith("--")) {
- decodeOneArgument(arg, hints, dumpResults, dumpBlackPoint);
+ decodeOneArgument(arg, hints, dumpResults, dumpBlackPoint, crop);
}
}
}
vector.addElement(BarcodeFormat.UPC_E);
vector.addElement(BarcodeFormat.EAN_13);
vector.addElement(BarcodeFormat.EAN_8);
+ vector.addElement(BarcodeFormat.RSS14);
if (!productsOnly) {
vector.addElement(BarcodeFormat.CODE_39);
vector.addElement(BarcodeFormat.CODE_128);
System.err.println("Decode barcode images using the ZXing library\n");
System.err.println("usage: CommandLineRunner { file | dir | url } [ options ]");
System.err.println(" --try_harder: Use the TRY_HARDER hint, default is normal (mobile) mode");
+ System.err.println(" --pure_barcode: Input image is a pure monochrome barcode image, not a photo");
System.err.println(" --products_only: Only decode the UPC and EAN families of barcodes");
System.err.println(" --dump_results: Write the decoded contents to input.txt");
System.err.println(" --dump_black_point: Compare black point algorithms as input.mono.png");
+ System.err.println(" --crop=left,top,width,height: Only examine cropped region of input image(s)");
}
- private static void decodeOneArgument(String argument, Hashtable<DecodeHintType, Object> hints,
- boolean dumpResults, boolean dumpBlackPoint) throws IOException,
+ private static void decodeOneArgument(String argument,
+ Hashtable<DecodeHintType, Object> hints,
+ boolean dumpResults,
+ boolean dumpBlackPoint,
+ int[] crop) throws IOException,
URISyntaxException {
File inputFile = new File(argument);
if (filename.contains(".mono.png")) {
continue;
}
- Result result = decode(input.toURI(), hints, dumpBlackPoint);
+ Result result = decode(input.toURI(), hints, dumpBlackPoint, crop);
if (result != null) {
successful++;
if (dumpResults) {
System.out.println("\nDecoded " + successful + " files out of " + total +
" successfully (" + (successful * 100 / total) + "%)\n");
} else {
- Result result = decode(inputFile.toURI(), hints, dumpBlackPoint);
+ Result result = decode(inputFile.toURI(), hints, dumpBlackPoint, crop);
if (dumpResults) {
dumpResult(inputFile, result);
}
}
} else {
- decode(new URI(argument), hints, dumpBlackPoint);
+ decode(new URI(argument), hints, dumpBlackPoint, crop);
}
}
}
}
- private static Result decode(URI uri, Hashtable<DecodeHintType, Object> hints,
- boolean dumpBlackPoint) throws IOException {
+ private static Result decode(URI uri,
+ Hashtable<DecodeHintType, Object> hints,
+ boolean dumpBlackPoint,
+ int[] crop) throws IOException {
BufferedImage image;
try {
image = ImageIO.read(uri.toURL());
return null;
}
try {
- LuminanceSource source = new BufferedImageLuminanceSource(image);
+ LuminanceSource source;
+ if (crop == null) {
+ source = new BufferedImageLuminanceSource(image);
+ } else {
+ source = new BufferedImageLuminanceSource(image, crop[0], crop[1], crop[2], crop[3]);
+ }
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
if (dumpBlackPoint) {
dumpBlackPoint(uri, image, bitmap);