[GRASS-user] Derivation of Landsat 8 Tasseled Cap coefficients for certain scene in Grass
Kozlova Maria
kclo at yandex.ru
Wed Jun 10 04:50:55 PDT 2015
Yes. Though this paper is based only on MSS and TM data. Till now there are much more interesting developments very useful in land cover monitoring
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Best regards,
Maria V. Kozlova
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10.06.2015, 14:13, "Nikos Alexandris" <nik at nikosalexandris.net>:
> * Kozlova Maria <kclo at yandex.ru> [2015-06-10 11:48:44 +0300]:
>
>> Dear colleagues,
>>
>> Thank you for response.
>> a little bit later I will type the full procedure for derivation of TC coefficients.
>> PCA itself cannot be applied here as it is based only on statistical information of the image. TCT is physically based transformation and PCA is only the first step.
>> The main problem I see here is the 'soil line' which must be determined (manually or automatically) and PCA axes rotation to align 1st PCA component in accordance to the soil line.
>> Though I have to describe it in more details later...
>
> This introduction <http://www.sjsu.edu/faculty/watkins/tassel.htm> looks
> good for me :-)
>
> Nikos
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