Image format not recognised
joh...@ozemail.com.au
I have aerial photos in ecw format, registered for MapInfo. I can open these on my desktop but not on my laptop. MapInfo gives me an error message"
"Raster engine was unable to recognise image file format. Unable to open table ......."
I am running MapInfo 8.5 and WinXP and am not attempting to open the files from a workspace.
Each image has the the following files
.alg
.ecw
.ers
.eww
.tab
Tab files have the following information:
table
!version 500
!charset WindowsLatin1
!Generated by MapImagery Version 7.000 (Mar 30 2006) http://www.mapimagery.com
!MapImagerySuperSamplingFactor: 8.000000
Definition Table
File "SM1_2.alg"
Type "RASTER"
(380500.125000,6774999.875000) (0.000000,0.000000) Label "Top Left",
(383000.375000,6772499.625000) (80008.000000,80008.000000) Label "Bottom Right",
(383000.375000,6774999.875000) (80008.000000,0.000000) Label "Top Right"
CoordSys Earth Projection 8, 116, "m", 153, 0, 0.9996, 500000, 10000000
Units "m"
I'd be grateful for any answers and solutions
John Elliot
Rodriguez, Pancho (RTX)
In order to open ER Mapper files (alg and ers) you need MapImagery. You can download it free from the web www.mapimagery.com
Pancho Rodriguez
Data Administrator
Rio Tinto Exploration
joh...@ozemail.com.au
Many thanks for the quick reply.
I knew that MaiInfo opens ecw files without MapImagery. However, in this case I did not realise that MapImagery needed to open the ecw image files - presumably because of the other accompanying files (alg ers and eww). I assumed that because there is a TAB file clicking that would open the image. Obviously not so.
I've installed MapImagery and can open the files
Thanks again,
John Elliot
On Thu Feb 28 17:20 , 'Rodriguez, Pancho (RTX)' sent:
Mathew Linnane
I have had the very same issue but reversed!
I can open .ecw images created by ER Mapper in Mapinfo V9 on my laptop (without Mapimagery) but I get the "Raster engine was unable to recognise image file format. Unable to open table ......." on my desktop version of mapinfo V9.
I am not sure if I am getting this error because of the original installation settings of Mapinfo on my desktop
Or
a conflict of previous versions of Mapinfo on my desktop!
Can anyone enlighten me?????
Regards,
Mathew Linnane
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joh...@ozemail.com.au
My solution has been to install MapImagery; I can now open the ecw files without any problems.
Thank you Tony and Pancho for your solutions. Tony, I've downloaded your app "tabs from ecw images" and will give it a try also.
John Elliot