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Simple Digit Recognition OCR in OpenCV-Python
...rse, not so clean):
import sys
import numpy as np
import cv2
im = cv2.imread('pitrain.png')
im3 = im.copy()
gray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)
blur = cv2.GaussianBlur(gray,(5,5),0)
thresh = cv2.adaptiveThreshold(blur,255,1,1,11,2)
################# Now finding Contours ####...
How do I read the contents of a Node.js stream into a string variable?
...what do you want me to do?)
The key is to use the data and end events of a Readable Stream. Listen to these events:
stream.on('data', (chunk) => { ... });
stream.on('end', () => { ... });
When you receive the data event, add the new chunk of data to a Buffer created to collect the data.
When ...
How to iterate through all git branches using bash script
...)
return $( test -n "${HIST_DIFF}" )
}
print_different_branches () {
read -r -a ARGS <<< "${@}"
LOCAL=${ARGS[-1]?}
for REMOTE in "${SOME_REMOTE_BRANCHES[@]}"; do
if has_different_history "${LOCAL}" "${REMOTE}"; then
# { echo; echo; get_history_differences "${LOCAL}" "${R...
Web scraping with Python [closed]
... BeautifulSoup
soup = BeautifulSoup(urllib2.urlopen('http://example.com').read())
for row in soup('table', {'class': 'spad'})[0].tbody('tr'):
tds = row('td')
print tds[0].string, tds[1].string
# will print date and sunrise
...
send/post xml file using curl command line
...ser:pass@myhost:myport/path/of/url
You need to change it a little bit to read from a file:
$ curl -X POST -d @myfilename http://user:pass@myhost:myport/path/of/url
Read the manpage. following an abstract for -d Parameter.
-d/--data
(HTTP) Sends the specified data in a
POST request ...
One SVN repository or many?
...e a TAG
Commit messages are easily filtered by path in the repository, so reading only those related to a particular project is a trivial exercise.
Edit: See Blade's response for details on using a single authorization/authentication configuration for SVN.
...
我帮儿子用App Inventor 2给遥控车装了"蓝牙大脑"，手机一划车就...
...：
if (Serial.available() >= 4) {
byte speed = Serial.read();
byte steer = Serial.read();
byte checksum = Serial.read();
byte footer = Serial.read();
if (footer == 0xFF && (speed ^ steer) == checksum) {
an...
How do you get a list of the names of all files present in a directory in Node.js?
...
You can use the fs.readdir or fs.readdirSync methods.
fs.readdir
const testFolder = './tests/';
const fs = require('fs');
fs.readdir(testFolder, (err, files) => {
files.forEach(file => {
console.log(file);
});
});
fs.readdirS...
Autoincrement VersionCode with gradle extra properties
... I used the Manifest file to increase the versionCode, but I would like to read the versionCode from an external file and depending if it is the release flavor or the debug flavor increase the versionCode. I tried the extra properties, but you can't save them, which means that next time I build it I...
How to replace spaces in file names using a bash script
... rename (aka prename) which is a Perl script which may be on your system already. Do it in two steps:
find -name "* *" -type d | rename 's/ /_/g' # do the directories first
find -name "* *" -type f | rename 's/ /_/g'
Based on Jürgen's answer and able to handle multiple layers of files and dir...