Java 仅Tess4j OcrEngineMode多维数据集:内存访问无效
我想扫描图像(tif图像)以获得一个数字。当Tess4J设置为默认引擎时,它经常混淆6代表5,0代表9。。。我想尝试它与立方体唯一的引擎 这是myconfig文件:Java 仅Tess4j OcrEngineMode多维数据集:内存访问无效,java,tesseract,tess4j,Java,Tesseract,Tess4j,我想扫描图像(tif图像)以获得一个数字。当Tess4J设置为默认引擎时,它经常混淆6代表5,0代表9。。。我想尝试它与立方体唯一的引擎 这是myconfig文件: tessedit_ocr_engine_mode 2 load_system_dawg F load_freq_dawg F load_punc_dawg F load_number_dawg F load_unambig_dawg F load_bigram_dawg F load_fixed_le
tessedit_ocr_engine_mode 2
load_system_dawg F
load_freq_dawg F
load_punc_dawg F
load_number_dawg F
load_unambig_dawg F
load_bigram_dawg F
load_fixed_length_dawgs F
user_words_suffix user-words
user_patterns_suffix user-patterns
tessedit_ocr_engine_mode 1
load_system_dawg F
load_freq_dawg F
load_punc_dawg F
load_number_dawg F
load_unambig_dawg F
load_bigram_dawg F
load_fixed_length_dawgs F
user_words_suffix user-words
user_patterns_suffix user-patterns
这是我的Java代码
public class App {
public static final String NUMBERS = "Oo0123456789";
public static final String TESSDATA_PATH_FOLDER = "D:/compuwork/ambienti/workspace_mars/ocrmaven/tessdata";
private static final Logger logger = LoggerFactory.getLogger(new LoggHelper().toString());
Tesseract1 instance;
String nomeCartella="005";
String path = "D:\\Documenti\\OCR\\scansioni\\"+nomeCartella;
String resultPath = "D:\\Documenti\\OCR\\RISULTATI\\"+nomeCartella;
String resultCorrettiPath = resultPath+"\\"+"corretti";
String resultErratiPath = resultPath+"\\"+"errati";
String tmpPath = resultPath+"\\tmpImmagine";
String anotherCopy = resultPath+"\\"+"ad";
String preScanPath = resultPath+"\\prescan";
int validi = 0;
int nonValidi = 0;
public static void main( String[] args ) {
try {
//write my dictionary
File fileDir = new File(TESSDATA_PATH_FOLDER+"\\"+"eng.user-words");
Writer out = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream(fileDir), "UTF8"));
for(int i=120000; i<200000;i++) {
out.append(""+i).append("\r\n");
}
out.flush();
out.close();
//write my pattern
fileDir = new File(TESSDATA_PATH_FOLDER+"\\"+"eng.user-patterns");
out = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream(fileDir), "UTF8"));
out.append("\\d\\d\\d\\d\\d\\d");
out.flush();
out.close();
new App().testTesseractGlobalV();
System.exit(0);
} catch(Exception e) {
e.printStackTrace();
}
}
public App() {
instance = new Tesseract1();
instance.setLanguage("eng");
instance.setDatapath(TESSDATA_PATH_FOLDER);
instance.setPageSegMode(TessPageSegMode.PSM_AUTO);
instance.setTessVariable("tessedit_char_blacklist", "èéìà§ùòç$£&%éÎÉÈ");
instance.setTessVariable("file_type", ".tiff");
List<String> configs = Arrays.asList("myconfig");
instance.setConfigs(configs);
}
public void testTesseractGlobalV() {
File samples = new File(path);
//my Verify Result
Verificator verSerieV = new Verificator();
File outputFile = null;
BufferedImage bi = null;
int imgCount = 0;
for (File imageFile : samples.listFiles()) {
System.out.println("******* IMG "+imgCount+++" ******");
try {
bi = ImageIO.read(imageFile);
verSerieV.setRegionScan(new Rectangle(verSerieV.getRegionScan().x,verSerieV.getRegionScan().y,(int)(bi.getWidth() - verSerieV.getRegionScan().x), verSerieV.getRegionScan().height));
bi = ImageHelper.getSubImage(bi, verSerieV.getRegionScan().x, verSerieV.getRegionScan().y, verSerieV.getRegionScan().width, verSerieV.getRegionScan().height);
Binirization binarization = new Binirization(bi);
binarization.DoBinirization();
BufferedImage nuovaTest = binarization.getImg();
String nameFile = imageFile.getName();
File mFile = new File(preScanPath+"\\"+nameFile);
ImageIO.write(nuovaTest,"tif", mFile);
System.out.println("scanning "+nameFile);
String result = instance.doOCR(nuovaTest); //throw java.lang.Error
...
我正在使用eclipse,maven项目:
<dependency>
<groupId>net.sourceforge.tess4j</groupId>
<artifactId>tess4j</artifactId>
<version>3.0.0</version>
</dependency>
net.sourceforge.4j
tess4j
3.0.0
您需要eng.cube.
数据文件并放入tessdata
文件夹
TESSDATA\u PATH\u文件夹
应设置为D:/compuwork/ambienti/workspace\u mars/ocrmaven/
非常感谢nguyenq
我已修复了我的TESSDATA\u PATH\u文件夹
,并从您的链接下载了一些丢失的文件eng.cube.*
它与此myconfig一起工作:
tessedit_ocr_engine_mode 1
user_words_suffix user-words
user_patterns_suffix user-patterns
并删除instance.setPageSegMode(TessPageSegMode.PSM_AUTO)代码>来自App()构造函数
相反,请使用myconfig文件进行尝试:
tessedit_ocr_engine_mode 2
load_system_dawg F
load_freq_dawg F
load_punc_dawg F
load_number_dawg F
load_unambig_dawg F
load_bigram_dawg F
load_fixed_length_dawgs F
user_words_suffix user-words
user_patterns_suffix user-patterns
tessedit_ocr_engine_mode 1
load_system_dawg F
load_freq_dawg F
load_punc_dawg F
load_number_dawg F
load_unambig_dawg F
load_bigram_dawg F
load_fixed_length_dawgs F
user_words_suffix user-words
user_patterns_suffix user-patterns
从App()构造函数中删除instance.setPageSegMode(TessPageSegMode.PSM_AUTO)
,我有以下例外:
Exception in thread "main" java.lang.Error: Invalid memory access
at net.sourceforge.tess4j.TessAPI1.TessBaseAPIGetUTF8Text(Native Method)
at net.sourceforge.tess4j.Tesseract1.getOCRText(Tesseract1.java:402)
at net.sourceforge.tess4j.Tesseract1.doOCR(Tesseract1.java:258)
at net.sourceforge.tess4j.Tesseract1.doOCR(Tesseract1.java:231)
at net.sourceforge.tess4j.Tesseract1.doOCR(Tesseract1.java:212)
at net.sourceforge.tess4j.Tesseract1.doOCR(Tesseract1.java:196)
at tess4j.example.TestP.verify(TestP.java:96)
at tess4j.example.App.main(App.java:77)
再次检查数据路径。“无效内存访问”通常与Tesseract无法找到其TesserData
文件夹有关。一些用户还报告他们的图像有时会导致该问题。在这种情况下,需要进行图像处理。