MantisBT - ITK
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ID	Project	Category	View Status	Date Submitted	Last Update
0010393	ITK		public	2010-03-09 08:03	2010-11-20 12:21

Reporter	Jef
Assigned To	Bill Lorensen
Priority	normal	Severity	major	Reproducibility	always
Status	assigned	Resolution	open
Platform		OS		OS Version
Product Version	ITK-3-16
Target Version		Fixed in Version
Resolution Date
Sprint
Sprint Status

Summary	0010393: itkDownsampleImageFilter is producing an output incorrect along Y-axis
Description	The filter produces an image in which the original image content is not fully included along the Y-axis. Instead the result seems stretched along that dimension, and only half is portraited (see screenshot). The change in behavior happened somewhere between ITK 3.16 and ITK 3.8
Steps To Reproduce
Additional Information	Information concerning the attached screenshot As the names of the images (visible in the bottom left corner of the images) suggest, the top left picture is the input image, top right the output image when using the 3.8 version of the DownsampleImageFilter, bottom left the output image when using the 3.16 version of the DownsampleImageFilter and bottom right the output image when using the 3.16 version of the UpsampleImageFilter. The origin remains unchanged for all images (even with the centered coordinate system). The size and spacing of the images are, respectively: 209x155x169 2x2x2 (input) 104x77x84 4x4x4 (output_downsample_3_8) 104x77x84 4x4x4 (output_downsample_3_16) 418x310x338 1x1x1 (output_upsample_3_16) It seems that the images have the correct size and spacing. However based on their appearance, the "image content" is incomplete in the case of the 3.16 version. Only half of the image is shown in the Y-dimension. This is not the case for the 3.8 version or for the upsampler. I am unable to say if these images are correct however.
Tags	No tags attached.
Relationships
Attached Files	Screenshot-vv_DownsampleImageFilter (203,833) 2010-03-09 08:03 https://public.kitware.com/Bug/file/2941/Screenshot-vv_DownsampleImageFilter

Issue History
Date Modified	Username	Field	Change
2010-03-09 08:03	Jef	New Issue
2010-03-09 08:03	Jef	File Added: Screenshot-vv_DownsampleImageFilter
2010-11-02 14:05	Hans Johnson	Status	new => assigned
2010-11-02 14:05	Hans Johnson	Assigned To	=> Hans Johnson
2010-11-20 12:20	Hans Johnson	Assigned To	Hans Johnson => Bill Lorensen
2010-11-20 12:21	Hans Johnson	Note Added: 0023464

Notes