Thermal Image Analysis


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Documentation for package ‘Thermimage’ version 2.2.1

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Thermimage-package Handles thermal image data input and conversion to temperature using established physical equations.
airdensity Returns the density of air for a given air temperature.
airspecificheat Specific heat capacity of air
airtconductivity Thermal conductivity of air.
airviscosity Returns air viscovisty for a given air temperature.
areacone Provides the surface are of a cone
areacylinder Provides the surface area of a cylinder.
areasphere Provides the surface area of a sphere.
flip.matrix Flips a matrix 'left-right'. Used in re-arranging image data for plotting properly in R.
flirpal Colour palette extracted from FLIR thermal camera files
flirsettings Extracts meta tag information from a FLIR JPG image
forcedparameters Parameters required for forced convection equation.
freeparameters Parameters required for free convection equation.
glowbowpal Colour palette extracted from FLIR thermal camera files
Grashof Determines the Grashof number for an object
grey10pal Colour palette extracted from FLIR thermal camera files
grey120pal Colour palette extracted from FLIR thermal camera files
greyredpal Colour palette extracted from FLIR thermal camera files
hconv Convective heat coefficient (W/m2/oC)
hotironpal Colour palette extracted from FLIR thermal camera files
ironbowpal Colour palette extracted from FLIR thermal camera files
Ld Estimates downward facing longwave radiation (W/m2)
locate.fid Returns the index locations that match vector fid within data vector.
Lu Estimates upward facing ground radiation (W/m2)
Lw Estimates downward facing longwave radiation (W/m2)
meanEveryN Calculate the mean every nth data point.
medicalpal Colour palette extracted from FLIR thermal camera files
midgreenpal Colour palette extracted from FLIR thermal camera files
midgreypal Colour palette extracted from FLIR thermal camera files
mikronprismpal Colour palette extracted from Mikron thermal camera files
mikroscanpal Colour palette extracted from FLIR thermal camera files
mirror.matrix Mirrors a matrix upside-down. Used in re-arranging image data for plotting properly in R.
Nusseltforced Nusselt number for forced convection.
Nusseltfree Nusselt number for free convection.
palette.choose Choose a colour palette for gradient filling thermal image files.
Prandtl Returns the Prandtl number
qabs Estimates the absorbed solar and infrared radiation (W/m2)
qcond Estimates the area specific heat transfer by conduction (W/m2)
qconv Estimates the area specific heat transfer by convection (W/m2)
qrad Estimates the area specific heat transfer by radiation (W/m2)
rainbowpal Colour palette extracted from FLIR thermal camera files
raw2temp Converts raw thermal data into temperature (oC)
readflirJPG Reads an image from a FLIR JPG file into an integer array.
Reynolds Calculates the Reynolds number.
rotate180.matrix Rotate a matrix by 180 degrees. Used for adjusting image plotting in R.
rotate270.matrix Rotate a matrix by 270 degrees counterclockwise (or 90 degree clockwise). Used for adjusting image plotting in R.
rotate90.matrix Rotate a matrix by 90 degrees counterclockwise (270 degrees clockwise). Used for adjusting image plotting in R.
samp.image A sample thermal image to demonstrate thermal colour palette use.
slopebypoint Returns the slope from linear regression with x values as equally spaced 1:length
slopeEveryN Calculate the slope every nth data point.
StephBoltz The Stephan Boltzman constant.
Te Operative temperature estimate.
temp2raw Converts temperature (oC) to raw thermal data
Teq Estimates equivalent temperature.
Tground Estimates ground temperature from ambient temperature and solar radiation.
Thermimage Handles thermal image data input and conversion to temperature using established physical equations.
yellowpal Colour palette extracted from FLIR thermal camera files