| Trying to read very big image in IDL [message #68929] |
Tue, 08 December 2009 13:02  |
Alexander Sousa
Messages: 3
Registered: December 2009
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Junior Member |
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Hello everyone, i've found much of the information found here quite
useful, which is why i require of your help for the following (sorry
if my english is somewhat poor):
-I'm trying to read an awfully large image (14402 cols, 9602 rows, 2
bands, floating-point data), stored in tiff format, the problem is:
when i try to read it using the READ_TIFF IDL throws an error saying
it can't allocate memory to make such array... I can easily export the
image to different data types, so feel free to advice a format
migration; i'd be very grateful if you provided me with an efficient
way to achieve this task.
Thank you, Alexander
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| Re: Trying to read very big image in IDL [message #69139 is a reply to message #68929] |
Fri, 11 December 2009 13:04  |
greg.addr
Messages: 160
Registered: May 2007
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Senior Member |
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>>> Hello everyone, i've found much of the information found here quite
>>> useful, which is why i require of your help for the following (sorry
>>> if my english is somewhat poor):
>>> -I'm trying to read an awfully large image (14402 cols, 9602 rows, 2
>>> bands, floating-point data), stored in tiff format, the problem is:
>>> when i try to read it using the READ_TIFF IDL throws an error saying
>>> it can't allocate memory to make such array... I can easily export the
>>> image to different data types, so feel free to advice a format
>>> migration; i'd be very grateful if you provided me with an efficient
>>> way to achieve this task.
>
>>> Thank you,Alexander
If you're using 32-bit windows, you may be hitting the 1 GB memory
allocation limit. If you could export your two bands as separate
files, you'd likely avoid this.
Greg
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