Automatically Controlled Morphing of 2D Shapes with Textures

published on January 2020, SIAM Journal on Imaging Sciences 13(1):78-107

SIAM SIIMS: https://epubs.siam.org/doi/10.1137/19M1241581

ResearchGate: https://www.researchgate.net/publication/339050410_Automatically_Controlled_Morphing_of_2D_Shapes_with_Textures

Status: Finished

A short description of the project

This repository presents an implementation of a novel method for morphing between two topologically arbitrary 2D shapes converted to Signed Distance Fields (SDFs) with sophisticated textures (raster colour attributes) using a metamorphosis technique called Space-Time Blending (STB) coupled with Space-Time Transfinite Interpolation (STTI). The method allows for a smooth transition between source and target objects with generating in-between shapes and associated textures without setting any correspondences between boundary points or features.

Requirements

• Windows / Linux / MacOS (not tested)
• Qt Creator & Cmake
• OpenCV: https://opencv.org/
• GLM: https://glm.g-truc.net/0.9.9/index.html
• Geometric tools [for convenience headers are included in the repository]: https://www.geometrictools.com/
• SFML: https://www.sfml-dev.org/
• OpenMP [optional fot better performance]: https://www.openmp.org/

Other libraries essential to build these libraries should be manually resolved

Input for the sample

• '-im1' - specify input image \n";
• '-im2' - specify target image \n";
• '-d' - specify draw mode [white, blend, closest] \n";
• '-c' - specify colour mode [rgb, hsv, lab] \n";
• '--bsolid' - specify bounding solid type [halfPlanes, trPyramid, trCone]\n";
• '-s' - specify the scale for the picture [optional] \n";
• '-n' - specify the number of output frames \n"; recomended: if bounding solid = 'truncated cone', n = 150+.\n\n";
• '-o' - specify output path [optional] \n";
• '--affine' - set to enable affine transform to the target image 'im2; \n";
• '--back' - specify image for background [optional] \n";
• '--help' - output help\n" << std::endl;

The presented code is free to use.

@CopyRight by Alexander Tereshin