During Tesseract box file training, I found the need to write a script to shift some of the boxes. I opened a box file to determine which column corresponds to X/Y/W/H, and discovered a fifth column. The Tesseract wiki doesn't offer any explanations, and the example given in the "Make Box Files" section only contains zeros in the fifth column. My trained file contains other symbols. For example, these are some of the symbols I found: [":,}'4.*<&\;\|]. What do these mean?
You probably meant the sixth or last column, which represents the page number (see Training wiki). It sounds like your box file was not correctly generated.
If I remember correctly, the fifth column is for a whitelist of characters. That way you can specify digits-only for one region, while another is for text.
Tesseract will recognize only symbols from the whitelist for a given region.
Related
I am trying to train tesseract to recognize a new font and was wondering how many words I would need to put into the txt file to increase its accuracy. For example, fo I put in just a couple of words but with different combinations or up to 10,000+ words?
See Prepare a text file section of Training Tesseract 3.03–3.05 page.
How does the box file need to look like if I use a multipage tiff to train Tesseract?
More precisely: how do the Y-coordinates of a box file correspond to Y-coordinates within pages?
The last, 6th column in the box file represents zero-based page number.
https://github.com/tesseract-ocr/tesseract/wiki/Make-Box-Files
Update:
https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract
Each font should be put in a single multi-page tiff and the box file
can be modified to specify the page number for each character after
the coordinates. Thus an arbitrarily large amount of training data may
be created for any given font, allowing training for large
character-set languages.
Even if you can have as large training text as you want, it could potentially result in unnecessarily large image and hence slow down training.
I have a Qlik Sense chart with one Dimension and one measure. the numbers I got from the measure is (99,999861) I need a custom format pattern to have the numbers like 99,99 %.
click edit, choose the chart, open the data tab, expand the measure, under number formatting select custom. Format pattern would be something like this.
#,##0.00%
Here's the syntax: https://help.qlik.com/en-US/sense/November2018/Subsystems/Hub/Content/Sense_Hub/Introduction/conventions-number-time-formats.htm
A few specifics from that page:
To denote a specific number of digits, use the symbol "0" for each digit.
To denote a possible digit to the left of the decimal point, use the symbol "#".
To mark the position of the thousands separator or the decimal separator, use the applicable thousands separator and the decimal separator.
I want to generate an output for my correlation table so I can use it in Word. The only command I found is mkcorr, which only generates an output I can copy in Excel, but not in Word.
I need a correlation table in Paper style ( with means, standard deviation, correlation and significance label).
You can do this with estout/esttab/estpost after installing it:
capture ssc install estout
sysuse auto
estpost correlate price mpg weight
esttab using corr.rtf
This is pretty basic looking, but you can make it a lot more fancy after looking at some examples here.
Two things:
First, the help file of mkcorr says that you can produce the output in Word:
"mkcorr produces a correlation table in a format that is easy to import into a
spreadsheet or word processing document"
Second, mkcorr does what you want. It includes means, standard deviation, correlation and significance label (and also minimum and maximum).
Here is an example:
sysuse auto
mkcorr price mpg, log(C:\Users\Vista\Desktop\auto.doc) replace means sig cdec(2) mdec(2)
However, the output in Word needs some manipulation compared with that in Excel.
I'm running a series of scripts that all import data from different matrix files. It seems that displaying the content of the matrix is taking a lot of time. Normally I would do "more on" and just cancel the display after the first page, but I am doing things automatically here, from the command-line version.
Is there a way to stop Matlab from displaying the content of variables when it loads them? Say, a non-verbose/daemon mode? I couldn't find a way to do it when I searched, but I'm sure there must be one.
Thanks in advance!
Found it! The answer is to add a semicolon (;) at the end of the line, for example:
m=importdata('matrix.txt');
This will prevent it from printing the contents of m.