Image Processing On Line

IPOL is a research journal of image processing and image analysis which emphasizes the role of mathematics as a source for algorithm design and the reproducibility of the research. Each article contains a text on an algorithm and its source code, with an online demonstration facility and an archive of experiments. Text and source code are peer-reviewed and the demonstration is controlled. IPOL is an Open Science and Reproducible Research journal.

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Latest Articles

Efficient Large-scale Image Search With a Vocabulary Tree
2018-06-03 · Esteban Uriza, Francisco Gómez Fernández, Martín Rais
A MATLAB SMO Implementation to Train a SVM Classifier: Application to Multi-Style License Plate Numbers Recognition
2018-05-22 · Pablo Negri
Gestaltic Grouping of Line Segments
2018-03-22 · Boshra Rajaei, Rafael Grompone von Gioi
Contours, Corners and T-Junctions Detection Algorithm
2018-02-27 · Antoni Buades, Rafael Grompone von Gioi, Julia Navarro
The Production of Ground Truths for Evaluating Highly Accurate Stereovision Algorithms
2018-01-02 · Tristan Dagobert
A Contrario 3D Point Alignment Detection Algorithm
2017-12-30 · Álvaro Gómez, Gregory Randall, Rafael Grompone von Gioi

Series and Special Issues

{->}Special Issue on Discrete Geometry (DGCI 2011)

This special issue contains selected papers from the 16th IAPR International Conference on Discrete Geometry for Computer Imagery adapted to the IPOL format. Guest editor: Bertrand Kerautret.
A Streaming Distance Transform Algorithm for Neighborhood-Sequence Distances
2014-09-01 · Nicolas Normand, Robin Strand, Pierre Evenou, Aurore Arlicot
Digital Level Layers for Digital Curve Decomposition and Vectorization
2014-07-30 · Laurent Provot, Yan Gerard, Fabien Feschet
A Near-Linear Time Guaranteed Algorithm for Digital Curve Simplification Under the Fréchet Distance
2014-05-22 · Isabelle Sivignon
Meaningful Scales Detection: an Unsupervised Noise Detection Algorithm for Digital Contours
2014-05-07 · Bertrand Kerautret, Jacques-Olivier Lachaud
Interactive Segmentation Based on Component-trees
2014-05-05 · Benoît Naegel, Nicolas Passat
Extraction of Connected Region Boundary in Multidimensional Images
2014-03-26 · David Coeurjolly, Bertrand Kerautret, Jacques-Olivier Lachaud

{->}SIIMS Companion Papers

Local Region Expansion: a Method for Analyzing and Refining Image Matches
2017-12-23 · Erez Farhan, Elad Meir, Rami Hagege
Comparison of Motion Smoothing Strategies for Video Stabilization using Parametric Models
2017-11-26 · Javier Sánchez
Multi-Scale DCT Denoising
2017-10-29 · Nicola Pierazzo, Jean-Michel Morel, Gabriele Facciolo
An Algorithm for Gaussian Texture Inpainting
2017-10-09 · Bruno Galerne, Arthur Leclaire
Cradle Removal in X-Ray Images of Panel Paintings
2017-01-14 · Gábor Fodor, Bruno Cornelis, Rujie Yin, Ann Dooms, Ingrid Daubechies
An Iterative Optimization Algorithm for Lens Distortion Correction Using Two-Parameter Models
2016-12-18 · Daniel Santana-Cedrés, Luis Gómez, Miguel Alemán-Flores, Agustín Salgado, Julio Esclarín, Luis Mazorra, Luis Álvarez
PARIGI: a Patch-based Approach to Remove Impulse-Gaussian Noise from Images
2016-06-29 · Julie Delon, Agnès Desolneux, Thierry Guillemot
On the Implementation of Collaborative TV Regularization: Application to Cartoon+Texture Decomposition
2016-04-20 · Joan Duran, Michael Moeller, Catalina Sbert, Daniel Cremers
The Flutter Shutter Code Calculator
2015-08-19 · Yohann Tendero
Obtaining High Quality Photographs of Paintings by Image Fusion
2015-06-27 · Antoni Buades, Gloria Haro, Enric Meinhardt-Llopis
Implementation of Nonlocal Pansharpening Image Fusion
2014-02-28 · Antoni Buades, Bartomeu Coll, Joan Duran, Catalina Sbert
Recovering the Subpixel PSF from Two Photographs at Different Distances
2013-10-23 · Mauricio Delbracio, Andrés Almansa, Pablo Musé
The Implementation of SURE Guided Piecewise Linear Image Denoising
2013-07-01 · Yi-Qing Wang
Implementation of the "Non-Local Bayes" (NL-Bayes) Image Denoising Algorithm
2013-06-17 · Marc Lebrun, Antoni Buades, Jean-Michel Morel
Image Interpolation with Geometric Contour Stencils
2011-09-01 · Pascal Getreuer

Topics

{->}3D

A Contrario 3D Point Alignment Detection Algorithm
2017-12-30 · Álvaro Gómez, Gregory Randall, Rafael Grompone von Gioi
The Bilateral Filter for Point Clouds
2017-10-29 · Julie Digne, Carlo de Franchis
Iterative Hough Transform for Line Detection in 3D Point Clouds
2017-07-19 · Christoph Dalitz, Tilman Schramke, Manuel Jeltsch
An Implementation and Parallelization of the Scale Space Meshing Algorithm
2015-11-23 · Julie Digne
An Analysis and Implementation of a Parallel Ball Pivoting Algorithm
2014-07-01 · Julie Digne
Farman Institute 3D Point Sets - High Precision 3D Data Sets
2011-09-27 · Julie Digne, Nicolas Audfray, Claire Lartigue, Charyar Mehdi-Souzani, Jean-Michel Morel

{->}Blur

Implementation of Local Fourier Burst Accumulation for Video Deblurring
2017-03-19 · Jérémy Anger, Enric Meinhardt-Llopis
Computing an Exact Gaussian Scale-Space
2016-02-02 · Ives Rey Otero, Mauricio Delbracio
A Survey of Gaussian Convolution Algorithms
2013-12-17 · Pascal Getreuer
Total Variation Deconvolution using Split Bregman
2012-07-30 · Pascal Getreuer
Recovering the Blur Kernel from Natural Image Statistics: An Analysis of the Goldstein-Fattal Method
PREPRINT · Jérémy Anger, Gabriele Facciolo, Mauricio Delbracio

{->}Calibration

An Iterative Optimization Algorithm for Lens Distortion Correction Using Two-Parameter Models
2016-12-18 · Daniel Santana-Cedrés, Luis Gómez, Miguel Alemán-Flores, Agustín Salgado, Julio Esclarín, Luis Mazorra, Luis Álvarez
Automatic Lens Distortion Correction Using One-Parameter Division Models
2014-11-20 · Miguel Alemán-Flores, Luis Alvarez, Luis Gomez, Daniel Santana-Cedrés
Recovering the Subpixel PSF from Two Photographs at Different Distances
2013-10-23 · Mauricio Delbracio, Andrés Almansa, Pablo Musé
Non-parametric Sub-pixel Local Point Spread Function Estimation
2012-03-23 · Mauricio Delbracio, Pablo Musé, Andrés Almansa
Algebraic Lens Distortion Model Estimation
2010-07-28 · Luis Alvarez, Luis Gomez, J. Rafael Sendra

{->}Color and Contrast

Midway Video Equalization
2017-04-24 · Javier Sánchez
Implementation of the Midway Image Equalization
2016-06-21 · Thierry Guillemot, Julie Delon
An Algorithmic Analysis of Variational Models for Perceptual Local Contrast Enhancement
2015-07-29 · Sira Ferradans, R. Palma-Amestoy, E. Provenzi
Multiscale Retinex
2014-04-16 · Ana Belén Petro, Catalina Sbert, Jean-Michel Morel
Screened Poisson Equation for Image Contrast Enhancement
2014-03-11 · Jean-Michel Morel, Ana-Belen Petro, Catalina Sbert
Selective Contrast Adjustment by Poisson Equation
2013-09-26 · Ana-Belen Petro, Catalina Sbert
Automatic Color Enhancement (ACE) and its Fast Implementation
2012-11-06 · Pascal Getreuer
Color and Contrast Enhancement by Controlled Piecewise Affine Histogram Equalization
2012-10-17 · Jose-Luis Lisani, Ana-Belen Petro, Catalina Sbert
Simplest Color Balance
2011-10-24 · Nicolas Limare, Jose-Luis Lisani, Jean-Michel Morel, Ana Belén Petro, Catalina Sbert
Local Color Correction
2011-09-27 · Juan Gabriel Gomila Salas, Jose Luis Lisani
Image Color Cube Dimensional Filtering and Visualization
2011-06-22 · Jose-Luis Lisani, Antoni Buades, Jean-Michel Morel
Retinex Poisson Equation: a Model for Color Perception
2011-04-05 · Nicolas Limare, Ana Belén Petro, Catalina Sbert, Jean-Michel Morel

{->}Computational Photography

Robust Phase Retrieval with the Swept Approximate Message Passing (prSAMP) Algorithm
2017-01-26 · Boshra Rajaei, Sylvain Gigan, Florent Krzakala, Laurent Daudet
The Flutter Shutter Code Calculator
2015-08-19 · Yohann Tendero
Obtaining High Quality Photographs of Paintings by Image Fusion
2015-06-27 · Antoni Buades, Gloria Haro, Enric Meinhardt-Llopis
The Flutter Shutter Camera Simulator
2012-10-17 · Yohann Tendero
Structural Similarity Metrics for Quality Image Fusion Assessment: Algorithms
PREPRINT · Silvina Pistonesi, Jorge Martinez, Silvia Maria Ojeda, Ronny Vallejos

{->}Demosaicking

A Demosaicking Algorithm with Adaptive Inter-Channel Correlation
2015-12-21 · Joan Duran, Antoni Buades
Implementation of Nonlocal Pansharpening Image Fusion
2014-02-28 · Antoni Buades, Bartomeu Coll, Joan Duran, Catalina Sbert
Image Demosaicking with Contour Stencils
2012-03-24 · Pascal Getreuer
Gunturk-Altunbasak-Mersereau Alternating Projections Image Demosaicking
2011-09-01 · Pascal Getreuer
Zhang-Wu Directional LMMSE Image Demosaicking
2011-09-01 · Pascal Getreuer
Self-similarity Driven Demosaicking
2011-06-01 · Antoni Buades, Bartomeu Coll, Jean-Michel Morel, Catalina Sbert

{->}Denoising

Multi-Scale DCT Denoising
2017-10-29 · Nicola Pierazzo, Jean-Michel Morel, Gabriele Facciolo
A Fast Approximation of the Bilateral Filter using the Discrete Fourier Transform
2017-05-24 · Pravin Nair, Anmol Popli, Kunal N. Chaudhury
Data Adaptive Dual Domain Denoising: a Method to Boost State of the Art Denoising Algorithms
2017-05-24 · Nicola Pierazzo, Gabriele Facciolo
Analysis and Extension of the PCA Method, Estimating a Noise Curve from a Single Image
2016-12-29 · Miguel Colom, Antoni Buades
PARIGI: a Patch-based Approach to Remove Impulse-Gaussian Noise from Images
2016-06-29 · Julie Delon, Agnès Desolneux, Thierry Guillemot
On the Implementation of Collaborative TV Regularization: Application to Cartoon+Texture Decomposition
2016-04-20 · Joan Duran, Michael Moeller, Catalina Sbert, Daniel Cremers
Small Neural Networks can Denoise Image Textures Well: a Useful Complement to BM3D
2016-01-19 · Yi-Qing Wang
Automatic Detection and Removal of Impulsive Noise in Audio Signals
2015-11-21 · Laurent Oudre
The Noise Clinic: a Blind Image Denoising Algorithm
2015-01-28 · Marc Lebrun, Miguel Colom, Jean-Michel Morel
Parameter-Free Fast Pixelwise Non-Local Means Denoising
2014-11-19 · Jacques Froment
An Analysis and Improvement of the BLS-GSM Denoising Method
2014-04-03 · Boshra Rajaei
Analysis and Extension of the Percentile Method, Estimating a Noise Curve from a Single Image
2013-12-20 · Miguel Colom, Antoni Buades
Chambolle's Projection Algorithm for Total Variation Denoising
2013-12-17 · Joan Duran, Bartomeu Coll, Catalina Sbert
Analysis and Extension of the Ponomarenko et al. Method, Estimating a Noise Curve from a Single Image
2013-07-23 · Miguel Colom, Antoni Buades
The Implementation of SURE Guided Piecewise Linear Image Denoising
2013-07-01 · Yi-Qing Wang
Implementation of the "Non-Local Bayes" (NL-Bayes) Image Denoising Algorithm
2013-06-17 · Marc Lebrun, Antoni Buades, Jean-Michel Morel
An Analysis and Implementation of the BM3D Image Denoising Method
2012-08-08 · Marc Lebrun
An Implementation and Detailed Analysis of the K-SVD Image Denoising Algorithm
2012-05-19 · Marc Lebrun, Arthur Leclaire
Rudin-Osher-Fatemi Total Variation Denoising using Split Bregman
2012-05-19 · Pascal Getreuer
DCT Image Denoising: a Simple and Effective Image Denoising Algorithm
2011-10-24 · Guoshen Yu, Guillermo Sapiro
Non-Local Means Denoising
2011-09-13 · Antoni Buades, Bartomeu Coll, Jean-Michel Morel

{->}Geometry

A Streaming Distance Transform Algorithm for Neighborhood-Sequence Distances
2014-09-01 · Nicolas Normand, Robin Strand, Pierre Evenou, Aurore Arlicot
Digital Level Layers for Digital Curve Decomposition and Vectorization
2014-07-30 · Laurent Provot, Yan Gerard, Fabien Feschet
A Near-Linear Time Guaranteed Algorithm for Digital Curve Simplification Under the Fréchet Distance
2014-05-22 · Isabelle Sivignon
Meaningful Scales Detection: an Unsupervised Noise Detection Algorithm for Digital Contours
2014-05-07 · Bertrand Kerautret, Jacques-Olivier Lachaud
Interactive Segmentation Based on Component-trees
2014-05-05 · Benoît Naegel, Nicolas Passat
Extraction of Connected Region Boundary in Multidimensional Images
2014-03-26 · David Coeurjolly, Bertrand Kerautret, Jacques-Olivier Lachaud

{->}Infrared

Non-uniformity Correction of Infrared Images by Midway Equalization
2012-07-12 · Yohann Tendero, Stéphane Landeau, Jérôme Gilles

{->}Learning and Detection

{->}Inpainting

Non-Local Patch-Based Image Inpainting
2017-12-13 · Alasdair Newson, Andrés Almansa, Yann Gousseau, Patrick Pérez
Variational Framework for Non-Local Inpainting
2015-12-26 · Vadim Fedorov, Gabriele Facciolo, Pablo Arias
E-PLE: an Algorithm for Image Inpainting
2013-12-04 · Yi-Qing Wang
Combined First and Second Order Total Variation Inpainting using Split Bregman
2013-07-12 · Konstantinos Papafitsoros, Carola Bibiane Schoenlieb, Bati Sengul
Total Variation Inpainting using Split Bregman
2012-07-30 · Pascal Getreuer

{->}Interpolation

{->}Image Comparison

Efficient Large-scale Image Search With a Vocabulary Tree
2018-06-03 · Esteban Uriza, Francisco Gómez Fernández, Martín Rais
Local Region Expansion: a Method for Analyzing and Refining Image Matches
2017-12-23 · Erez Farhan, Elad Meir, Rami Hagege
The Inverse Compositional Algorithm for Parametric Registration
2016-11-09 · Javier Sánchez
An Analysis of the SURF Method
2015-07-20 · Edouard Oyallon, Julien Rabin
Anatomy of the SIFT Method
2014-12-22 · Ives Rey Otero, Mauricio Delbracio
Automatic Homographic Registration of a Pair of Images, with A Contrario Elimination of Outliers
2012-05-19 · Lionel Moisan, Pierre Moulon, Pascal Monasse
ASIFT: An Algorithm for Fully Affine Invariant Comparison
2011-02-24 · Guoshen Yu, Jean-Michel Morel
An Affine Invariant Patch Similarity
PREPRINT · Vadim Fedorov, Coloma Ballester

{->}Optical Flow

The Inverse Compositional Algorithm for Parametric Registration
2016-11-09 · Javier Sánchez
Robust Discontinuity Preserving Optical Flow Methods
2016-11-07 · Nelson Monzón, Agustín Salgado, Javier Sánchez
An Implementation of Combined Local-Global Optical Flow
2015-06-25 · Jorge Jara-Wilde, Mauricio Cerda, José Delpiano, Steffen Härtel
A Line Search Multilevel Truncated Newton Algorithm for Computing the Optical Flow
2015-06-19 · Lluís Garrido, El Mostafa Kalmoun
Robust Optical Flow Estimation
2013-10-28 · Javier Sánchez Pérez, Nelson Monzón López, Agustín Salgado de la Nuez
Horn-Schunck Optical Flow with a Multi-Scale Strategy
2013-07-19 · Enric Meinhardt-Llopis, Javier Sánchez Pérez, Daniel Kondermann
TV-L1 Optical Flow Estimation
2013-07-19 · Javier Sánchez Pérez, Enric Meinhardt-Llopis, Gabriele Facciolo
Comparison of Optical Flow Methods under Stereomatching with Short Baselines
PREPRINT · Tristan Dagobert, Nelson Monzón, Javier Sánchez
Joint Large-Scale Motion Estimation and Image Reconstruction
PREPRINT · Hendrik Dirks
Joint TV-L1 Optical Flow and Occlusion Estimation
PREPRINT · Juan Francisco Garamendi Bragado, Coloma Ballester, Lluís Garrido, Vanel Lazcano, Vicent Caselles

{->}PDE

Poisson Image Editing
2016-11-18 · J. Matías Di Martino, Gabriele Facciolo, Enric Meinhardt-Llopis
A Finite Difference Scheme for the Stack Filter Simulating the MCM
2013-07-11 · Marco Mondelli
Finite Difference Schemes for MCM and AMSS
2011-09-13 · Marco Mondelli, Adina Ciomaga
Numerical Simulation of Landscape Evolution Models
PREPRINT · Marc Lebrun, Jean-Michel Morel, Miguel Colom, Jérôme Darbon

{->}Segmentation and Edges

Gestaltic Grouping of Line Segments
2018-03-22 · Boshra Rajaei, Rafael Grompone von Gioi
A Sub-Pixel Edge Detector: an Implementation of the Canny/Devernay Algorithm
2017-11-28 · Rafael Grompone von Gioi, Gregory Randall
2D Filtering of Curvilinear Structures by Ranking the Orientation Responses of Path Operators (RORPO)
2017-10-01 · Odyssee Merveille, Benoît Naegel, Hugues Talbot, Laurent Najman, Nicolas Passat
Hyperspectral Image Classification Using Graph Clustering Methods
2017-08-19 · Zhaoyi Meng, Ekaterina Merkurjev, Alice Koniges, Andrea L. Bertozzi
The Image Curvature Microscope: Accurate Curvature Computation at Subpixel Resolution
2017-07-28 · Adina Ciomaga, Pascal Monasse, Jean-Michel Morel
Vanishing Point Detection in Urban Scenes Using Point Alignments
2017-07-14 · José Lezama, Gregory Randall, Rafael Grompone von Gioi
An Unsupervised Algorithm for Detecting Good Continuation in Dot Patterns
2017-04-24 · José Lezama, Gregory Randall, Jean-Michel Morel, Rafael Grompone von Gioi
Unsupervised Smooth Contour Detection
2016-11-18 · Rafael Grompone von Gioi, Gregory Randall
Generation and Detection of Alignments in Gabor Patterns
2016-11-18 · Samy Blusseau, Rafael Grompone von Gioi
A C++ Implementation of Otsu’s Image Segmentation Method
2016-07-10 · Juan Pablo Balarini, Sergio Nesmachnow
An Unsupervised Point Alignment Detection Algorithm
2015-12-15 · José Lezama, Gregory Randall, Jean-Michel Morel, Rafael Grompone von Gioi
A Review of Classic Edge Detectors
2015-06-07 · Haldo Spontón, Juan Cardelino
Chan-Vese Segmentation
2012-08-08 · Pascal Getreuer
LSD: a Line Segment Detector
2012-03-24 · Rafael Grompone von Gioi, Jérémie Jakubowicz, Jean-Michel Morel, Gregory Randall
A Real Time Morphological Snakes Algorithm
2012-03-23 · Luis Alvarez, Luis Baumela, Pablo Márquez-Neila, Pedro Henríquez

{->}Stereovision

The Production of Ground Truths for Evaluating Highly Accurate Stereovision Algorithms
2018-01-02 · Tristan Dagobert
Fundamental Matrix of a Stereo Pair, with A Contrario Elimination of Outliers
2016-05-17 · Lionel Moisan, Pierre Moulon, Pascal Monasse
Bilaterally Weighted Patches for Disparity Map Computation
2015-03-11 · Laura Fernández Julià, Pascal Monasse
Integral Images for Block Matching
2014-12-16 · Gabriele Facciolo, Nicolas Limare, Enric Meinhardt-Llopis
Stereo Disparity through Cost Aggregation with Guided Filter
2014-10-23 · Pauline Tan, Pascal Monasse
Kolmogorov and Zabih’s Graph Cuts Stereo Matching Algorithm
2014-10-15 · Vladimir Kolmogorov, Pascal Monasse, Pauline Tan
Quasi-Euclidean Epipolar Rectification
2011-09-13 · Pascal Monasse

{->}Texture

An Algorithm for Gaussian Texture Inpainting
2017-10-09 · Bruno Galerne, Arthur Leclaire
Realistic Film Grain Rendering
2017-07-18 · Alasdair Newson, Noura Faraj, Bruno Galerne, Julie Delon
Cradle Removal in X-Ray Images of Panel Paintings
2017-01-14 · Gábor Fodor, Bruno Cornelis, Rujie Yin, Ann Dooms, Ingrid Daubechies
Efros and Freeman Image Quilting Algorithm for Texture Synthesis
2017-01-11 · Lara Raad, Bruno Galerne
Directional Filters for Cartoon + Texture Image Decomposition
2016-05-05 · Antoni Buades, Jose-Luis Lisani
The Heeger & Bergen Pyramid Based Texture Synthesis Algorithm
2014-11-17 · Thibaud Briand, Jonathan Vacher, Bruno Galerne, Julien Rabin
Cartoon + Texture Image Decomposition by the TV-L1 Model
2014-09-05 · Vincent Le Guen
Exemplar-based Texture Synthesis: the Efros-Leung Algorithm
2013-10-23 · Cecilia Aguerrebere, Yann Gousseau, Guillaume Tartavel
Micro-Texture Synthesis by Phase Randomization
2011-09-23 · Bruno Galerne, Yann Gousseau, Jean-Michel Morel
Cartoon+Texture Image Decomposition
2011-09-13 · Antoni Buades, Triet Le, Jean-Michel Morel, Luminita Vese

{->}Vision Through Turbulence

Implementation of the Centroid Method for the Correction of Turbulence
2014-07-31 · Enric Meinhardt-Llopis, Mario Micheli
Mao-Gilles Stabilization Algorithm
2013-07-19 · Jérôme Gilles
Study of the Principal Component Analysis Method for the Correction of Images Degraded by Turbulence
PREPRINT · Tristan Dagobert, Yohann Tendero, Stéphane Landeau

{->}Computer Graphics

Accelerating Monte Carlo Renderers by Ray Histogram Fusion
2015-03-11 · Mauricio Delbracio, Pablo Musé, Antoni Buades, Jean-Michel Morel

{->}Satellite Imaging

Attitude Refinement for Orbiting Pushbroom Cameras: a Simple Polynomial Fitting Method
2015-12-26 · Carlo de Franchis, Enric Meinhardt-Llopis, Daniel Greslou, Gabriele Facciolo

Latest News

Software Guidelines 1.04
2018-04-14
IPOL will be indexed in SCOPUS
2017-03-08
IPOL indexation in DOAJ
2017-01-02
IPOL will be at the Workshop on Reproducible Research on Pattern Recognition
2016-09-05
IPOL at the RCBR Workshop of NTMS 2015
2015-07-29
IPOL is now indexed by DBLP
2015-06-20