X-Git-Url: http://git.rot13.org/?p=zxing.git;a=blobdiff_plain;f=javase%2Fsrc%2Fcom%2Fgoogle%2Fzxing%2Fclient%2Fj2se%2FCommandLineRunner.java;h=877733729dc8ce73a3e879e34e20cdf05038176e;hp=ea09f34cffe4c5c2e24a9031ab6726fdca5f38e9;hb=2d9efc5f0d19d70fb4f240f506bc23992ab3fde6;hpb=48fc9fb7aed6b9e7764016055bd93006e3260c64 diff --git a/javase/src/com/google/zxing/client/j2se/CommandLineRunner.java b/javase/src/com/google/zxing/client/j2se/CommandLineRunner.java index ea09f34c..87773372 100644 --- a/javase/src/com/google/zxing/client/j2se/CommandLineRunner.java +++ b/javase/src/com/google/zxing/client/j2se/CommandLineRunner.java @@ -16,17 +16,19 @@ package com.google.zxing.client.j2se; -import com.google.zxing.BlackPointEstimationMethod; +import com.google.zxing.BarcodeFormat; +import com.google.zxing.BinaryBitmap; import com.google.zxing.DecodeHintType; -import com.google.zxing.MonochromeBitmapSource; +import com.google.zxing.LuminanceSource; import com.google.zxing.MultiFormatReader; -import com.google.zxing.ReaderException; +import com.google.zxing.NotFoundException; import com.google.zxing.Result; 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 javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.File; import java.io.FileNotFoundException; @@ -39,6 +41,9 @@ import java.net.URI; import java.net.URISyntaxException; import java.nio.charset.Charset; import java.util.Hashtable; +import java.util.Vector; + +import javax.imageio.ImageIO; /** *

This simple command line utility decodes files, directories of files, or URIs which are passed @@ -59,40 +64,91 @@ public final class CommandLineRunner { printUsage(); return; } - Hashtable hints = null; + + boolean tryHarder = false; + boolean pureBarcode = false; + boolean productsOnly = false; boolean dumpResults = false; boolean dumpBlackPoint = false; + int[] crop = null; for (String arg : args) { if ("--try_harder".equals(arg)) { - hints = new Hashtable(3); - hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE); + tryHarder = true; + } else if ("--pure_barcode".equals(arg)) { + pureBarcode = true; + } else if ("--products_only".equals(arg)) { + productsOnly = true; } else if ("--dump_results".equals(arg)) { 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.out.println("Unknown command line option " + arg); + System.err.println("Unknown command line option " + arg); printUsage(); return; } } + + Hashtable hints = buildHints(tryHarder, pureBarcode, productsOnly); for (String arg : args) { if (!arg.startsWith("--")) { - decodeOneArgument(arg, hints, dumpResults, dumpBlackPoint); + decodeOneArgument(arg, hints, dumpResults, dumpBlackPoint, crop); } } } + // Manually turn on all formats, even those not yet considered production quality. + private static Hashtable buildHints(boolean tryHarder, + boolean pureBarcode, + boolean productsOnly) { + Hashtable hints = new Hashtable(3); + Vector vector = new Vector(8); + vector.addElement(BarcodeFormat.UPC_A); + 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_93); + vector.addElement(BarcodeFormat.CODE_128); + vector.addElement(BarcodeFormat.ITF); + vector.addElement(BarcodeFormat.QR_CODE); + vector.addElement(BarcodeFormat.DATAMATRIX); + vector.addElement(BarcodeFormat.PDF417); + } + hints.put(DecodeHintType.POSSIBLE_FORMATS, vector); + if (tryHarder) { + hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE); + } + if (pureBarcode) { + hints.put(DecodeHintType.PURE_BARCODE, Boolean.TRUE); + } + return hints; + } + private static void printUsage() { - System.out.println("Decode barcode images using the ZXing library\n"); - System.out.println("usage: CommandLineRunner { file | dir | url } [ options ]"); - System.out.println(" --try_harder: Use the TRY_HARDER hint, default is normal (mobile) mode"); - System.out.println(" --dump_results: Write the decoded contents to input.txt"); - System.out.println(" --dump_black_point: Compare black point algorithms as input.mono.png"); + 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 hints, - boolean dumpResults, boolean dumpBlackPoint) throws IOException, + private static void decodeOneArgument(String argument, + Hashtable hints, + boolean dumpResults, + boolean dumpBlackPoint, + int[] crop) throws IOException, URISyntaxException { File inputFile = new File(argument); @@ -110,7 +166,7 @@ public final class CommandLineRunner { 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) { @@ -122,13 +178,13 @@ public final class CommandLineRunner { 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); } } @@ -151,8 +207,10 @@ public final class CommandLineRunner { } } - private static Result decode(URI uri, Hashtable hints, - boolean dumpBlackPoint) throws IOException { + private static Result decode(URI uri, + Hashtable hints, + boolean dumpBlackPoint, + int[] crop) throws IOException { BufferedImage image; try { image = ImageIO.read(uri.toURL()); @@ -164,33 +222,44 @@ public final class CommandLineRunner { return null; } try { - MonochromeBitmapSource source = new BufferedImageMonochromeBitmapSource(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, source); + dumpBlackPoint(uri, image, bitmap); } - Result result = new MultiFormatReader().decode(source, hints); + Result result = new MultiFormatReader().decode(bitmap, hints); 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()); return result; - } catch (ReaderException e) { + } 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()); } } // 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, MonochromeBitmapSource source) { + // 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 = source.getWidth(); - int height = source.getHeight(); + int width = bitmap.getWidth(); + int height = bitmap.getHeight(); int stride = width * 3; int[] pixels = new int[stride * height]; @@ -200,22 +269,21 @@ public final class CommandLineRunner { image.getRGB(0, y, width, 1, argb, 0, width); System.arraycopy(argb, 0, pixels, y * stride, width); } - argb = null; // Row sampling BitArray row = new BitArray(width); for (int y = 0; y < height; y++) { try { - source.estimateBlackPoint(BlackPointEstimationMethod.ROW_SAMPLING, y); - } catch (ReaderException e) { - // If the row histogram failed, draw a red line and keep going + 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; } - source.getBlackRow(y, row, 0, width); + int offset = y * stride + width; for (int x = 0; x < width; x++) { if (row.get(x)) { @@ -228,19 +296,18 @@ public final class CommandLineRunner { // 2D sampling try { - source.estimateBlackPoint(BlackPointEstimationMethod.TWO_D_SAMPLING, 0); for (int y = 0; y < height; y++) { - source.getBlackRow(y, row, 0, width); + BitMatrix matrix = bitmap.getBlackMatrix(); int offset = y * stride + width * 2; for (int x = 0; x < width; x++) { - if (row.get(x)) { + if (matrix.get(x, y)) { pixels[offset + x] = 0xff000000; } else { pixels[offset + x] = 0xffffffff; } } } - } catch (ReaderException e) { + } catch (NotFoundException nfe) { } // Write the result @@ -249,10 +316,10 @@ public final class CommandLineRunner { // Use the current working directory for URLs String resultName = inputName; - if (uri.getScheme().equals("http")) { + if ("http".equals(uri.getScheme())) { int pos = resultName.lastIndexOf('/'); if (pos > 0) { - resultName = "." + resultName.substring(pos); + resultName = '.' + resultName.substring(pos); } } int pos = resultName.lastIndexOf('.'); @@ -260,13 +327,22 @@ public final class CommandLineRunner { resultName = resultName.substring(0, pos); } resultName += ".mono.png"; + OutputStream outStream = null; try { - OutputStream outStream = new FileOutputStream(resultName); + outStream = new FileOutputStream(resultName); ImageIO.write(result, "png", outStream); } catch (FileNotFoundException e) { - System.out.println("Could not create " + resultName); + System.err.println("Could not create " + resultName); } catch (IOException e) { - System.out.println("Could not write to " + resultName); + System.err.println("Could not write to " + resultName); + } finally { + try { + if (outStream != null) { + outStream.close(); + } + } catch (IOException ioe) { + // continue + } } }