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Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition
...ne of the feature descriptors can differentiate bottles from a cans.. They all just view invariant local pattern descriptors. I agree that SIFT,SURF,ORB,FREAK etc. can help you in feature matching but.. What about your other parts of the question like occlusions, Bottle vs Can etc. I hope this is no...
Should the hash code of null always be zero, in .NET
...code.
Returning 0 or -1 for null, so long as you choose one and return it all the time, will work. Obviously, non-null hash codes should not return whatever value you use for null.
Similar questions:
GetHashCode on null fields?
What should GetHashCode return when object's identifier is null?
Th...
jQuery .ready in a dynamically inserted iframe
We are using jQuery thickbox to dynamically display an iframe when someone clicks on a picture. In this iframe, we are using galleria a javascript library to display multiple pictures.
...
How to delete an old/unused Data Model Version in Xcode
...d the .xcdatamodeld file to your project
This eliminates the need to manually modify any of the project metadata files.
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Android emulator doesn't take keyboard input - SDK tools rev 20
.../managing-avds-cmdline.html#hardwareopts
On Mac OS and Linux you can edit all of your emulator configurations with one Terminal command:
for f in ~/.android/avd/*.avd/config.ini; do echo 'hw.keyboard=yes' >> "$f"; done
On a related note, if your tablet emulator is missing the BACK/HOME bu...
How to remove an HTML element using Javascript?
...em);
return false;
}
But you don't need (or want) a form for that at all, not if its sole purpose is to remove the dummy div. Instead:
HTML:
<input type="button" value="Remove DUMMY" onclick="removeDummy()" />
JavaScript:
function removeDummy() {
var elem = document.getElementBy...
Why is SELECT * considered harmful?
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There are really three major reasons:
Inefficiency in moving data to the consumer. When you SELECT *, you're often retrieving more columns from the database than your application really needs to function. This causes more data to mov...
C# vs C - Big performance difference
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Since you never use 'root', the compiler may have been removing the call to optimize your method.
You could try to accumulate the square root values into an accumulator, print it out at the end of the method, and see what's going on.
Edit : see Jalf's answer below
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Django-DB-Migrations: cannot ALTER TABLE because it has pending trigger events
...son for this maybe because you try to set a column to NOT NULL when it actually already has NULL values.
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What goes into the “Controller” in “MVC”?
... "user clicked the 'delete this item' button" in the interface should basically just call the controller's "delete" function. The controller, however, has no idea what the view looks like, and so your view must collect some information such as, "which item was clicked?"
In a conversation form:
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