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Samplin in an image

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Hello frinds..

I want a regullar sampling in an sattelie image like band 6 of landsta ETM..

in this sampling I want extract Latitud and Longitud and DNs to a text file.for example 100 point.

but I want this point have same distances.(1000 meters) and automaticaly extracting.

I want working this file in ARCGIS..

Anybody can help me ? please

thanks for all

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Thank you 3dbu..but I want this operation in a RS software..like ENVI or ERDAS..

this soloution that you tell not correct..I want extract points aoutomaticaly to a text file ..

one column Latitude , one column Longitude and one column Digital numbers of points..

do you undrestand dear?


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