can't read Sun raster file (8-bit compressed RGB)
Posted: 2012-09-20T21:36:04-07:00
Hi all,
My latest version of IM (6.7.9-5) can no longer read Sun rasterfiles I am creating. Previous versions of IM (at least up to and including whatever IM was distributed with CentOS 5.7) had no trouble with these files, and I can still display them with eog (CentOS 6.3). I can also display them on my Mac ('open' loads them into the OpenOffice draw program). Here's some output on my CentOS 6 system:
% file *ras
4075x4792x8bit.ras: Sun raster image data, 4075 x 4792, 8-bit, compressed, RGB colormap
% display 4075x4792x8bit.ras
display: improper image header `4075x4792x8bit.ras' @ error/sun.c/ReadSUNImage/403.
% eog 4075x4792x8bit.ras ### this works fine!
I have left a copy of the file at ftp://ftp.soest.hawaii.edu/rbd/4075x4792x8bit.ras for anyone who wants to take a look.
I need IM to convert these files to JPEG, which it used to do, but no longer does:
% convert 4075x4792x8bit.ras xx.jpg
convert: improper image header `4075x4792x8bit.ras' @ error/sun.c/ReadSUNImage/403.
If anyone can tell me how to get this to work (or suggest another way to do the conversion under CentOS via a command-line tool without displaying it) that would be much appreciated. Thanks!
Roger Davis
~
My latest version of IM (6.7.9-5) can no longer read Sun rasterfiles I am creating. Previous versions of IM (at least up to and including whatever IM was distributed with CentOS 5.7) had no trouble with these files, and I can still display them with eog (CentOS 6.3). I can also display them on my Mac ('open' loads them into the OpenOffice draw program). Here's some output on my CentOS 6 system:
% file *ras
4075x4792x8bit.ras: Sun raster image data, 4075 x 4792, 8-bit, compressed, RGB colormap
% display 4075x4792x8bit.ras
display: improper image header `4075x4792x8bit.ras' @ error/sun.c/ReadSUNImage/403.
% eog 4075x4792x8bit.ras ### this works fine!
I have left a copy of the file at ftp://ftp.soest.hawaii.edu/rbd/4075x4792x8bit.ras for anyone who wants to take a look.
I need IM to convert these files to JPEG, which it used to do, but no longer does:
% convert 4075x4792x8bit.ras xx.jpg
convert: improper image header `4075x4792x8bit.ras' @ error/sun.c/ReadSUNImage/403.
If anyone can tell me how to get this to work (or suggest another way to do the conversion under CentOS via a command-line tool without displaying it) that would be much appreciated. Thanks!
Roger Davis
~