zdenyhraz / shenanigans

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.

Zdeny's shenanigans 🪐

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. Examples below.

📃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

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

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

📉Visualization of optimizer progress on a given objective function landscape

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

📊Adaptive histogram equalization

⌚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