PSB

[P]oisson[S]olver[Benchmarks].

To build:

cd build && cmake ../src && make
../bin/main

Images

To get the images:

mkdir "./media" && wget http://pascal.inrialpes.fr/data/holidays/jpg{1,2}.tar.gz && tar -xvf jpg{1,2}.tar.gz --strip-components=1 -C media

INTRODUCTION

This program will allow you to benchmark methods for solving poissons equation. In this case the input is images, and we're performing gradient field reconstruction.

The program is written in C++ for speed, however, concepts like threading and multigrids are currently avoided for ease of coding.

EDITIONS

"PSB" is a work in progress, so the structure of the code is changed from time to time. Do frequent "git pull" if you intend to use it.

PSB

• PSB keeps it simple, so you can modify the code to your needs.

LIBRARIES USED

CImg

• Open-source
• Minimalistic, only include "CImg.h"
• Lot of features

See http://cimg.sourceforge.net/

CONFIGURATION / CONTROL:

PSB is written to be operated from the command line. It will per default write to "./output" and "./log" in the ${PWD} from which it is invoked.

COMMAND SYNTAX

Please refer to the manpage in our "doc" folder, by "man -l PSB.1", or by running the compiled program with "--help".

PROGRAM SHORTCUTS

Image previews:

• Arrow UP : next image
• Arrow DOWN : previous image
• Arrow LEFT : next solver (if any)
• Arrow RIGHT : previous solver (if any)

nice_example

A set of small images, useful for debugging purposes. They are created using src/debug_tools/create_image.py

tryPlot.py

The script that does the plotting. It is currently not handling large inputs, so use with patience and little care.

BUGS

Please report new issues to the github page https://github.com/andsild/PSB/ or the developer @ andsild@gmail.com