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image processing to improve tesseract OCR accuracy
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110
fix DPI (if needed) 300 DPI is minimum
fix text size (e.g. 12 pt should be ok)
try to fix text ...
How to limit depth for recursive file list?
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509
Checkout the -maxdepth flag of find
find . -maxdepth 1 -type d -exec ls -ld "{}" \;
Here I u...
How to list of all the tables defined for the database when using active record?
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answered Oct 1 '08 at 0:34
François BeausoleilFrançois Beausoleil
15.2k1111 gold badges6262 silver badges8282 bronze badges
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npm install from Git in a specific version
...t;, such as a tag, at the end as a URL fragment.
Example, for a tag named 0.3.1:
"dependencies": {
"myprivatemodule": "git@github.com:...#0.3.1"
}
Note: The above snippet shows the base URL the same as it was posted in the question.
The snipped portion (...) should be filled in:
"mypr...
Suppress command line output
...dout is file descriptor 1, and stderr is file descriptor 2 by convention. (0 is stdin, incidentally.) The 2>&1 copies output file descriptor 2 from the new value of 1, which was just redirected to the null device.
This syntax is (loosely) borrowed from many Unix shells, but you do have to be...
In Hibernate Validator 4.1+, what is the difference between @NotNull, @NotEmpty, and @NotBlank?
...he CharSequence, Collection, Map or Array object is not null and size > 0.
@NotBlank: The string is not null and the trimmed length is greater than zero.
To help you understand, let's look into how these constraints are defined and carried out (I'm using version 4.1):
The @NotNull constrain...
Format an Integer using Java String Format
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Use %03d in the format specifier for the integer. The 0 means that the number will be zero-filled if it is less than three (in this case) digits.
See the Formatter docs for other modifiers.
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git produces Gtk-WARNING: cannot open display
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edited Jun 27 '13 at 7:07
answered Apr 19 '13 at 12:19
J...
cannot find zip-align when publishing app
...f Android SDK Tools (23 which was released today) and SDK Platform-tools (20 which was also released today). I got an APK out of it, but if I tried to upload it to Google Play I got an error complaining that it is not zip aligned.
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How to exit a function in bash
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edited Jun 20 at 9:12
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111 silver badge
answered Aug 4 '13 at 11:12
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