Input training data is here: tif box
After running the program, the output is:
[mhill@mhill-linux z]$ ./tesseract_z_test
Z : 95.4505
symbol Z, conf: 95.450462 font: netherlands (index 1) size 53px - Z conf: 95.450462
- N conf: 91.517166
- 2 conf: 86.062859
- M conf: 81.259239
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Z and 2 characters are not expected, it makes me wonder if the character is rotated when analyzed.