[Insight-users] Meta and raw Images are displayed reversally

[Fucang Jia]

Hi, everyone,

I use MetaImageImporter to produce a .mhd file associated with original raw 
format file, then use MetaImageViewer, MetaImageColorViewer, 
ImageRegistration, MutualInformationEuler2DRegistration,RawImageReaderViewer 
to view it, but the image is reverally displayed, that is to say, the upper 
becomes the nether, the nether becomes the upper, it seems that the file 
pointer reads a Windows BMP file (begins from the last line). This case not 
only happens on Windows, but also on Linux.

The .mhd(a) images can be opened right by ImageRegistration2D, 
RegionGrowingSegmentation2D, Curves2DExtractor, GaussianFilter2D.

I use "RawImageReadWritePNG fixed.raw 200 300 1 fixed_new", the 
fixed_new000.png is reversal.

If I write a header.txt like this:

P5
200 300
255

and use "cat header.txt fixed.raw > fixed.pgm", the fixed.pgm can be display 
normally by other image display software.

A .mhd file is as follows:

NDims = 2
DimSize = 200 300
ElementSpacing = 1 1
Position = 0 0
ElementByteOrderMSB = False
ElementType = MET_UCHAR
ElementDataFile = fixed.raw

Can anyone point out why it is the case?

Thank you very much!

Fucang

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