For tess4j see https://github.com/nguyenq/tess4j/blob/master/src/test/java/net/sourceforge/tess4j/TessAPI1Test.java
On Sun 10 Jun, 2018, 12:51 AM Dattatraya Tembare, <[email protected]> wrote: > I have used another method, and it worked perfectly. > > public static void main(String[] args) { > String fileStr = "C:/EA/mp-out/im/1/3/1-0.png"; > File file = new File(fileStr); > //380x45+220+170 > int xsize = 0; > int ysize = 0; > BufferedImage bufImage=null; > ByteBuffer buf = null; > try { > bufImage = ImageIO.read(file); > IIOImage image=new IIOImage(bufImage,null,null); > buf = ImageIOHelper.getImageByteBuffer(image); > } catch (IOException e2) { > e2.printStackTrace(); > } > Rectangle rect = new Rectangle(220, 170, 380, 45); // define an equal or > smaller region of interest on the image > int bpp = 8; //Gray=8, RGB=24 > > Tesseract in = new ReadImageText().getTesseractInstance("C:/Program > Files (x86)/Tesseract-OCR/tessdata/", "hin"); > try { > String resultText = in.doOCR(bufImage, rect); > //in.doOCR(xsize, ysize, buf, rect, bpp); > log.info("resultText: {}", resultText); > } catch (TesseractException e) { > e.printStackTrace(); > } > } > > > On Saturday, June 9, 2018 at 3:07:02 PM UTC-4, Dattatraya Tembare wrote: >> >> I'm trying to read the text from an image at some particular location in >> an image. I have image dimensions and desired rectangle dometions. >> Here is the code implementation: >> >> public static void main(String[] args) { >> String fileStr = "C:/EA/mp-out/im/1/3/1-0.png"; >> File file = new File(fileStr); >> //380x45+220+170 >> int xsize = 0; >> int ysize = 0; >> BufferedImage bufImage; >> ByteBuffer buf = null; >> try { >> bufImage = ImageIO.read(file); >> IIOImage image=new IIOImage(bufImage,null,null); >> buf = ImageIOHelper.getImageByteBuffer(image); >> } catch (IOException e2) { >> e2.printStackTrace(); >> } >> Rectangle rect = new Rectangle(0, 0, 600, 265); // define an equal or >> smaller region of interest on the image >> int bpp = 8; //Gray=8, RGB=24 >> >> Tesseract in = new ReadImageText().getTesseractInstance("C:/Program >> Files (x86)/Tesseract-OCR/tessdata/", "hin"); >> try { >> String resultText = in.doOCR(xsize, ysize, buf, rect, bpp); >> log.info("resultText: {}", resultText); >> } catch (TesseractException e) { >> e.printStackTrace(); >> } >> } >> >> When I have executed the code, go below error: >> >> java.lang.NullPointerException: null >> at net.sourceforge.tess4j.Tesseract.getOCRText(Tesseract.java:434) >> at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:351) >> at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:323) >> at com.ea.ocr.tesseract.ReadImageText.main(ReadImageText.java:74) >> >> Please look into it and let me know if anyone has any idea. >> > -- > You received this message because you are subscribed to the Google Groups > "tesseract-ocr" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/tesseract-ocr. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/243234f1-405a-45bb-a249-dd8eebd0e9f9%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/243234f1-405a-45bb-a249-dd8eebd0e9f9%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAG2NduUyDSJ%2BvER64TySsg82jaP-UAH1T9BX%3Db_yzJDWnRjjZg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
