Zdeny's shenanigans 🪐

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Semi-random funky stuff, mainly for my PhD experiments and articles. Contains calculations and algorithm implementations for various applied mathematics and astrophysics articles I worked on - Solar Dynamics Observatory image processing, sub-pixel image registration, non-convex optimization. Written in C++20, with C++ ImGui GUI and ImPlot / pybind11+matplotlib plots. Uses OpenCV, OpenMP, OpenGL, cuda, matplotlib, torch, astropy, spdlog, flamegraph, fmt, googletest, json, optick, pybind11, QCustomPlot, tracy, glad, GLFW, ImGui, and others. Examples below.

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📃Article links

• 📌 Iterative Phase Correlation Algorithm for High-precision Subpixel Image Registration
• 🪐 Measuring Solar Differential Rotation with an Iterative Phase Correlation Method

🚀The ImGui+ImPlot GUI

<img src="data/readme/gui.png" width="100%">

🔎Subpixel shift / rotation / scale image registration of dissimilar images via Iterative Phase Correlation

<img src="data/readme/align.png" width="100%">

☀️Solar photosphere differential rotation measurements from SDO/HMI continuum images

<img src="data/readme/diffrot.png" width="100%">

📉Visualization of optimizer progress on a given objective function landscape

<img src="data/readme/rosenbrock_paths.png" width="100%">

📈Visualization of meta-optimizer progress and optimization improvement on a given meta-objective function landscape

<img src="data/readme/metaopt_paths.png" width="100%">

📊Adaptive histogram equalization

<img src="data/readme/aheq.PNG" width="100%">

⌚Profiling with Tracy

• install the required libraries sudo apt -y install libglfw3-dev libgtk-3-dev libcapstone-dev libtbb-dev
• build the profiler via make release -j12 in ./libs/tracy/profiler/build/unix/
• run the app with ENABLE_PROFILING defined
• run script/perf/tracy.sh or ./libs/tracy/profiler/build/unix/Tracy-release and click connect
• save the trace file if needed <img src="data/readme/tracy.png" width="100%">