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How to crop an image in OpenCV using Python
...emory waste.
Suppose you load N images each is >1MP and you need only 100x100 region from the upper left corner.
Slicing:
X = []
for i in range(N):
im = imread('image_i')
X.append(im[0:100,0:100]) # This will keep all N images in the memory.
# Because t...
How to get overall CPU usage (e.g. 57%) on Linux [closed]
...ake a look at cat /proc/stat
grep 'cpu ' /proc/stat | awk '{usage=($2+$4)*100/($2+$4+$5)} END {print usage "%"}'
EDIT please read comments before copy-paste this or using this for any serious work. This was not tested nor used, it's an idea for people who do not want to install a utility or for s...
Adding information to an exception?
...d:
2017-09-06 16:50:14,797 [ERROR] django.request: Internal Server Error: /v1/sendEmail/
Traceback (most recent call last):
File "venv/lib/python3.4/site-packages/rest_framework/views.py", line 275, in get_permissions
return [permission() for permission in self.permission_classes]
TypeError: 'ty...
How can I custom-format the Autocomplete plug-in results?
... if you monkey-patch autocomplete.
In the autocomplete widget included in v1.8rc3 of jQuery UI, the popup of suggestions is created in the _renderMenu function of the autocomplete widget. This function is defined like this:
_renderMenu: function( ul, items ) {
var self = this;
$.each( it...
Pass in an array of Deferreds to $.when()
...alCity) {
return $.ajax({
url: 'https://restcountries.eu/rest/v1/capital/'+capitalCity,
success: function(response) {
},
error: function(response) {
console.log("Error")
}
});
}
$(function(){
var capitalCities = ['Delhi', 'Beijin...
SVN upgrade working copy
... higher than the version in netbeans. In my case Netbeans (v7.3.1) had SVN v1.7 and I'd just upgraded my SVN to v1.8.
If you look in Tools > Options > Miscellaneous (tab) > Versioning (tab) > Subversion (pane), set the Preferred Client = CLI, then you can set the path the the installed...
Matplotlib (pyplot) savefig outputs blank image
...ated. To deal with this, you can
Call plt.savefig('tessstttyyy.png', dpi=100) before you call plt.show()
Save the figure before you show() by calling plt.gcf() for "get current figure", then you can call savefig() on this Figure object at any time.
For example:
fig1 = plt.gcf()
plt.show()
plt....
Correct use of Multimapping in Dapper
...s not case sensitive, and it also trims the text for the splitOn - this is v1.50.2.0 of dapper.
– Harag
May 26 '17 at 13:30
2
...
Best dynamic JavaScript/JQuery Grid [closed]
...f you search the web for that sentence, you'll find "The biggest change in v1.4 is the non-destructive DOM interaction. What this means is that DataTables will not overwrite the table elements in order to perform it's functions (true progressive enhancement!), rather it moves the elements around. In...
一款IP：端口监控工具 服务器端口监控工具[附源码] - C++ UI - 清泛IT社区...
TradeMonitor v1.0
功能介绍：
监控ip:port，类似于telnet命令。
界面清晰简洁，异常连接的情况一目了然。
支持添加、编辑、删除、移动ip:port组合，可监控多组，支持ip:port备注。
支持自动刷新，刷新间隔可配置，同时也可手动刷...