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Help with anti-alias please
Oct 6, 2022 11:00:39 #
User ID wrote:
That is NOT moire. Thaz just your pixels.
Oh! Attached is a very dull day pic which I managed to clean up. You might have saved me a LR sub.
Oct 6, 2022 11:10:04 #
User ID wrote:
That is NOT moire. Thaz just your pixels. It can occur nearly the same in photos from cameras that DO have moire filters.
So - is this sometimes called Jagger?
Oct 6, 2022 11:36:51 #
Delderby wrote:
So - is this sometimes called Jagger?
Never heard it called "Jagger" but since the pixelation at angled hard edges has a "saw tooth" appearance, "Jagger" sounds descriptive to me.
The spacing of the saw tooth "teeth" varies with the angle of the hard edge relative to the grid that is your sensors pixel array. Notice I refer to "hard edge" and do not limit this effect to "straight edge". On a curved hard edge you can readily see the spacing of the "teeth" varying as the curved edge varies its angular relationship to the sensor grid.
A straight hard edge at 45deg to the sensor grid has the most closely spaced teeth ... and vice versa etc etc.
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Oct 6, 2022 11:46:20 #
r1ch
Loc: Colorado
Delderby wrote:
So - is this sometimes called Jagger?
You should have posted a picture because people were just guessing. This is moire and it is considered a form a noise.
https://youtu.be/d99_h30swtM
Oct 6, 2022 11:47:50 #
Oct 6, 2022 15:21:23 #
Delderby wrote:
Oh! Attached is a very dull day pic which I managed to clean up. You might have saved me a LR sub.
Nicely done 💚🍀🍀💚
Oct 6, 2022 17:49:53 #
Delderby wrote:
Thanks for reply. I've been searching Affinity help, but cannot find anything on Moire (or anti alias). I'm looking more closely at filters in the hope of finding something more helpful. Thanks again.
https://forum.affinity.serif.com/index.php?/topic/146818-how-many-ways-to-remove-moire%CC%81-with-affinity-photo/
Try this link. It seems to have worked on the photo supplied.
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Oct 6, 2022 23:02:17 #
Delderby wrote:
Thanks for explanation and advice
I use IrfanView which is free but welcomes contributions. I used it for decades without contributing, but a few years ago, I did contribute.
Anyway, if I need to fix your problem in my photos, I use IrfanView's Median Filter through its Effects menu. It works nicely. Below are two examples. The first one had too much sharpening as a jpeg filel Look at the rocks and dirt bank at the bottom of the photo. Then I applied the median filter at its lowest setting (3) followed by one pass at sharpening. Most of the aliasing artifacts are gone but note that the electrical lines overhead can also be lost in the process. --Richard
Oct 6, 2022 23:44:18 #
Drbobcameraguy wrote:
https://forum.affinity.serif.com/index.php?/topic/146818-how-many-ways-to-remove-moire%CC%81-with-affinity-photo/
Try this link. It seems to have worked on the photo supplied.
Try this link. It seems to have worked on the photo supplied.
Thanks for tip.
Oct 6, 2022 23:47:22 #
Oct 6, 2022 23:56:05 #
Drbobcameraguy wrote:
https://forum.affinity.serif.com/index.php?/topic/146818-how-many-ways-to-remove-moire%CC%81-with-affinity-photo/
Try this link. It seems to have worked on the photo supplied.
Try this link. It seems to have worked on the photo supplied.
Thanks VM
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Oct 7, 2022 05:49:14 #
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