Spectral Index Calculator

Function Overview

This function is based on the combination of surface reflectivity of two or more wavelengths to highlight the specific characteristics of the ground objects, and the function contains all spectral indices.

Usage

Click Spectrum > Spectral Index > Spectral Index Calculator.

Click the Spectrum Subset button to select the band of the hyperspectral image, and the spectral index it supports to calculate will also change accordingly.

Parameter Setting

Input hyperspectral image data: Input the hyperspectral image data file. The format supports tif, tiff, img, dat. The data must have wavelength information.
Band Selection: Select the band of the hyperspectral image.
Supported spectral index: Automatically match the calculated spectral index according to the wavelength information of the selected band.
Biophysics Cross-test: The process of verifying the correlation between the spectral index and the actual biophysical parameters of the land objects to ensure the scientificity and reliability of the index results. It is not checked by default.
ROI: After selection, only the minimum external rectangle in the ROI area is calculated exponentially.
Mask: Only the effective area of the mask is calculated exponentially after selection.
Output path: The generated tif path.

References

@inproceedings{ author={Gu, Z., et al}, title={Using Multiple Radiometric Correction Images to Estimate Leaf Area Index}, booktitle={International Journal of Remote Sensing 32 (2011):9441-9454}, year={2011} }

    @inproceedings{
        author={Guyot, G., and G. Xing-Fa},
        title={Effect of Radiometric Corrections on NDVI-Determined from SPOT-HRV and Landsat-TM Data},
        booktitle={Remote Sensing of Environment 49, no. 3 (1994): 169-180},
        year={1994}
    }

    @inproceedings{
        author={Hadjimitsis, D., et al},
        title={Atmospheric Correction for Satellite Remotely Sensed Data Intended for Agricultural Applications: Impact on Vegetation Indices},
        booktitle={Natural Hazards Earth System Science 10 (2010): 89-95},
        year={2010}
    }

    @inproceedings{
        author={Jackson, R., and A. Huete},
        title={Interpreting Vegetation Indices},
        booktitle={Preventive Veterinary Medicine 11 (1991): 185-200},
        year={1991}
    }

    @inproceedings{
        author={Price, J},
        title={Calibration of Satellite Radiometers and the Comparison of Vegetation Indices},
        booktitle={Remote Sensing of Environment 21 (1987): 15-27},
        year={1987}
    }

    @inproceedings{
        author={Ray, T},
        title={A FAQ on Vegetation in Remote Sensing},
        booktitle={http://www.yale.edu/ceo/Documentation/rsvegfaq.html, updated 13 October 1994. Accessed February 2014},
        year={1994}
    }

    @inproceedings{
        author={Steven, M., et al},
        title={Intercalibration of Vegetation Indices from Different Sensor Systems},
        booktitle={Remote Sensing of Environment 88 (2003): 412-422},
        year={2003}
    }

Supported Index

Name	Abbreviation	Calculation Formula	Wavelength
Alunite Index	ALUI	(w2260 w2165) / (w2260 w2330)	"w2165", "w2260", "w2330"
Anthocyanin Reflectance Index 1	ARI1	(1.0 / w550) - (1.0 / w700)	"w550", "w700"
Anthocyanin Reflectance Index 2	ARI2	w800n * ((1.0 / w550) - (1.0 / w700))	"w800n", "w550", "w700"
Atmospherically Resistant Vegetation Index	ARVI	(w800w - 2 w680 + w450) / (w800w + 2 w680 - w450)	"w800w", "w680", "w450"
Burn Area Index	BAI	1.0 / ((0.1 - red)^2 + (0.06 - nir)^2)	"nir", "red"
Calcite Index	CALI	(w2205 / w2330) * (w2395 / w2330)	"w2205", "w2330", "w2395"
Carbonate Index	CARI	w10600 / w11300	"w10600", "w11300"
Carotenoid Reflectance Index 1	CRI1	(1.0 / w510) - (1.0 / w550)	"w510", "w550"
Carotenoid Reflectance Index 2	CRI2	(1.0 / w510) - (1.0 / w700)	"w510", "w700"
Cellulose Absorption Index	CAI	0.5*(w2000 + w2200) - w2100	"w2000", "w2200", "w2100"
Clay Alteration Index	CLAI	(w1650 + w2205) / w2165	"w1650", "w2165", "w2205"
Clay Minerals Ratio	CMR	tm5 / tm7	"tm5", "tm7"
Difference Vegetation Index	DVI	nir - red	"nir", "red"
Disease Water Stress Index	DWSI	(nir + green) / (swir1 + red)	"nir", "green", "swir1", "red"
Dolomite Index	DOLI	(w2205 + w2330) / w2300	"w2205", "w2300", "w2330"
Enhanced Vegetation Index	EVI	(2.5 (nir - red)) / (nir + 6.0 red - 7.5 * blue + 1.0)	"nir", "red", "blue"
Epidote / Chlorite / Amphibole Index	ECAI	(w2205 + w2395) / (w2300 + w2330)	"w2205", "w2300", "w2330", "w2395"
Ferric Iron Alteration Index	FEAI	(w2165 / w820) + (w560 / tm3)	"w560", "tm3", "w820", "w2165"
Ferrous Iron (Fe2+) Index	FEI	(w2165 + w820) / (w560 + tm3)	"w560", "tm3", "w820", "w2165"
Ferrous Minerals Ratio	FMR	tm5 / tm4	"tm5", "tm4"
Ferrous Silicates Index	FESI	w2165 / w1650	"w1650", "w2165"
Forest Cover Index 1	FCI1	red * rededge	"red", "rededge"
Forest Cover Index 2	FCI2	red * nir	"red", "nir"
Global Environmental Monitoring Index	GEMI	((2.0 (nir nir - red red) + 1.5 nir + 0.5 red) / (nir + red + 0.5)) (1.0 - 0.25 ((2.0 (nir nir - red red) + 1.5 nir + 0.5 red) / (nir + red + 0.5))) - ((red - 0.125) / (1.0 - red))	"red", "nir"
Green Atmospherically Resistant Index	GARI	(nir - green + 1.7 blue - 1.7 red) / (nir + green - 1.7 blue + 1.7 red)	"nir", "red", "green", "blue"
Green Chlorophyll Index	GCI	(nir / green) - 1.0	"nir", "green"
Green Difference Vegetation Index	GDVI	nir - green	"nir", "green"
Green Leaf Index	GLI	(2.0 green - red - blue) / (2.0 green + red + blue)	"red", "green", "blue"
Green Normalized Difference Vegetation Index	GNDVI	(nir - green) / (nir + green)	"nir", "green"
Green Optimized Soil Adjusted Vegetation Index	GOSAVI	(nir - green) / (nir + green + 0.16)	"nir", "green"
Green Ratio Vegetation Index	GRVI	nir / green	"nir", "green"
Green Soil Adjusted Vegetation Index	GSAVI	1.5 * (nir - green) / (nir + green + 0.5)	"nir", "green"
Green Vegetation Index	GVI	(-0.2848tm1) + (-0.2435tm2) + (-0.5436tm3) + (0.7243tm4) + (0.0840tm5) + (-0.1800tm7)	"tm1", "tm2", "tm3", "tm4", "tm5", "tm7"
Hydroxyl-Bearing (OH) Altered Minerals Index 1	OHI1	(w2260 / w2205) * (w1650 / w2205)	"w1650", "w2205", "w2260"
Hydroxyl-Bearing (OH) Altered Minerals Index 2	OHI2	(w1650 w2260) / (w2205 w2205)	"w1650", "w2205", "w2260"
Hydroxyl-Bearing (OH) Altered Minerals Index 3	OHI3	(w1650 w2260) / (w2165 w2165)	"w1650", "w2165", "w2260"
Infrared Percentage Vegetation Index	IPVI	nir / (nir + red)	"nir", "red"
Iron Oxide Ratio	IOR	tm3 / tm1	"w2165", "w2300"
Kaolinite Index 1	KAI1	w2300 / w2165	"w10600", "w11300"
Kaolinite Index 2	KAI2	(w1650 / w2165) * (w2330 / w2205)	"w1650", "w2165", "w2205", "w2330"
Kaolinite Index 3	KAI3	(w1650 + w2260) / w2205	"w1650", "w2205", "w2260"
Laterite Index	LATI	w1650 / w560	"w560", "w1650"
Leaf Area Index	LAI	if(((1.0 + nir + 6.0 red - 7.5 blue) != 0) And (3.618 ((2.5 (nir - red)) / (1.0 + nir + 6.0 red - 7.5 blue)) - 0.118) >= 0, 3.618 ((2.5 (nir - red)) / (1.0 + nir + 6.0 red - 7.5 blue)) - 0.118, 0.0)	"nir", "red", "blue"
Leaf Chlorophyll Index	LCI	(w850 - w710) / (w850 + w680)	"w850", "w710", "w680"
Leaf Water Vegetation Index 1	LWVI1	(w1094 - w983) / (w1094 + w983)	"w1094", "w983"
Leaf Water Vegetation Index 2	LWVI2	(w1094 - w1205) / (w1094 + w1205)	"w1094", "w1205"
Lignin Cellulose Absorption Index	LCAI	100.0 * ((w2205-w2165) + (w2205-w2330))	"w2205", "w2165", "w2330"
Magnesite Index	MAGI	(w2205 + w2330) / (w2260 + w2395)	"w2205", "w2260", "w2330", "w2395"
MgOH-Carbonate Abundance Index	MGAI	(w2395 + w2205) / w2330	"w2205", "w2330", "w2395"
Modified Chlorophyll Absorption Ratio Index	MCARI	((w700 - w680) - 0.2 (w700 - w550)) (w700 / w680)	"w700", "w680", "w550"
Modified Chlorophyll Absorption Ratio Index - Improved	MCARI2	(1.5 (2.5 (w800n - w680) - 1.3 (w800n - w550))) / sqrt(4.0 (w800n^2) - 2.0 w800n + 0.5 + 5.0 sqrt(w680))	"w800n", "w680", "w550"
Modified Non-Linear Index	MNLI	( ((nir^2) - red) * 1.5 ) / ( (nir^2) + red + 0.5 )	"nir", "red"
Modified Normalized Difference Water Index	MNDWI	(green - swir1) / (green + swir1)	"green", "swir1"
Modified Red Edge Normalized Difference Vegetation Index	MRENDVI	(w750w - w705) / (w750w + w705 - 2.0 * w445)	"w750w", "w705", "w445"
Modified Red Edge Simple Ratio	MRESR	(w750w - w445) / (w705 - w445)	"w750w", "w445", "w705"
Modified Simple Ratio	MSR	( (nir / red) - 1.0 ) / sqrt( (nir / red) + 1.0 )	"nir", "red"
Modified Soil Adjusted Vegetation Index 2	MSAVI2	((2.0 nir + 1.0) - sqrt(((2.0 nir + 1.0)^2) - 8.0 * (nir - red))) / 2.0	"nir", "red"
Modified Triangular Vegetation Index	MTVI	1.2 (1.2 (nir - green) - 2.5 * (red - green))	"nir", "red", "green"
Modified Triangular Vegetation Index - Improved	MTVI2	"(1.5 (1.2 (nir - green) - 2.5 * (red - green))) /

Spectral Index Calculator