[ImageJ-bugs] [Bug 1032] I'm trying to merge two images (1 gb each, tiff files) and Image J processess the top half of the image while the bottom is black.

[bugzilla at fiji.sc]

http://fiji.sc/bugzilla/show_bug.cgi?id=1032

--- Comment #8 from Wayne Rasband <wsr at nih.gov> ---
Does the following test macro work as expected on your system? I attached a
screenshot that shows what the merged image created by the macro should look
like. Before running the macro, you should upgrade to the latest ImageJ daily
build (1.49q15). It fixes a bug that caused extremely large images (e.g.,
30000x30000) to not be displayed correctly because the minimum magnification
was 3.1%. Also, the "Merge Channels" command now deletes the source images only
after displaying the composite image. To upgrade, use the Help>Update ImageJ
command and select "daily build" from the drop down menu. 

    MB = 850;
    w = sqrt(MB*1024*1024);
    doCommand("Monitor Memory...");
    newImage("c1", "8-bit ramp", w, w, 1);
    newImage("c2", "8-bit ramp", w, w, 1);
    run("Rotate 90 Degrees Right");
    run("Merge Channels...", "c1=c1 c2=c2 create");

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