[ITK-users] LabelOverlayImageFilter with a binary mask: everything red

[Alberto Bert]

Hi,

a few updates...

Instead of using .nii, I tried to save the output overlay image in:
 .png  - the resulting image is in grey levels, but I cannot see any red (or other colors)
.dcm - the resulting image looks corrupted both opened with imagej and Osirix

Any ideas?

Thanks
Alberto

> On 28 Jan 2016, at 11:30, Alberto Bert <bert.alberto at gmail.com> wrote:
> 
> Hi all,
> 
> I am trying to produce a coloured overlay between a UInt16 grey-level image and a segmentation mask extracted from such image. The segmentation mask is a UInt8 image valued 1 in the segmented area and 0 elsewhere.
> 
> If I try to:
> 
>  mask_overlay = sitk.LabelOverlay(image, mask, opacity = 0, backgroundValue = 0)   # I am using SimpleITK 0.9.1 with Python 2.7
> 
> and then I write the mask_overlay (as .nii), I get an image almost completely reddish, while I expected to get the original grey-level image, with some red (or other color) corresponding only to the pixels valued 1 in the mask. (I did check the mask itself, and very few pixels are valued 1)
> 
> What am I doing (or expecting) wrong?
> 
> Thank you in advance,
> Best
> Alberto

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