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Is there a way to detect if an image is blurry?
...at representing the blurryness of a given image, you have to work out a suitable metric.
nikie's answer provide such a metric. Convolve the image with a Laplacian kernel:
1
1 -4 1
1
And use a robust maximum metric on the output to get a number which you can use for thresholding. Try to a...
How do I integrate Ajax with Django applications?
...lly, with ajax it is failing. With ajax, I am able to save only the header table data. But when I am trying to save child table data also, it is failing with error 400 (Bad request). Tried PDB but could not resolve it.
– shaan
Jul 15 at 6:28
...
Imply bit with constant 1 or 0 in SQL Server
...ared variables? What if you want to use this in a VIEW or single-statement table-valued UDF?
– Dai
Sep 3 at 2:17
@Dai ...
完美解决phpcms批量移动内容后，新闻心情、评论排行等不更新的问题 - 更多...
...{
$this->comment_data_db->table_name($comment['tableid']);
$this->comment_data_db->update(array('commentid'=>$newcommentid), array('commentid'=>$commentid));
}
...
SPAN vs DIV (inline-block)
...strong and em, can only contain other phrasing elements: you can’t put a table inside a cite for instance. Most flow content such as div and li can contain all types of flow content (as well as phrasing content), but there are a few exceptions: p, pre, and th are examples of non-phrasing flow cont...
Difference between sh and bash
.../sh could be a symbolic link or a hard link.
If it's a symbolic link, a portable way to resolve it is:
% file -h /bin/sh
/bin/sh: symbolic link to bash
If it's a hard link, try
% find -L /bin -samefile /bin/sh
/bin/sh
/bin/bash
In fact, the -L flag covers both symlinks and hardlinks,
but the d...
How to select date without time in SQL
...
I have same error when i use select convert (table.order_date , getdate()); sql server version 2017 , the error (Type date is not a defined system type) the column type datetime
– Abdullah
May 27 at 11:43
...
Accessing Object Memory Address
...s have different kinds of id, but the most general is just an index into a table of objects you've called id on, which is obviously not going to be a pointer. I'm not sure about IronPython, but I'd suspect it's more like Jython than like CPython in this regard. So, in most Python implementations, th...
Why do we need entity objects? [closed]
... terms of Customers, Orders and Items, not a technology like DataSets, DataTables and DataRows...cuz who knows how long those will be around.
I agree that there is always a certain amount of coupling, but I prefer that coupling to reach upwards rather than downwards. I can tweak the limbs and le...
What is Domain Driven Design?
... these requirements with considering the relationships between classes and tables and in fact their design were based on database tables relationships it is not old but it has some problems:
In big projects with complex requirements it is not useful although this is a great way of design for smal...