Unexpected image behaviors in Viewers (#65) · Issues · CamiTK / CamiTK Community Edition

Unexpected image behaviors in Viewers

About you

Bug filed on Bugzilla by @jaffarda on 2016-04-22

Overview:

when looking at an image in 2D viewer (axial for exemple)

pb1/ border voxels are only half-sized (both in 2D and in 3D)

pb2/ border box does not adjust to displayed image

pb3/ picking is not possible a all places inside pixels

pb4/ picking is possible outside the image

pb5/ picking actor (crossing bars are not always visible)

attached images are very small in number of voxels for a better view provided:

testImage.bmp (the expected visble result)

testData.raw (raw file for 2D images)

testData3D.raw (raw file for 3D image)

test1.mhd ( image 5x5x1 black & white grid, spacing 10x10x1)

test2.mhd ( image 5x5x1 black & white grid, spacing 1x1x1)

test_3D.mhd ( image 5x5x5 black & white grid, spacing 1x1x1)

testImages.zip

Steps to Reproduce

step 1/ Load test1.mhd in camitk

step 2/ click on centralViewer and press I (to toogle off image interpolation)

step 3/ open axial viewer (ctrl + 2)

step 4/ Pick a point (ctrl + click) close to the middle of a pixel

step 5/ Pick a point (ctrl + click) close to the border of a pixel

step 6/ Pick a point (ctrl + click) close to the middle of a pixel but on the outside of the displayed image

step 7/ Load test2.mhd, open axial viewer, toogle off interpolation

step 8/ Pick a point (ctrl + click) close to the middle of a pixel

Actual VS Expected Result

at step 2/ we see pb1 all the pixels are not the same size but they should

at step 3/ we see pb1 all the pixels are not the same size but they should

at step 3/ we see pb2 the border does not match the image but should

at step 5/ we see pb3 picking works close to centre of pixel but nowhere else picking should be available everwhere

at step 6/ we see pb4 it is possible to pick a point outside the image, it should not

at step 8/ we see pb5 when picking works (see with pb3) the actor (small lines) are not visible, it should

Relevant logs and/or screenshots:

See testImages.zip

Interpretation & Possible fixes:

pb1/ maybe miss set of dimensions?

pb2/ probably linked to pb1 the boxing seems to be the good size if pixels were correctly displayed

pb3/ maybe bad use of pixel size?

pb4/ probably linked to pb1 the selection box should be in pixel if pb1

pb5/ no ideas

CamiTK Version:

Filed for CamiTK 3.6, but confirmed still on 4.1.develop

## About you

Bug filed on Bugzilla by @jaffarda on 2016-04-22

## Overview:

> when looking at an image in 2D viewer (axial for exemple)
> - pb1/ border voxels are only half-sized (both in 2D and in 3D)
> - pb2/ border box does not adjust to displayed image
> - pb3/ picking is not possible a all places inside pixels
> - pb4/ picking is possible outside the image
> - pb5/ picking actor (crossing bars are not always visible)

> attached images are very small in number of voxels for a better view
> provided:
> - testImage.bmp (the expected visble result)
> - testData.raw (raw file for 2D images)
> - testData3D.raw (raw file for 3D image)
> - test1.mhd ( image 5x5x1 black & white grid, spacing 10x10x1)
> - test2.mhd ( image 5x5x1 black & white grid, spacing 1x1x1)
> - test_3D.mhd ( image 5x5x5 black & white grid, spacing 1x1x1)

[testImages.zip](/uploads/dbdae0b5992f6f646f9f890d03bd277e/testImages.zip)

## Steps to Reproduce

> - step 1/ Load test1.mhd in camitk
> - step 2/ click on centralViewer and press I (to toogle off image interpolation)
> - step 3/ open axial viewer (ctrl + 2)
> - step 4/ Pick a point (ctrl + click) close to the middle of a pixel
> - step 5/ Pick a point (ctrl + click) close to the border of a pixel
> - step 6/ Pick a point (ctrl + click) close to the middle of a pixel but on the outside of the displayed image
> - step 7/ Load test2.mhd, open axial viewer, toogle off interpolation
> - step 8/ Pick a point (ctrl + click) close to the middle of a pixel

## Actual VS Expected Result

> - at step 2/ we see pb1 all the pixels are not the same size but they should
> - at step 3/ we see pb1 all the pixels are not the same size but they should
> - at step 3/ we see pb2 the border does not match the image but should
> - at step 5/ we see pb3 picking works close to centre of pixel but nowhere else 
> 			picking should be available everwhere 
> - at step 6/ we see pb4 it is possible to pick a point outside the image,
> 			it should not
> - at step 8/ we see pb5 when picking works (see with pb3) the actor (small lines) are not visible, it should

## Relevant logs and/or screenshots:

See [testImages.zip](/uploads/dbdae0b5992f6f646f9f890d03bd277e/testImages.zip)

## Interpretation & Possible fixes:

> - pb1/ maybe miss set of dimensions?
> - pb2/ probably linked to pb1 the boxing seems to be the good size if pixels were correctly displayed
> - pb3/ maybe bad use of pixel size?
> - pb4/ probably  linked to pb1 the selection box should be in pixel if pb1 
> - pb5/ no ideas

## CamiTK Version:

Filed for CamiTK 3.6, but confirmed still on 4.1.develop

Edited Jun 19, 2018 by Emmanuel Promayon