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Deshadowing WorldView-2 using ENVI
By rodloc,
i am interested in knowing if any users of ENVI 4.8 have done any work on deshadowing images from worldview-2.
i have an image of an island that has steep incline that has shadow over it which gets distinguish as water. i was wondering if there is away to remove it using any equations with ENVI that are easy to input.
i have got one study though i am not sure how i put the equations in envi or if there are any equivalent ones in envi that i could use to get an end result.
i am also intere
How to build web application based on google earth/maps
By lacocaraca,
Hi everybody !
I want to ask you, how to build application based on google earth/maps but with my legend or like following example
[hide]
http://www.grafschafter-atlas.de/atlas/index.php?act=viewer&geo=527
[/hide]
Advice for appropriated software for this
Thanks !
Asia Geospatial Forum 2011
By Lurker,
Over the years, Map Asia had revealed effective solutions on various concerns of Geospatial Technology in the Asia Pacific region; Map Asia has matured as a conference and is now widely recognised as one of the most important geospatial industry event in Asia Pacific. GIS Development was resolute to take Map Asia to a privileged level in order have its recognition as one of the largest Asian Geospatial Industry Event and the conference is in its way forward to achieve the desired objective. Thus
Arctoolbox can not be executed
By fizhyova,
anyone can help me about arctoolbox. Every time I use to do the job always arctoolbox can not be used. As to "Rename" contained in the "Data Management" always failed.
please help. thanks
Cookie Cut Polygons using polygons using in same shape file
By Intellgis,
I encountered a problem in editing some landuse polygons.
I want to cookie cut some polygons with some other polygons in same layer.
Either I have to use cut polygon option which is tedious.
Can I select the outer polygons and inner polygon and give any cookie cut option in ARcMAP 10. ?
Thanks in advance.
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Hello folks! I am trying to use the Lyzenga Algorithm for estimating the depth of water in shallower areas, probably depths under 8-10 meters of lakes. First of all, how accurate is this algorithm in practice? Secondly, lets say i have the band values. can someone explain me how to retrieve those depths? I am following the "Lyzenga Algorithm for Shallow Water Mapping Using Multispectral Sentinel-2 Imageries in Gili Noko Waters" paper, but there are 3 steps of getting NDWIs, NDCIs and after filtering the Sun Glint Correction, then it finally comes to the depth calculating. it end ups in a formula of following: 𝑧 = 28.32 ∗ 𝑋1 − 36.25 ∗ 𝑋2 + 9.42 ∗ 𝑋3 + 16.35 x1 , x2, x3 are RGB values respectively. What do you guys think? can i just apply this formula ? if not, what is the purpose of all the previous steps, and will they change the rgb values anyways? -
Hello folks! I am trying to use the Lyzenga Algorithm for estimating the depth of water in shallower areas, probably depths under 8-10 meters of lakes. First of all, how accurate is this algorithm in practice? Secondly, lets say i have the band values. can someone explain me how to retrieve those depths? I am following the "Lyzenga Algorithm for Shallow Water Mapping Using Multispectral Sentinel-2 Imageries in Gili Noko Waters" paper, but there are 3 steps of getting NDWIs, NDCIs and after filtering the Sun Glint Correction, then it finally comes to the depth calculating. it end ups in a formula of following: 𝑧 = 28.32 ∗ 𝑋1 − 36.25 ∗ 𝑋2 + 9.42 ∗ 𝑋3 + 16.35 x1 , x2, x3 are RGB values respectively. What do you guys think? can i just apply this formula ? if not, what is the purpose of all the previous steps, and will they change the rgb values anyways?
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