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  2. Connected-component labeling - Wikipedia

    en.wikipedia.org/wiki/Connected-component_labeling

    Set the corresponding pixel to 0 in Image. A vector (Index) is updated with all the neighboring pixels of the currently set pixels. Unique pixels are retained and repeated pixels are removed. Set the pixels indicated by Index to mark in the connected-component matrix. Increment the marker for another object in the image.

  3. Boolean operations on polygons - Wikipedia

    en.wikipedia.org/wiki/Boolean_operations_on_polygons

    Klamer Schutte's Clippoly, a polygon clipper written in C++. Michael Leonov's poly_Boolean, a C++ library, which extends the Schutte algorithm. Angus Johnson's Clipper, an open-source freeware library (written in Delphi, C++ and C#) that's based on the Vatti algorithm. clipper2 crate, a safe Rust wrapper for Angus Johnson's Clipper2 library.

  4. Maximally stable extremal regions - Wikipedia

    en.wikipedia.org/wiki/Maximally_stable_extremal...

    These 'black' spots will eventually merge, until the whole image is black. The set of all connected components in the sequence is the set of all extremal regions. In that sense, the concept of MSER is linked to the one of component tree of the image. [2] The component tree indeed provide an easy way for implementing MSER. [3]

  5. Bit blit - Wikipedia

    en.wikipedia.org/wiki/Bit_blit

    In this example a background image, a sprite, and a 1-bit mask are used. As the mask is 1-bit, there is no possibility for partial transparency via alpha blending . A loop that examines each bit in the mask and copies the pixel from the sprite only if the mask is set will be much slower than hardware that can apply exactly the same operation to ...

  6. Sequence container (C++) - Wikipedia

    en.wikipedia.org/wiki/Sequence_container_(C++)

    [10] [11] vector<bool> does not meet the requirements for a C++ Standard Library container. For instance, a container<T>::reference must be a true lvalue of type T. This is not the case with vector<bool>::reference, which is a proxy class convertible to bool. [12] Similarly, the vector<bool>::iterator does not yield a bool& when dereferenced.

  7. k-way merge algorithm - Wikipedia

    en.wikipedia.org/wiki/K-way_merge_algorithm

    Merge these n arrays with the k-way merge algorithm. The resulting array is sorted and the algorithm has a running time in O ( n f( n )). This is a contradiction to the well-known result that no comparison-based sorting algorithm with a worst case running time below O ( n log n ) exists.

  8. Conflict-free replicated data type - Wikipedia

    en.wikipedia.org/wiki/Conflict-free_replicated...

    State-based CRDTs (also called convergent replicated data types, or CvRDTs) are defined by two types, a type for local states and a type for actions on the state, together with three functions: A function to produce an initial state, a merge function of states, and a function to apply an action to update a state.

  9. Merge sort - Wikipedia

    en.wikipedia.org/wiki/Merge_sort

    In computer science, merge sort (also commonly spelled as mergesort and as merge-sort [2]) is an efficient, general-purpose, and comparison-based sorting algorithm.Most implementations produce a stable sort, which means that the relative order of equal elements is the same in the input and output.