CIMES-FISHEYE

HEMISPHERICAL PHOTOGRAPHY OF FOREST CANOPIES
GNU Copyright (C) 1982-2022 by Jean-Michel Walter
Contributors: Alemu Gonsamo

The program is distributed under the terms of the GNU General Public License. Citation: Gonsamo A, Walter J-M and Pellikka P (2011) CIMES: A package of programs for determining canopy geometry and solar radiation regimes through hemispherical photographs. Computers and Electronics in Agriculture 79, 207-215.

Click here for license file

Features
CIMES-FISHEYE is a package of free programs for the analysis of hemispherical photographs (HP) of forest canopies, to extract key canopy attributes like solar radiation indices, leaf area index, canopy openness, etc. These programs offer a unique set of features for film and digital hemispherical photography:

– Ability to process both grey-toned and classified images
– A variety of algorithms to invert gap fraction data
– Values for sky segments and overall values
– Works on any range of zenith and azimuth view angles
– Single photosites or whole plots (transects, grids, etc.)
– Correction for slope (LAI and solar radiation)
– Tools to account for foliage clumping
– Spherical statistics for gap fraction distribution
– PAR interception, sun-fleck dynamics.

CIMES-FISHEYE is not a self-contained software based on a graphical user interface (GUI). Before running the programs, graphical pre-processing is needed, using commercial or free graphical software. CIMES-FISHEYE consists of command-line programs, which run independently of each other, like a toolbox.
Programs are written in C and C++ languages, ensuring portability over any computing system: Windows, Mac OS X, LINUX and UNIX. CIMES-FISHEYE programs stemmed from an early UNIX environment (1982) and were progressively adapted to other environments (Windows, Mac OS X, LINUX), regularly improved and updated (2021).
A companion manual introduces to hemispherical photography of forest canopies, from film or digital cameras, providing theoretical background and a practical user’s guide. Numerous references accompany the manual.

Contents

The package contains the following archives and files (click on archive or file name for download):

CIMESOSX.zip         Binaries for Mac OS X
CIMESWIN.zip     Binaries for Windows
CIMESLNX.zip           Binaries for LINUX

MANUALGENRL.zip Manual files: Outline, Theory, Practice, References
MANUALSOLAR.zip Manual files: Solar Radiation Regimes
MANUALSTRUC.zip Manual files: Canopy Structure

updates.pdf Updates, history
readmeHP.pdf Detailed features and installation guide

Binaries contain the following files:

    MAIN
      GFA
    SOLAR RADIATION
       PARCLR, PARHOR, PARSOC, SUNFLK, SUNEPHEMERIS
    CANOPY STRUCTURE
       READPHOT, OPENNESS, STATSPH
        LAISTS, LAINRC, LAIMIL, LAILANG, LANG, LAIMLR, TRANSLAI
       LAICMP, LAICAM, LOGCAM
    PCS

These command-line programs are stand-alone. They can be extracted from the archives. GFA is the core program. It extracts gap fraction and gap size data from digital (or digitized) images in BMP format. All other programs use gap fraction data and/or gap size data created by GFA. Batch processing of any number of HP is easy under Windows, Mac OSX, and UNIX as well.

The manual, user's guide and programs documentation, is composed of three parts: (i) General, (ii) Sun files, (iii) Structure files. <readmeHP.pdf> explains how to install and use the programs.

Last revision: July 28, 2022

mailto: jmnw at free.fr
or
gonsamoa at mcmaster.ca
Last–

CIMES-FISHEYE

Features