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How can I quantify difference between two images?

...great advantage for a common situation: what if you dont want to save the "base" image? just save the filesize as a hash and then compare just numbers with substraction. In my case I have 4 images, one of them is very simillar and the others 3 are absolutely different. Just scale to the same dimensi...
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What do 'real', 'user' and 'sys' mean in the output of time(1)?

...e <stdio.h> #include <stdlib.h> #include <unistd.h> uint64_t niters; void* my_thread(void *arg) { uint64_t *argument, i, result; argument = (uint64_t *)arg; result = *argument; for (i = 0; i < niters; ++i) { result = (result * result) - (3 * result) + 1...
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Pointers vs. values in parameters and return values

...llers. It's not always practical follow that pattern. Some tools like database interfaces or serializers need to append to a slice whose type isn't known at compile time. They sometimes accept a pointer to a slice in an interface{} parameter. Maps, channels, strings, and function and interface va...
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What is RSS and VSZ in Linux memory management

...; } int main(int argc, char **argv) { ProcStatm proc_statm; char *base, *p; char system_cmd[1024]; long page_size; size_t i, nbytes, print_interval, bytes_since_last_print; int snprintf_return; /* Decide how many ints to allocate. */ if (argc < 2) { nbyte...
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After Installing Java JDK 7 For Mac OS X - mvn -version still shows java version 1.6.0_31

... Mahmoud AdamMahmoud Adam 5,26455 gold badges3333 silver badges5959 bronze badges ...
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Disable Interpolation when Scaling a

...up citing this question in his research). See Simon's answer for a canvas-based solution that relies on the imageSmoothingEnabled property (not available in older browsers, but simpler than pre-scaling and pretty widely-supported). Live Demo If you'd like to test the CSS properties discussed in t...
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Is there a way to crack the password on an Excel VBA Project?

... Excel 2013 - 32 bit version Excel 2016 - 32 bit version Looking for 64 bit version? See this answer How it works I will try my best to explain how it works - please excuse my English. The VBE will call a system function to create the password dialog box. If user enters the right passwor...
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Test whether string is a valid integer

... Additionally, based on character collation (see this related question/answer) something like d[g-i]{2} could end up not only matching dig but also dish in the collation suggested by that answer (where the sh digraph is considered a single ...
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Understanding MongoDB BSON Document size limit

.... You can use this method to store images, files, videos, etc in the database much as you might in a SQL database. I have used this to even store multi gigabyte video files. share | improve this a...
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Generate an integer that is not among four billion given ones

...Monicahmakholm left over Monica 21.3k22 gold badges4646 silver badges7171 bronze badges 24 ...