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How can I sharpen an image in OpenCV?

... Wikipedia article on unsharp masking: You use a Gaussian smoothing filter and subtract the smoothed version from the original image (in a weighted way so the values of a constant area remain constant). To get a sharpened version of frame into image: (both cv::Mat) cv::GaussianBlur(frame, image, cv:...
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Add vertical whitespace using Twitter Bootstrap?

...ion in them. This is because those classes are applied from min-width: 0 and up, and thus are not bound by a media query. The remaining breakpoints, however, do include a breakpoint abbreviation. The classes are named using the format {property}{sides}-{size} for xs and {property}{sides...
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What are the differences between Helper and Utility classes?

...ts more common. A Utility class is understood to only have static methods and be stateless. You would not create an instance of such a class. A Helper can be a utility class or it can be stateful or require an instance be created. I would avoid this if possible. If you can make the name more spe...
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Eclipse - “Workspace in use or cannot be created, chose a different one.” [duplicate]

... workspace between users. The problem is that after I create the workspace and change the permission on it, I encounter the error below (image) without even switching to a different user. ...
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What does the smiley face “:)” mean in CSS?

... From an article at javascriptkit.com, that's applied for IE 7 and earlier versions: if you add a non-alphanumeric character such as an asterisk (*) immediately before a property name, the property will be applied in IE and not in other browsers. Also there's a hack for <= IE 8:...
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How to disable scrolling temporarily?

I'm using the scrollTo jQuery plugin and would like to know if it is somehow possible to temporarily disable scrolling on the window element through Javascript? The reason I'd like to disable scrolling is that when you scroll while scrollTo is animating, it gets really ugly ;) ...
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See my work log in jira

... We are using the Timesheet Reports and Gadgets Add-On for JIRA. It's available on the Atlassian Marketplace under a BSD licence, but it's not free. On our JIRA 5.0.x server, it was accessible from the Projects tab > Summary page > Reports drop-down list...
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Android Studio: how to attach Android SDK sources?

How can I attach Android SDK sources to Android Studio? 16 Answers 16 ...
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The target … overrides the `OTHER_LDFLAGS` build setting defined in `Pods/Pods.xcconfig

...uses a header file from Proj.4 , just one header. Both are Xcode projects and have static targets. 10 Answers ...
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The new keyword “auto”; When should it be used to declare a variable type? [duplicate]

Have we (as a community) had enough experience to determine when and/or whether auto is being abused? 6 Answers ...