[GRASS-user] counting plants

GRASS GRASS user
1

Dear friends, I hope to be good! I use a translator, I excuse my bad writing in English

I have a question, it is possible if I have an image or aerial photo of oil palm to cite one case performed automatically count plants?

attached a sample image

Muchas gracias

Eddison
Costa Rica

(attachments)

conteo_opt.jpg
palma.png

2

Hello, Eddison
Yes, it is possible if your aerial photo is georeferenced you may use object-based image analysis

http://grasswiki.osgeo.org/wiki/Image_classification#Object-based_classification
http://www.gim-international.com/content/article/object-based-image-analysis

Best regards,

Maria V. Kozlova

/------------------------------------
Information System Lab. (ISysLab)
State Oceanographic Institute,
Kropotkinsky per., 6,
MOSCOW, 119034,
RUSSIA

tel. +7 499 246 6448
fax. +7 499 246 7288
mailto: kclo@yandex.ru
------------------------------------/

12.02.2016, 21:59, “Eddison Araya” eddisonjose@gmail.com:

Dear friends, I hope to be good! I use a translator, I excuse my bad writing in English

I have a question, it is possible if I have an image or aerial photo of oil palm to cite one case performed automatically count plants?

attached a sample image

Muchas gracias

Eddison
Costa Rica

,

grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

3

Hi,

I was playing with this topic couple of years ago (about ten :-D) and prepared some filters which worked quite well…

Anyway, best results I got with such type of data was: identify local maximal values and count the pixels

just small hint

pá 12. 2. 2016 v 20:34 odesílatel Kozlova Maria <kclo@ya.ru> napsal:

Hello, Eddison
Yes, it is possible if your aerial photo is georeferenced you may use object-based image analysis

http://grasswiki.osgeo.org/wiki/Image_classification#Object-based_classification
http://www.gim-international.com/content/article/object-based-image-analysis

Best regards,

Maria V. Kozlova

/------------------------------------
Information System Lab. (ISysLab)
State Oceanographic Institute,
Kropotkinsky per., 6,
MOSCOW, 119034,
RUSSIA

tel. +7 499 246 6448
fax. +7 499 246 7288
mailto: kclo@yandex.ru
------------------------------------/

12.02.2016, 21:59, “Eddison Araya” <eddisonjose@gmail.com>:

Dear friends, I hope to be good! I use a translator, I excuse my bad writing in English

I have a question, it is possible if I have an image or aerial photo of oil palm to cite one case performed automatically count plants?

attached a sample image

Muchas gracias

Eddison
Costa Rica

,

grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

4

Hello, thank you very much for your time and kindness, I’m from Costa Rica and use a translator from Google.

I really need to learn how to perform this process, I work for a university and it is necessary in research projects in agriculture to help farmers.

In another email I’ll send some data I want to do.

Thanks for your time

Eddison

Hola, muchas gracias por tu tiempo y amabilidad, soy de Costa Rica y uso un traductor de Google.

Realmente necesito aprender a realizar ese proceso, trabajo para una Universidad y es necesario en proyectos de investigación en agricultura para ayudar a los agricultores.

En otro correo te mandaré unos datos de lo que deseo hacer.

Gracias por tu tiempo

Eddison

···

2016-02-13 7:03 GMT-06:00 Jachym Cepicky <jachym.cepicky@gmail.com>:

Hi,

I was playing with this topic couple of years ago (about ten :-D) and prepared some filters which worked quite well…

Anyway, best results I got with such type of data was: identify local maximal values and count the pixels

just small hint

pá 12. 2. 2016 v 20:34 odesílatel Kozlova Maria <kclo@ya.ru> napsal:

Hello, Eddison
Yes, it is possible if your aerial photo is georeferenced you may use object-based image analysis

http://grasswiki.osgeo.org/wiki/Image_classification#Object-based_classification
http://www.gim-international.com/content/article/object-based-image-analysis

Best regards,

Maria V. Kozlova

/------------------------------------
Information System Lab. (ISysLab)
State Oceanographic Institute,
Kropotkinsky per., 6,
MOSCOW, 119034,
RUSSIA

tel. +7 499 246 6448
fax. +7 499 246 7288
mailto: kclo@yandex.ru
------------------------------------/

12.02.2016, 21:59, “Eddison Araya” <eddisonjose@gmail.com>:

Dear friends, I hope to be good! I use a translator, I excuse my bad writing in English

I have a question, it is possible if I have an image or aerial photo of oil palm to cite one case performed automatically count plants?

attached a sample image

Muchas gracias

Eddison
Costa Rica

,

grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user