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Re: diferent results in program and envi [message #55103 is a reply to message #55100]

Wed, 01 August 2007 08:04

Jeff N.
Messages: 120
Registered: April 2005

Senior Member

On Aug 1, 4:58 am, "skymaxw...@gmail.com" <skymaxw...@gmail.com>
wrote:
> Hello. I have some images and some GCP for each. I georeferenced some
> of them by ENVI.
> now i want to do this by program. But my results are different. Why ?
> Here is fragment of my source code
>
> ;;;;;;;;;;;;;;;;;;
> ...
> pts0=[[geo_points[0,0],geo_points[1,0],0.0,0.0],$
> [geo_points[0,1],geo_points[1,1],ns-1,0.0],$
> [geo_points[0,2],geo_points[1,2],0.0,nl-1],$
> [geo_points[0,3],geo_points[1,3],ns-1,nl-1],$
> print,'pts0'
> print,pts0
>
> ;units=ENVI_TRANSLATE_PROJECTION_UNITS('Degrees')
> proj=ENVI_PROJ_CREATE(/GEOGRAPHIC)
> pixel_size=[0.00011710,0.00009006]
> ;proj=ENVI_PROJ_CREATE(/UTM,ZONE=UTM_Zone,DATUM='WGS-84')
>
> ENVI_DOIT,'ENVI_REGISTER_DOIT',$
> W_FID=fid,$
> W_POS=pos,$
> W_DIMS=dims,$
> METHOD=5,$
> PIXEL_SIZE=pixel_size,$
> PTS=pts0,$
> PROJ=proj,$
> R_FID=r_fid,$
> OUT_NAME='D:\pts0',$
> OUT_BNAME='my transform'
> ;;;;;;;;;;;;;;;;;;;;;;;;;
>
> and another question how define pixel size by my program?
>
> Thanks

How are the results different? How do you know which answer is the
right one? (in other words: what if you're doing it wrong by hand?)
And aren't you defining a pixel size in the code you just posted? Or
are you asking how to calculate it I guess?

Jeff

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[Message index]

		Re: diferent results in program and envi By: Jeff N. on Wed, 01 August 2007 13:05
		Re: diferent results in program and envi By: Jean H. on Wed, 01 August 2007 12:24
		Re: diferent results in program and envi By: skymaxwell@gmail.com on Wed, 01 August 2007 11:09
		Re: diferent results in program and envi By: skymaxwell@gmail.com on Wed, 01 August 2007 08:44
		Re: diferent results in program and envi By: Jeff N. on Wed, 01 August 2007 08:04

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