Tess4J returns wrong font type

[Mustak M]

I am using Java wrapper Tess4J. Using following code to retrieve the font type and font size from an image.  The image contains "Arial" font text and font size is 48.  The code is returning font type as

font: DejaVu_Sans_Ultra-Light, size: 13

 

Code:

public

static void testResultIterator() throws Exception {

String datapath =

"tessdata";

String language =

"eng";

String expOCRResult =

"The (quick) [brown] {fox} jumps!\nOver the $43,456.78 <lazy> #90 dog";

TessAPI1.TessBaseAPI handle;

handle = TessAPI1.TessBaseAPICreate();

System.

out.println("TessBaseAPIGetIterator");

String lang =

"eng";

File tiff =

new File("C:\\1\\CaptureArial.JPG");

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);

System.

out.println("Bounding boxes:\nchar(s) left top right bottom confidence font-attributes");

// int height = image.getHeight();

do {

Pointer ptr = TessAPI1.TessResultIteratorGetUTF8Text(ri, TessAPI1.TessPageIteratorLevel.

RIL_WORD);

String word = ptr.getString(0);

TessAPI1.TessDeleteText(ptr);

float confidence = TessAPI1.TessResultIteratorConfidence(ri, TessAPI1.TessPageIteratorLevel.RIL_WORD);

IntBuffer leftB = IntBuffer.allocate(1);

IntBuffer topB = IntBuffer.allocate(1);

IntBuffer rightB = IntBuffer.allocate(1);

IntBuffer bottomB = IntBuffer.allocate(1);

TessAPI1.TessPageIteratorBoundingBox(pi, TessAPI1.TessPageIteratorLevel.

RIL_WORD, leftB, topB, rightB, bottomB);

int left = leftB.get();

int top = topB.get();

int right = rightB.get();

int bottom = bottomB.get();

System.

out.print(String.format("%s %d %d %d %d %f", word, left, top, right, bottom, confidence));

// System.out.println(String.format("%s %d %d %d %d", str, left, height - bottom, right, height - top)); // training box coordinates

IntBuffer boldB = IntBuffer.allocate(1);

IntBuffer italicB = IntBuffer.allocate(1);

IntBuffer underlinedB = IntBuffer.allocate(1);

IntBuffer monospaceB = IntBuffer.allocate(1);

IntBuffer serifB = IntBuffer.allocate(1);

IntBuffer smallcapsB = IntBuffer.allocate(1);

IntBuffer pointSizeB = IntBuffer.allocate(1);

IntBuffer fontIdB = IntBuffer.allocate(1);

String fontName = TessAPI1.TessResultIteratorWordFontAttributes(ri, boldB, italicB, underlinedB,

monospaceB, serifB, smallcapsB, pointSizeB, fontIdB);

boolean bold = boldB.get() == TessAPI1.TRUE;

boolean italic = italicB.get() == TessAPI1.TRUE;

boolean underlined = underlinedB.get() == TessAPI1.TRUE;

boolean monospace = monospaceB.get() == TessAPI1.TRUE;

boolean serif = serifB.get() == TessAPI1.TRUE;

boolean smallcaps = smallcapsB.get() == TessAPI1.TRUE;

int pointSize = pointSizeB.get();

int fontId = fontIdB.get();

System.

out.println(String.format(" font: %s, size: %d, font id: %d, bold: %b," +

" italic: %b, underlined: %b, monospace: %b, serif: %b, smallcap: %b",

fontName, pointSize, fontId, bold, italic, underlined, monospace, serif, smallcaps));

}

while (TessAPI1.TessPageIteratorNext(pi, TessAPI1.TessPageIteratorLevel.RIL_WORD) == TessAPI1.TRUE);

}

---------

Its the same code refered from

http://sourceforge.net/p/tess4j/code/HEAD/tree/Tess4J_3/trunk/test/net/sourceforge/tess4j/TessAPI1Test.java#l447

----

Any thoughts !

Image file attached for reference.

 

Thanks

 

 

[Quan Nguyen]

They look alike.

http://www.fonts2u.com/dejavu-sans-extralight.font
http://www.fontsaddict.com/font/dejavu-sans-extralight.html