2.1.0.40: Warning for using USM in queue - FIXED in 2.1.1.9

[afx]

Hi,
when using USM in queues that downsize images, this can create tile artifacts (little white strips). Both on Windows and Linux and therefore I assume on MacOS as well.

So use some post processing script for sharpening (imagemagick works just fine).

cheers
afx

[Hobgoblin]

Hi,
when using USM in queues that downsize images, this can create tile artifacts (little white strips). Both on Windows and Linux and therefore I assume on MacOS as well.

So use some post processing script for sharpening (imagemagick works just fine).

cheers
afx

Do you have an example script, or command line, for Imagemagik sharpening?
I have an old 'nconvert' one from Bibble days, but can't seem to find one for Imagemagik.

Any pointers appreciated.
R.

[afx]

Don't have my script handy at the moment. But me thinks just selecting mogrify as the command and then using something like

Code: Select all

-unsharp 6x2+0.3+0 -unsharp 0.4x0.4+4+0.01 %1

in the parameter line should work (copied from a script from Bernd).

An alternative would be to configure a batch queue that does not resize but uses ImageMagick for resizing which defaults to Lanczos, which is a bit slow but does not need extra sharpening.
(There was a lengthy thread about this in the B5 forums).

cheers
afx

[pgman]

Sorry, but what is USM?

Thanks

Syv

[afx]

UnSharp Mask (in the post processing options).

cheers
afx

[Hobgoblin]

Don't have my script handy at the moment. But me thinks just selecting mogrify as the command and then using something like

Code: Select all

-unsharp 6x2+0.3+0 -unsharp 0.4x0.4+4+0.01 %1

in the parameter line should work (copied from a script from Bernd).

An alternative would be to configure a batch queue that does not resize but uses ImageMagick for resizing which defaults to Lanczos, which is a bit slow but does not need extra sharpening.
(There was a lengthy thread about this in the B5 forums).

cheers
afx

Thanks, I'll have a play around.
Alas the Bibble5 forums seem to have vanished from the face of the earth - not even on Wayback machine.

R.

[The Doc]

I wonder whether this is what I am seeing when converting Sony RX100 II files. I thought it was a bug specific to Sony RX100II files.

[afx]

Nope. It can happen with JPGs as well.

cheers
afx

[The Doc]

Thanks afx

My issue appears to concern resizing, not sharpening.

Michael

[afx]

Resize alone does not consistently trigger this.
Does it on your files? Can you make one available.

cheers
afx

[The Doc]

Resize alone does trigger it. Image in the other thread, which I know you have now seen.

regards

M

[afx]

Seems fixed in 2.1.1.9

cheers
afx