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Accuracy Assessment of an Image Classification in ArcMap 

Map & GIS Library
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26 окт 2024

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Комментарии : 47   
@mayrabarral6594
@mayrabarral6594 9 лет назад
Huge thanks!! You just saved my academic life.
@Vishal54438
@Vishal54438 6 лет назад
Thanks a lot... You have explained it in so easy way... Very easy to work out as per your instructions...
@buklind
@buklind 10 лет назад
Please do you have a written version of this tutorial?
@gidadokabeer6302
@gidadokabeer6302 6 лет назад
Nice tutorial. But how did you get the reference _point 2 to display? Thank you
@TheMohsennabil
@TheMohsennabil 8 лет назад
Really thank you very much. the video helps me a lot
@geovenandrea3384
@geovenandrea3384 3 года назад
HI! thanks in advance for sharing
@w17h0u754n17y
@w17h0u754n17y 9 лет назад
Awesome tutorial, thanks!
@ahmedmashharawi1
@ahmedmashharawi1 6 лет назад
You are wrong answer .. When the equation is applied, the result becomes 0.65 Kappa = 0.65
@jorgecaballero3445
@jorgecaballero3445 9 лет назад
How did you get the combine table?...because the output from the combine tool is a raster
@furuka
@furuka 9 лет назад
+Jorge Caballero I have the same doubt.. did you figure it out?
@souleymanecisse803
@souleymanecisse803 9 лет назад
+Jorge Caballero Just try to change the points into raster and combine the two layers.
@77cobby
@77cobby 7 лет назад
It should be a raster. She is showing the attribute table which she later exported into a dBase table which she named CombineTable.
@asifishtiaque4840
@asifishtiaque4840 7 лет назад
Combine table is just the attribute table of Combine raster.
@i_m_pratt_bratt
@i_m_pratt_bratt 7 лет назад
How the point shapefiles were drawn down by down, like pastures water etc . how to add points to next class, mine coming in one shapefile , not 4 like the video, plz ans
@hamimuidrisa6390
@hamimuidrisa6390 4 года назад
Thanks, but how did you get that matrix table?
@irshadsahil2097
@irshadsahil2097 7 лет назад
thankxx for info. so i have alittle bit of confusion abut the Accuracy Assesment. hw ,plz explain in simple way...
@buklind
@buklind 10 лет назад
Hi thanks for your tutorial. I would like to know if the original Landsat image you used for the accuracy assessment was the same as the one you used to conduct the classification? Thanks
@sholagberutaofeeq4393
@sholagberutaofeeq4393 8 лет назад
Good presentation. . . . .
@nyomanartosuprapto8967
@nyomanartosuprapto8967 8 лет назад
Its nice and very good tutorial. But if i want to make a validation using the real data field. How i should define the distribution of data field? Thank you
@MounirKarim7
@MounirKarim7 9 лет назад
Very useful, thanks.
@cindynguku2409
@cindynguku2409 8 лет назад
how did the raster test points layer get displayed into the different classes coz mine is a greyscale color ramp
@ernestg7466
@ernestg7466 7 лет назад
Muchas gracias, genial el tutorial :)
@abebemulugeta4622
@abebemulugeta4622 8 лет назад
thanks i found it useful.
@Husamadin
@Husamadin 8 лет назад
thanks for this great explination, and please, could you tell me about the reference which report the number of reference points for each class??
@hakiyusdinar_bgr1
@hakiyusdinar_bgr1 7 лет назад
Good presentation. . . . .may ihave a pdf version of this tutorial, please ?
@bernardasiedu8828
@bernardasiedu8828 8 лет назад
This has been useful, but my Pivot table does not display well in excel when i export, no columns just a jumble of numbers, although i used the comma, all files format. I am sure missing something. Any ideas
@tessboada3373
@tessboada3373 8 лет назад
Are there commas mixed in with the numbers? you may need to go to the Data tab and use the Text to columns tool to separate the numbers based on the columns.
@bernardasiedu8828
@bernardasiedu8828 8 лет назад
Thanks Tess, i used the Text import wizard in Excel and have been able to solve it. Very nice of you though.
@tseveengerelbatnyam291
@tseveengerelbatnyam291 6 лет назад
Thank you! Very much
@josephngyabiya2269
@josephngyabiya2269 7 лет назад
thanks for the tutorial.....
@mayararocha7742
@mayararocha7742 7 лет назад
Hello ... I need to make a matrix of confusion and kappa index, help me
@NandaMineirissima
@NandaMineirissima 8 лет назад
Thanks a lot!
@jairofelipecamargo2404
@jairofelipecamargo2404 6 лет назад
muchas gracias
@mahadeibnsalam6735
@mahadeibnsalam6735 7 лет назад
Combining reference points and classified images didn't work for me. Didn't get the expected table. what to do
@77cobby
@77cobby 7 лет назад
What did your table look like? I was confused at first, too, because my table had more columns than hers. However, this was correct and made sense because I had more land cover types than her.
@mahadeibnsalam6735
@mahadeibnsalam6735 7 лет назад
the column for classified image is not showing up...i did a MNDWI(modified normalized water index)and supervised classification to separate land and water
@mahadeibnsalam6735
@mahadeibnsalam6735 7 лет назад
It worked!!!!! the problem was that i used another software rather than arc gis for supervised classification.. i re worked the classification in arc gis and then the combined thing just worked like a charm !!!
@afeworkabate810
@afeworkabate810 7 лет назад
pls any one how to select multiple point on suitable site selection
@JocileneDB
@JocileneDB 8 лет назад
Muito bom! Obrigada :)
@nayannebenfica6265
@nayannebenfica6265 7 лет назад
Joci, boa noite. Vi que vc também ta tentando fazer a amostra dos pontos. Depois que ela faz o da agua vc entendeu qual procedimento??? No video so aparece todas as amostras.
@JocileneDB
@JocileneDB 7 лет назад
Boa tarde Nayanne, faz um tempo que vi esse vídeo. Poderia indicar a parte do vídeo que ela mostra isso? Tentarei responder se souber.
@mayararocha7742
@mayararocha7742 7 лет назад
Nayanne... Você conseguir fazer a matriz de confusão e calcular o Índice de Kappa?
@GregBreak
@GregBreak 7 лет назад
reference for k-coefficient?
@irshadsahil2097
@irshadsahil2097 7 лет назад
thankxx for info. so i have alittle bit of confusion abut the Accuracy Assesment. hw ,plz explain in simple way...
@irshadsahil2097
@irshadsahil2097 7 лет назад
thankxx for info. so i have alittle bit of confusion abut the Accuracy Assesment. hw ,plz explain in simple way...
@irshadsahil2097
@irshadsahil2097 7 лет назад
thankxx for info. so i have alittle bit of confusion abut the Accuracy Assesment. hw ,plz explain in simple way...
@irshadsahil2097
@irshadsahil2097 7 лет назад
thankxx for info. so i have alittle bit of confusion abut the Accuracy Assesment. hw ,plz explain in simple way...
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