Posted by
Cammer, Michael on
URL: http://imagej.273.s1.nabble.com/Log-Math-Function-tp5020510p5020526.html
Am I missing something, or can these arguments be corrected with the following simple macro code?
newImage("256x256", "8-bit ramp", 256, 256, 1);
run("32-bit");
run("Log");
run("Divide...", "value=2.302585"); // constant to convert to base 10
resetMinAndMax();
Michael Cammer, Sr Research Scientist, DART Microscopy Laboratory
NYU Langone Health, 540 First Avenue, SK2 Microscopy Suite, New York, NY 10016
C: 914-309-3270
[hidden email] http://nyulmc.org/micros http://microscopynotes.com/
-----Original Message-----
From: ImageJ Interest Group [mailto:
[hidden email]] On Behalf Of Michael Schmid
Sent: Wednesday, April 18, 2018 7:07 AM
To:
[hidden email]
Subject: Re: Log Math Function
Hi Jacob,
I think it would be a nuisance to have a pop-up dialog telling me that 'log' is natural logarithm, and/or that scaling was done. I would have to click it away.
To me, it is pretty obvious that scaling needs to be done because an 'integer' image type (8 bit, 16 bit) would otherwise have very poor resolution for the log.
Automatically converting to 32 bits would make existing macros work incorrectly if they use this function and rely on the current behavior.
So I don't see much room for improvement. One could think of displaying a message in the status line, but probably it would be overlooked anyhow.
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