topic Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS? in 3D Mapping Questions

How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

MartDungay — Mon, 27 Jul 2015 16:11:46 GMT

Good morning,

I'm a beginner analyst attempting to map impervious water surfaces of land parcels in a city. The research I did suggested I use what is called the "Tasseled Cap" function in GIS to estimate the vegetation aka "Greenness" factor of the raster image to automatically make a distinction between pixels that are vegetation (some minimum level of green) and not vegetation (impervious).

I have no idea how to do this as my experience with Python and SQL is extremely limited and I can't find a built in function to do this for me.

Would anyone happen to have any helpful hints?

Cheers

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

IanMurray — Mon, 27 Jul 2015 16:33:43 GMT

Hi Matt,

There is a built in tasseled cap function for raster and mosaic datasets. Please see this post.

Tasseled Cap using Landsat 5 TM .tiffs in ArcMap 10.1

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

JayantaPoddar — Mon, 27 Jul 2015 21:01:49 GMT

Hi Mart,

If you want to apply just the greenness variable, you could use Raster Calculator.

Add TM1-5 and TM7 to ArcMap.

Open Raster Calculator (Spatial Analyst) and write the expression similar to that given below:

Float (((-0.2728)*TM1) - ((0.2174)*TM2) - ((0.5508)*TM3) + ((0.7221)*TM4) + ((0.0733)*TM5) - ((0.1648)*TM7))

Note: Replace "TM1-5" and "TM7" with the corresponding band names.

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

DarrenWiens2 — Mon, 27 Jul 2015 21:13:25 GMT

This answer caught me somewhat off-guard as the reference is from 1986, well before Landsat 7 and 8 (more common/possible for current imagery) were launched.

Anyhow, make sure you use the correct band combination for the sensor that collected your imagery - the band ranges are different. See here for more from the same reference, with other possible satellites: http://www.tft-earth.org/wp-content/uploads/2015/04/HCS-Approach-Toolkit-Ch3-GIS-analysis.pdf

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

JayantaPoddar — Tue, 28 Jul 2015 12:40:52 GMT

Darren,

The coefficients are for Thematic Mapper (L5), launched in March,1984.

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

JayantaPoddar — Tue, 28 Jul 2015 14:02:29 GMT

Also found TCT coefficients for L8.

Tasseled Cap transformation for Landsat 8 Imagery.pdf

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

MartDungay — Tue, 28 Jul 2015 19:07:46 GMT

Thanks guys, great info here. I should be able to get everything I need done.

Darren: I apologize if this is silly question but where in the expression does the raster name go? And as there are only three bands... do i need the rest of the coefficients? Also, do i put parentheses around the bands?

Once I figure how to input this correctly.... Float "Aerials\142140.sid" (((-0.2728)*"Band_1") - ((0.2174)*"Band_2") - ((0.5508)*"Band_3") + ((0.7221)*TM4) + ((0.0733)*TM5) - ((0.1648)*TM7))

Something like that....? I really should learn some more SQL....

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

MartDungay — Tue, 28 Jul 2015 19:09:17 GMT

I'd love to be able to use the function.... but I can't find "tasseled cap" in any of the toolbars or commands in ArcMap 10....

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

IanMurray — Tue, 28 Jul 2015 19:47:27 GMT

It under the Windows >Image Analysis, you can change the layer properties. I haven't tried myself since I don't have any LANDSAT handy, but figured it could point you in the right direction. I think the help the others have posted will be better for you anyway. If you are on ArcGIS 10, I'm not sure they had the Image Analysis Window it might be 10.1 and up.

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

JayantaPoddar — Wed, 29 Jul 2015 07:19:42 GMT

Hi Mart,

A Tasselled Cap algorithm should be used on raw bands of a satellite sensor. Which satellite imagery are you working on?

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

MartDungay — Wed, 29 Jul 2015 07:46:01 GMT

Here, have a jpeg of the raster information. I obviously have no idea what im doing haha. All i know is that they are .SID files and the cell resolution is 0.5. There are three bands... Red Green and Blue. Previously my superior mapped impervious surfaces of land parcels by hand.... it took her a long time.

Thanks!!

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

DanPatterson_Retired — Wed, 29 Jul 2015 08:25:24 GMT

Basically you have a 'picture' ... only red, green and blue. Acquire the imagery that is needed for the analysis or follow in your 'superiors' footsteps. Have you checked to see if imagery is available for your area even at a different resolution?

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

DarylVan_Dyke — Thu, 30 Jul 2015 16:49:23 GMT

Hi-

I worked up the Landsat 8 parameters for TCT into a toolbox. It is on GeoNet here:

KSHC_Landsat8_Tools.tbx

I think the script needs to be exported and re-added to the toolbox due to a relative-vs-absolute path problem, but it's a well written python script. The original script is on GitHub at GeospatialDaryl/LandSat8_TasseledCapTransform · GitHub

I'll look to try to get the TBX formatted right today.

Thanks-

Daryl

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

DarylVan_Dyke — Thu, 30 Jul 2015 16:49:52 GMT

Hi-

I've implemented these coefficients into a python script here:

KSHC_Landsat8_Tools.tbx

Daryl

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

MartDungay — Thu, 30 Jul 2015 18:07:52 GMT

Wow that is super useful. Thank you!

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

MMM3 — Wed, 27 Feb 2019 03:09:47 GMT

Could someone help me out with getting this toolbox to work? I've not worked with toolboxes much before so I'm unable to figure this one out.

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

DanPatterson_Retired — Wed, 27 Feb 2019 03:49:51 GMT

alternatives in Pro

Tasseled Cap Function—ArcGIS Pro | ArcGIS Desktop

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

MMM3 — Wed, 27 Feb 2019 04:18:18 GMT

Lol. I guess that works for me. Thanks. I should have looked at Pro.

Re: How to perform Tasseled Cap Function/"Greenness" Factor in GIS?

DrGMA — Mon, 15 Nov 2021 19:38:20 GMT

See the Landsat 8 coefficients here https://www.tandfonline.com/doi/full/10.1080/2150704X.2014.915434

Download the article (three cheers for "open access" provided by the authors) https://www.researchgate.net/publication/262005316_Derivation_of_a_tasselled_cap_transformation_based_on_Landsat_8_at-_satellite_reflectance

@JayantaPoddar I confirm that it must be used on at-satellite reflectance, it is mentioned also in literature, including the above cited article and https://yceo.yale.edu/tasseled-cap-transform-landsat-8-oli