我在Mac OS上工作,使用tesseract进行OCR。
我用自制软件安装了tesseract。
tesseract适用于命令行,java程序适用于Tesseract.getInstance()的基本示例。
但是因为我想获得每个字符的置信度值,所以我切换到使用TessAPI1并出现以下错误:
Exception in thread "main" java.lang.UnsatisfiedLinkError: Error looking up function 'TessResultRendererAddError': dlsym(0x7f9df9c38c20, TessResultRendererAddError): symbol not found
at com.sun.jna.Function.<init>(Function.java:208)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:536)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:513)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:499)
at com.sun.jna.Native.register(Native.java:1509)
at com.sun.jna.Native.register(Native.java:1396)
at com.sun.jna.Native.register(Native.java:1156)
at net.sourceforge.tess4j.TessAPI1.<clinit>(Unknown Source)
at TesseractWrapper.doOCR(TesseractWrapper.java:71)
at OCR.main(OCR.java:6)
错误发生在
handle = TessAPI1.TessBaseAPICreate();
代码如下所示:
TessAPI1.TessBaseAPI handle;
handle = TessAPI1.TessBaseAPICreate();
new File(this.path);
BufferedImage image = ImageIO.read(
new FileInputStream(tiff)); // require jai-imageio lib to read TIFF
ByteBuffer buf = ImageIOHelper.convertImageData(image);
int bpp = image.getColorModel().getPixelSize();
int bytespp = bpp / 8;
int bytespl = (int) Math.ceil(image.getWidth() * bpp / 8.0);
TessAPI1.TessBaseAPIInit3(handle,
"tessdata", lang);
TessAPI1.TessBaseAPISetPageSegMode(handle, TessAPI1.TessPageSegMode.
PSM_AUTO);
TessAPI1.TessBaseAPISetImage(handle, buf, image.getWidth(), image.getHeight(), bytespp, bytespl);
TessAPI1.TessBaseAPIRecognize(handle,
null);
TessAPI1.TessResultIterator ri = TessAPI1.TessBaseAPIGetIterator(handle);
TessAPI1.TessPageIterator pi = TessAPI1.TessResultIteratorGetPageIterator(ri);
TessAPI1.TessPageIteratorBegin(pi);
我从其他一些问题中找到了这段代码,我想我需要的是获取和## iterator&#39;然后我可以逐个获得具有置信度值的角色。