Temp_Scape: ReVuePro: Temp_Scape

Description Usage Arguments Details Examples

View source: R/Temp_Scape_function.R

Description

A function to decrypt radiometric JPGs (rJPGs) captured using the FLIR Vue Pro R, and produce CSVs of temperature according to pixel coordinates. Requires manual input of ambient temperature at the time of image capture.

Usage

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
Temp_Scape(
  source,
  destination,
  pwidth = 336,
  pheight = 256,
  P_R1 = 17096.453125,
  P_R2 = 0.04351538,
  P_B = 1428,
  P_F = 1,
  P_O = -55,
  emiss = 0.98,
  OD = 1,
  AT,
  RT = AT,
  WT = AT,
  transmit = 1,
  hum
)

Arguments

source

A path to the folder containing radiometric JPGs (rJPGs) to be rewritten. There is no default input.

destination

The path to a folder at wish you would like your output CSVs to be saved.

pwidth

The width, in pixels, of the thermal image. Default is 336.

pheight

The height, in pixels, of the thermal image Default is 256.

P_R1

Planck_R1 from function "Rad_Temp" in package "ReVuePro". A callibration constant, specific per FLIR camera. This can be determined using 'exiftool.exe', produced by Phil Harvey. Default is 17096.453125.

P_R2

Planck_R2 from function "Rad_Temp" in package "ReVuePro". A callibration constant, specific per FLIR camera. This can be determined using 'exiftool.exe', produced by Phil Harvey. Default is 0.04351538.

P_B

Planck_B from function "Rad_Temp" in package "ReVuePro". A callibration constant, specific per FLIR camera. This can be determined using 'exiftool.exe', produced by Phil Harvey. Default is 1428.0.

P_F

Planck_F from function "Rad_Temp" in package "ReVuePro". A callibration constant, specific per FLIR camera. This can be determined using 'exiftool.exe', produced by Phil Harvey. Default is 1.0.

P_O

Planck_O from function "Rad_Temp" in package "ReVuePro". A callibration constant, specific per FLIR camera. This can be determined using 'exiftool.exe', produced by Phil Harvey. Default is -55.0.

emiss

Emmissivity from function "Rad_Temp" in package "ReVuePro". The relative energy that is emitted (or radiated) from the surface of the object in the image, compared to that emitted from a blackbody in equivalent conditions. This value must lay between 0 and 1. Default is 0.98.

OD

obj_distance from function "Rad_Temp" in package "ReVuePro". The distance between the thermal imaging camera and object to be measured within the image. This value is expressed in metres. Default is 1.0 metres.

AT

amb_temp from function "Rad_Temp" in package "ReVuePro". Ambient temperature, in degrees Celsius, at the time of image capture.

RT

ref_temp from function "Rad_Temp" in package "ReVuePro". Reflected temperature, in degrees Celsius, at the time of image capture. Default is to apply ambient temperature (AT) to reflected temperature.

WT

window_temp from function "Rad_Temp" in package "ReVuePro". The temperature, in degrees Celsius, of a window, through which the image was capture. Default is to apply ambient temperature (AT) to window temperature.

transmit

wind_transmittance from function "Rad_Temp" in package "ReVuePro". The relative amount of light transmitted though a window between the thermal imaging camera and object in question. This value must lay between 0 and 1, with a default value of 1.

hum

humidity from function "Rad_Temp" in package "ReVuePro". Relative, atmospheric humidity at the time if image character. This value is expressed as a percentage, and therefore should lay between 0 and 100.

Details

Note that RAW files will be written such that their creation date matches that of the parent JPG. Furthermore, this function calls upon Microsoft Powershell, and is therefore currently limited to Windows users.

Examples

1
2
3
4
5
source = "C:/MyJPGs"
destination = "C:/MyTempScapes"
ambtempdata = "C:/Temperature_Data/ExperimentTemp.xlsx"
Temp_Scape(source = source, destination = destination, pwidth = 336, pheight = 256, P_R1 = 17096.453125, P_R2 = 0.04351538,
                 P_B = 1428.0, P_F = 1, P_O = -55.0, emiss = 0.98, OD = 1.0, AT = 23.0, hum = 30) 

joshuakrobertson/R-Package_ReVuePro documentation built on June 2, 2020, 8:23 p.m.