Nikita Kovalenko Xonxt
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| def flat_map(iterable: list, map_function=None): | |
| """Applies a `map_function` to every element of the `iterable` input list | |
| and then flattens all the results into a new list | |
| Args: | |
| iterable (list): An input list | |
| map_function (callable, optional): A function that is applied to every element of the input list. Defaults to None. | |
| Returns: | |
| list: A new list |
Xonxt
/ mpi_opencv_image_processing.cpp
Last active
April 12, 2023 18:25
This is an example of using the MPI interface to parallelise basic image processing. An image is loaded with OpenCV and then distributed between several processes using MPI_Scatter. A simple example of image-partition processing is given. The image parts are then gathered into one final image using MPI_Gather.
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| #include <iostream> | |
| #include "mpi.h" | |
| #include "opencv2/opencv.hpp" | |
| int main(int argc, char** argv) | |
| { | |
| // the input image | |
| cv::Mat image; |
Xonxt
/ opencv_text_rendering.py
Last active
October 6, 2020 20:44
A function, that allows more flexibility when rendering text with OpenCV in Python. You can add text outline, draw a list of strings with just one call, and even align the text block horizontally or vertically relative to an anchor point.
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| import numpy as np | |
| import cv2 | |
| from enum import Enum | |
| class Align(Enum): | |
| LEFT = 0 | |
| CENTER = 1 | |
| RIGHT = 2 | |
| class Valign(Enum): |
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| /* | |
| This requires adding the "include" directory of your Python installation to the include diretories | |
| of your project, e.g., in Visual Studio you'd add `C:\Program Files\Python36\include`. | |
| You also need to add the 'include' directory of your NumPy package, e.g. | |
| `C:\Program Files\PythonXX\Lib\site-packages\numpy\core\include`. | |
| Additionally, you need to link your "python3#.lib" library, e.g. `C:\Program Files\Python3X\libs\python3X.lib`. | |
| */ | |
| // python bindings |