Importing .mha shifts image

[ctrueden]

A report from acramp on the ImageJ forum:

I ran into a problem where the image gets shifted when reading it from a .mha file. A part from the image which should be at the right border is shown on the left border. This issue is only with uncompressed .mha. Compressed .mha or .mhd are read correctly.

How to reproduce:

1. Create Image (File->New->Image...) 400x400, White Background, 1 slice is sufficient.
2. Draw a cross through the whole image (Place line, then Edit->Draw)
3. Save image as .mha (File->Save As->MHD/MHA...)
4. Import image (File->Import->MHD/MHA...)
5. Observe shifted image (as if it uses the header as image information).

The problem is not with the file, which e.g. in ITK-SNAP opens correctly.

[ctrueden]

The bug is likely in the MetaImage_Reader class.

[rcatwood]

+11 months ...
Updated FIJI this morning , this ticket bug is still there.

result.zip

run("Close All");
newImage("Untitled", "8-bit ramp", 512, 512, 1);
makeRectangle(129, 165, 181, 165);
setForegroundColor(255, 0, 0);
run("Draw", "slice");
saveAs("PNG", "./rectpng.png");
run("MHD/MHA ...", "save=./rectmha.mha");
run("Close All");
open("./rectpng.png");
open("./rectmha.mha");
imageCalculator("Subtract create 32-bit", "rectpng.png","rectmha.mha");
selectWindow("Result of rectpng.png");
saveAs("Tiff", "./result.tif");

[rcatwood]

Interestingly, it happens in Windows version but not in the Linux version ... (both updated this morning)

[ctrueden]

+11 months ...

Very soon now, each component's associated wiki page will be auto-updated to reflect reality regarding who is maintaining it, and at what levels.

This component currently lists @jefferis as debugger and reviewer, but I do not know if he is actually investigating bugs like this in practice these days. We may need to adjust the information to reflect the fact that this component is largely unmaintained.