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Hi All,
I want to do a ZProjection of Stacked UltraSound Images. For each image in
the stack, I selected ROI by set pixel values of non ROI to zero.
Basically, I want to get the average intensity projection of these ROIs.
However, the built in ZProject does not fit what I want. Basically, the
"ZProject- Average Intensity" function do the averages on all the image
frame that not only contain ROIs.
To make the average only for the ROIs, I changed the ZProjector.java a
little bit in the average that only counted the non-zero pixel values (my
ROI).
the basic change is
kgood=0;
for(int i=0; i<len; i++) {
if (fpixels[i] > 0) kgood=kgood+1;
}
fnum=kgood;
Then I replace the ij.jar with the new ZProjector.class and
ZProjector$AverageIntensity.class. However, when I restart ImageJ and do
the ZProjection, the average is not based on my ROI but still for all
pixels.
My question is that how can I modify the class file in ij.jar, and ImageJ
can recognize this change. I also did one thing is to rename the ZProjector
as ZProjector_Shen.java and saved it in the folder "plugins". However, when
I run the "ZProjector_Shen" in the Plugins menu, an error message comes out
as:
Plugin or class not found: "ZProjector_Shen"
(java.lang.NoClassDefFoundError: ZProjector_Shen (wrong name:
ij/plugin/ZProjector_Shen))
But I am sure the ZProjector_Shen.class in there, otherwise it won't shown
in the Plugins menubar. Anyone knows why this error message came?
Thanks a lot,
Jason
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