Hi Thomas,
for pixels outside of the translated image, the Image > Transform >
Translate command uses a pixel value of zero. Pixels with a value of
zero usually appear black (white with an inverting LUT). I guess that
this is the two gaps that you refer to.
I could not reproduce the problem of translating the overlay although
the corresponding checkbox was off. Here is an example of what I did
(macro recorded):
run("Blobs (25K)");
makeOval(74, 77, 56, 52);
run("Add Selection...");
run("Translate...", "x=20 y=20 interpolation=Bicubic overlay");
run("Select None");
run("Translate...", "x=-2 y=3 interpolation=Bicubic");
[The overlay (if existing) will be translated in any case, whether
"overlay only" is on or off. With "overlay only", the image will not be
translated.]
Could you please record a case where the problem appears, or otherwise
tell which steps one has to perform to reproduce the problem?
Michael
________________________________________________________________
On 28.09.20 23:05, Thomas Fischer wrote:
> Hi all together,
>
> I tried Image > Transform > Translate and had two problems.
>
> The first time, I did not check "Overlay Only" and the object (a circular
> outline one pixel wide) was moved but the pixels having the minimal value
> for x and y were not processed resulting in an outline with two gaps (X
> Offset = Y Offset = -1).
>
> Then I repeated the process, checked "Overlay Only", and found out that
> this is not what I was heading for.
>
> Finally, I tried again without checking "Overlay Only" but imagej behaved
> as if the box was checked. Leaving imagej and calling it again did not
> change this "stubborn" behaviour.
>
> Thank you, Thomas
>
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