#Exiftool recursive example .exe#
#Exiftool recursive example full#
#Exiftool recursive example software#
#Exiftool recursive example zip#

if it is defined, camera subdirectories will be created within the station directories. It specifies the camera ID column in the camera trap information table. The behaviour is controlled by the function argument cameras. As mentioned above, images can either be stored in station directories (if there was 1 camera per station) or in station/camera directories (if there was >1 camera per station). The directories for the raw images can be created automatically using the function createStationFolders and the camera trap station table.

You can turn data type Date into character using as.character. Date format must be consistent between the date columns.ĭata type of the ID and date columns in the table must be character or factor. In the sample data, we use another format for demonstration purposes. camtrapR by default assumes the standard format “YYYY-MM-DD”, e.g. Their names must follow the pattern given here.Īll dates in this table (setup, retrieval and problem columns) can be formatted in any way that function as.Date can understand. can be added if cameras/stations malfunctioned repeatedly. Additional pairs of columns such as ‘Problem2_from’ and ‘Problem2_to’ etc. ‘Problem1_from’ and ‘Problem1_to’ are optional columns to specify periods in which cameras/stations were not operational. All of these may have user-defined names. ‘Setup_date’ and ‘Retrieval_date’ are the dates the stations were set up and retrieved from the field. In the sample table, ‘Station’ contains station IDs, ‘utm_y’ and ‘utm_x’ contain the station’s geographic coordinates. Consequently, there would be one row for each camera and thus several rows per station.Ĭolumn names are not prescribed to allow users freedom in naming their data the way they wish (with one exception detailed below). If there was more than one camera per station, an additional column for camera IDs would be needed. Thus, there is no need to differentiate between station and camera IDs. Note that the sample data contain only one camera per station. # here is a sample camera trap station table data( 'camtraps')Ĭamtraps # Station utm_y utm_x Setup_date Retrieval_date Problem1_from

#Exiftool recursive example software#

The table can be generated standard spreadsheet software and loaded into R.

#Exiftool recursive example full#

Information to be stored in this table are: station (and camera) IDs, geographic coordinates, setup and retrieval dates and possible dates when camera were not operational (because of malfunction, animal interference, empty batteries, full memory cards etc.). Camera trap station information are tabulated in a simple data frame with 1 row per station (if there was 1 camera per station) or 1 row per camera (if there was more than 1 camera per station).

# this is a dummy example assuming the directory structure: C:/Path/To/Exiftool/exiftool.exeĮxiftool_dir <- 'C:/Path/To/Exiftool' exiftoolPath( exiftoolDir = exiftool_dir)Īfterwards, Windows (via R) should be able to find ExifTool during the active session.īefore looking at how images are handled, let’s first familiarise ourselves with how information about camera trap stations are stored. This is necessary if the directory containing exiftool.exe is not in PATH by default. If exiftool.exe cannot be placed in a PATH directory (e.g. due to limited user privileges), users can place exiftool.exe in any directory and then add that directory to PATH temporarily for use in the running R session using the function exiftoolPath. # Check which directories are in PATH (not shown here) Sys.getenv( 'PATH') # Check if the system can find ExifTool Sys.which( 'exiftool') # exiftool Windows will be able to find ExifTool if exiftool.exe is placed in a directory that is contained in Window’s PATH variable (e.g. C:/Windows).

#Exiftool recursive example .exe#

exe file to exiftool.exe and place it in, e.g., C:/Windows.

#Exiftool recursive example zip#

zip which you need to unzip, rename the contained. Be sure to download the stand-alone executable. In order for Windows to be able to find ExifTool, follow the instructions found here. On Windows, ExifTool does not need installation.