Greetings,
I am trying to use SubHyperstackMaker.makeSubhyperstack to process the hyperstack through the frame dimension. When the number of frames to be extracted is more than a single frame (frames = "1-2" or "1,2") everything seems to work fine. When a single frame (frames = "1") is requested the resultant hyperstack (A1) is all zeros, see Java code below. A second problem that is perplexing and I can not reproduce in a snippet of code is that when attempting to extract a single frame from the aforementioned frame with all zeros, the original contents of the frame is returned, thus the reason for the A2 ImagePlus in the code below. As this is magically working in my original code, I am only interested in why. Just in case your wondering why I would want to do this: The original dataset has many frames of volumes in which some frames/volumes are tagged and some are not. I need to separate the frames/volumes into the two groups and calculate the mean of each group voxel-wise across their volumes. If anyone knows an easier way, I'm all ears. Thanks in advance, Fred import ij.*; import ij.process.*; import ij.gui.*; import java.awt.*; import ij.plugin.*; import ij.plugin.frame.*; import ij.plugin.SubHyperstackMaker.*; public class tmp_Plugin implements PlugIn { public void run(String arg) { String frames = "1"; ImagePlus A = IJ.createHyperStack("A", 128, 128, 1, 1, 2, 32); IJ.run(A,"Set...","value=1 stack"); A.show(); ImagePlus A1 = SubHyperstackMaker.makeSubhyperstack(A,"1","1-1",frames); A1.setTitle("A1"); A1.show(); ImagePlus A2 = SubHyperstackMaker.makeSubhyperstack(A1,"1","1-1",frames); A2.setTitle("A2"); A2.show(); } } -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
Greetings,
Did this email make it through? Is this a bug? I've tested this using 1.51w on a MacOs High Sierra, and on an older version on Linux. Thanks in advance, Fred On Thu, March 15, 2018 6:47 pm, [hidden email] wrote: > Greetings, > > I am trying to use SubHyperstackMaker.makeSubhyperstack to process the > hyperstack through the frame dimension. When the number of frames to be > extracted is more than a single frame (frames = "1-2" or "1,2") everything > seems to work fine. When a single frame (frames = "1") is requested the > resultant hyperstack (A1) is all zeros, see Java code below. > > A second problem that is perplexing and I can not reproduce in a snippet of > code is that when attempting to extract a single frame from the aforementioned > frame with all zeros, the original contents of the frame is returned, thus the > reason for the A2 ImagePlus in the code below. As this is magically working > in my original code, I am only interested in why. > > Just in case your wondering why I would want to do this: > The original dataset has many frames of volumes in which some frames/volumes > are tagged and some are not. I need to separate the frames/volumes into the > two groups and calculate the mean of each group voxel-wise across their > volumes. If anyone knows an easier way, I'm all ears. > > Thanks in advance, > > Fred > > import ij.*; > import ij.process.*; > import ij.gui.*; > import java.awt.*; > import ij.plugin.*; > import ij.plugin.frame.*; > import ij.plugin.SubHyperstackMaker.*; > > public class tmp_Plugin implements PlugIn { > > public void run(String arg) { > > String frames = "1"; > > ImagePlus A = IJ.createHyperStack("A", 128, 128, 1, 1, 2, 32); > IJ.run(A,"Set...","value=1 stack"); > A.show(); > ImagePlus A1 = SubHyperstackMaker.makeSubhyperstack(A,"1","1-1",frames); > A1.setTitle("A1"); > A1.show(); > ImagePlus A2 = SubHyperstackMaker.makeSubhyperstack(A1,"1","1-1",frames); > A2.setTitle("A2"); > A2.show(); > > } > > } > -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
In reply to this post by Fred Damen
> On Mar 15, 2018, at 7:47 PM, Fred Damen <[hidden email]> wrote:
> > Greetings, > > I am trying to use SubHyperstackMaker.makeSubhyperstack to process the > hyperstack through the frame dimension. When the number of frames to be > extracted is more than a single frame (frames = "1-2" or "1,2") everything > seems to work fine. When a single frame (frames = "1") is requested the > resultant hyperstack (A1) is all zeros, see Java code below. This bug is fixed in the latest ImageJ daily build (1.52a11). -wayne > A second problem that is perplexing and I can not reproduce in a snippet of > code is that when attempting to extract a single frame from the aforementioned > frame with all zeros, the original contents of the frame is returned, thus the > reason for the A2 ImagePlus in the code below. As this is magically working > in my original code, I am only interested in why. > > Just in case your wondering why I would want to do this: > The original dataset has many frames of volumes in which some frames/volumes > are tagged and some are not. I need to separate the frames/volumes into the > two groups and calculate the mean of each group voxel-wise across their > volumes. If anyone knows an easier way, I'm all ears. > > Thanks in advance, > > Fred > > import ij.*; > import ij.process.*; > import ij.gui.*; > import java.awt.*; > import ij.plugin.*; > import ij.plugin.frame.*; > import ij.plugin.SubHyperstackMaker.*; > > public class tmp_Plugin implements PlugIn { > > public void run(String arg) { > > String frames = "1"; > > ImagePlus A = IJ.createHyperStack("A", 128, 128, 1, 1, 2, 32); > IJ.run(A,"Set...","value=1 stack"); > A.show(); > ImagePlus A1 = SubHyperstackMaker.makeSubhyperstack(A,"1","1-1",frames); > A1.setTitle("A1"); > A1.show(); > ImagePlus A2 = SubHyperstackMaker.makeSubhyperstack(A1,"1","1-1",frames); > A2.setTitle("A2"); > A2.show(); > > } > > } > > -- > ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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