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Re: Reading lossless jpeg?
| Re: Reading lossless jpeg? [message #36792] |
Mon, 27 October 2003 07:36 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Andrew Fielding writes:
> I am trying to read in a jpeg format image using read_jpeg routine and
> get error message below.
>
> % READ_JPEG: JPEG error: Unsupported JPEG process: SOF type 0xc3
>
> The images are pretty big so think they might be lossless jpeg. I know
> this was covered in a previous thread but no satisfactory answer
> seemed to have been found.
>
> Paint Shop Pro does not have any problem reading in the images.
I think this might be a case of Paint Shop Pro being
well ahead of the curve. This does, apparently, refer
to a lossless JPEG format. Perhaps you can save the images
in Paint Shop Pro in a lossless PNG format that can be
read by IDL.
Cheers,
David
--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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