Posted by
Stein Rørvik on
URL: http://imagej.273.s1.nabble.com/Propagate-min-max-does-not-work-via-the-GUI-for-large-16-bit-images-tp5024225.html
There is a problem with the Brightness/Contrast dialog for larger images:
If the image size is 3000 pixels or more wide, the propagate min/max choice does not work.
Instead of propagating the set values, the min/max values of the other images are reset to their min/max pixel value.
If the image size is smaller like 2000 pixels wide then it works ok. I have 16-bit range set to automatic.
I didn't try to investigate at exactly what image size it fails, but the problem is definitely bound to the image size.
I checked the ImageJ version by downgrading and it works as expected in version 1.52r and earlier.
Here is a demo macro to help reproduce the issue:
-----------------------
run("Close All");
run("CT (420K, 16-bit DICOM)");
//width=888 height=495
run("Scale...", "x=4 y=4 interpolation=Bilinear create");
//width=3552 height=1980
run("Tile");
selectWindow("ct.dcm-1.tif");
run("Brightness/Contrast...");
waitForUser("Please Set contrast and select 'Propagate to all images'");
//works until 1.52r
//fails in 1.52s: min/max is reset when Brightness/Contrast is opened; propagate is ok
//fails since 1.52t: min/max is not propagated, other images have instead min/max reset
-----------------------
If you resize to a smaller size like
run("Scale...", "x=2 y=2 interpolation=Bilinear create");
then the problem does not occur.
I am using daily build ImageJ 1.53g with Java 1.8.0_172 on Windows 10/64-bit.
Stein
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