Talk:Exercise 29

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(Calculation of index)
 
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==Color settings==
 
==Color settings==
We work in GRASS here, so the color has either to be set by {{typed|text=r.colors}} or exported to e.g. GeoTIFF by {{typed|text=r.out.gtiff}}. [[User:Lburgr|- Levent]] 18:14, 17 December 2010 (CET)
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We work in GRASS here, so the color has either to be set by {{typed|text=r.colors}} (where histogram-equalized grey scale may be a good option) or exported to e.g. GeoTIFF by {{typed|text=r.out.gtiff}}. [[User:Lburgr|- Levent]] 20:47, 25 December 2010 (CET)
==Calculation of index==
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The index is calculated by dividing the near-infrared by the red band. Therefor, a small index represents a healthy vegetation. Would it make sense to calculate the index vice-versa, so that a high number is supposed to represent a healthy vegetation, making the ratio more intuitively to understand? [[User:Lburgr|- Levent]] 20:36, 25 December 2010 (CET)
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Latest revision as of 21:50, 25 December 2010

[edit] Color settings

We work in GRASS here, so the color has either to be set by r.colors (where histogram-equalized grey scale may be a good option) or exported to e.g. GeoTIFF by r.out.gtiff. - Levent 20:47, 25 December 2010 (CET)

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