comp.lang.idl-pvwave archive
Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado

Home » Public Forums » archive » how do i read compressed tiff files?
Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend 
Switch to threaded view of this topic Create a new topic Submit Reply
how do i read compressed tiff files? [message #14088] Mon, 25 January 1999 00:00 Go to next message
L. Charles Burgwardt is currently offline  L. Charles Burgwardt
Messages: 4
Registered: January 1999
Junior Member
How do i read a compressed tiff file in IDL?
When I try to read a compressed file from either the command line of in
a program I get this error message:

IDL> image=READ_TIFF(filename,r,g,b)

% READ_TIFF: READ_TIFF: Images must be un-compressed
% Error occurred at: READ_TIFF 268
C:\RSI\IDL50\lib\read_tiff.pro
% $MAIN$
% Execution halted at: $MAIN$

Charlie B.
Re: how do i read compressed tiff files? [message #14153 is a reply to message #14088] Tue, 26 January 1999 00:00 Go to previous message
Burgwardt is currently offline  Burgwardt
Messages: 1
Registered: January 1999
Junior Member
David,

No I am afraid I have version 5.02. I am in communication with rsinc about it.

By the way i tried the triangulation command to find perimeter and couldn't
get it to work right. That last number it returns: boundary, is way too big.
It turns out convex hull is not what I want anyway. I want the count of
boundary pixels including those along the edge of a notch in the boundary -
and convex hull won't give me that, it spans the opening of the notch. I came
up with a way to shift my connected component one pixel up, down, right, left,
and identify 4-neighbor boundary pixels that way.

I would like to understand the boundary component of the triangulation command
better though.

Charlie B.

David Fanning wrote:

> L. Charles Burgwardt (burgward@kodak.com ) writes:
>
>> How do i read a compressed tiff file in IDL?
>> When I try to read a compressed file from either the command line of in
>> a program I get this error message:
>>
>> IDL> image=READ_TIFF(filename,r,g,b)
>>
>> % READ_TIFF: READ_TIFF: Images must be un-compressed
>
> Is this IDL 5.2, which is the first version of IDL
> to support compressed TIFF files?
>
> Cheers,
>
> David

--
Charlie B.
To reply by e-mail remove the spam block (SB) from my address.
  Switch to threaded view of this topic Create a new topic Submit Reply
Previous Topic: ? Keyboard events in idl 4.0.1 ?
Next Topic: Undocumented array indexing feature?

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ] [ PDF ]

Current Time: Wed Oct 08 13:43:31 PDT 2025

Total time taken to generate the page: 0.00454 seconds