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Can a for loop increment/decrement by more than one?
Are there other ways to increment a for loop in Javascript besides i++ and ++i ? For example, I want to increment by 3 instead of one.
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image processing to improve tesseract OCR accuracy
I've been using tesseract to convert documents into text. The quality of the documents ranges wildly, and I'm looking for tips on what sort of image processing might improve the results. I've noticed that text that is highly pixellated - for example that generated by fax machines - is especially di...
How to convert a std::string to const char* or char*?
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If you just want to pass a std::string to a function that needs const char* you can use
std::string str;
const char * c = str.c_str();
If you want to get a writable copy, like char *, you can do that with this:
std::string ...
How to get a pixel's x,y coordinate color from an image?
Is there any way to check if a selected(x,y) point of a PNG image is transparent?
4 Answers
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LR性能测试结果样例分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...图1- 2所示。概要中列出了场景执行情况、“Statistics Summary（统计信息摘要）”、“Transaction Summary（事务摘要）”以及“HTTP Responses Summary（HTTP响应摘要）”等。以简要的信息列出本次测试结果。
图1- 2性能测试结果摘要图
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iOS UIImagePickerController result image orientation after upload
I am testing my iPhone application on an iOS 3.1.3 iPhone. I am selecting/capturing an image using a UIImagePickerController :
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Rotating a point about another point (2D)
I'm trying to make a card game where the cards fan out. Right now to display it Im using the Allegro API which has a function:
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Extracting text OpenCV
I am trying to find the bounding boxes of text in an image and am currently using this approach:
10 Answers
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How to use the IEqualityComparer
I have some bells in my database with the same number. I want to get all of them without duplication. I created a compare class to do this work, but the execution of the function causes a big delay from the function without distinct, from 0.6 sec to 3.2 sec!
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git pull while not in a git directory
Let's say I have a directory, /X/Y , which is a git repository. Is it possible to somehow call a command like git pull from inside /X , but targeting the /X/Y directory?
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