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Metereological Cloud Size Detection [message #34473]

Fri, 21 March 2003 03:05

colinduff65
Messages: 2
Registered: March 2003

Junior Member

hi

i am looking for an IDL routine that will automatically scan an image
and detect different cloud regions (image is a cloudmask ie pixel is
either cloud or clear(0 or 1) ) and calculate their size. I can use
the Find_Boundary routine but this works on only one region - the
Where function was used to detect the cloud pixels for the whole image
but only one cloud boundary can be detected.

any ideas

Colin

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Re: Metereological Cloud Size Detection [message #34555 is a reply to message #34473]

Tue, 25 March 2003 08:10

colinduff65
Messages: 2
Registered: March 2003

Junior Member

thanks for the info

i had tried to use LABEL_REGION but was getting weird results

putting an empty block around the data did the trick

cheers

Colin

colinduff65@hotmail.com (Colin) wrote in message news:<93d922cc.0303210305.279796fb@posting.google.com>...
> hi
>
> i am looking for an IDL routine that will automatically scan an image
> and detect different cloud regions (image is a cloudmask ie pixel is
> either cloud or clear(0 or 1) ) and calculate their size. I can use
> the Find_Boundary routine but this works on only one region - the
> Where function was used to detect the cloud pixels for the whole image
> but only one cloud boundary can be detected.
>
> any ideas
>
> Colin

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