Moire? .. or what?

[Seachicken]

I'm getting magenta/green colored spots in hair.. anyone know what this is, and better still how to avoid it/or get rid? Is this moire? Or a jpg artifact (I've only seen this in jpgs so far).

Not a huge problem, except on one image I had.

(the image below is upsampled 2x to make these easier to see).

http://www.andrewfinch.com/blodge.jpg

[Seachicken]

http://www.andrewfinch.com/nomoire.jpg

It's moire. And this (http://www.atris.it/temp/s2/S2ProMr.htm) fixes it easily.

:)

[Tom V]

I could not download the Photoshop Action file. All I got was a screen full of text. Any idea where to get the Moire Reducer Action?

[Swampy]

Originally posted by Tom Voegeli
I could not download the Photoshop Action file. All I got was a screen full of text. Any idea where to get the Moire Reducer Action?

I didn't have a problem grabbing it. It must be the way your internet browser handles that particular type of file. I've zipped it up and put it up on my site. You should be able to get it from here:

http://theswampbbs.com/s2/moire_reducer.zip

I even put the instructions in a text file with the action file with the credit line as well.

Hope this helps ya.

[Swampy]

Originally posted by Seachicken

It's moire. And this (http://www.atris.it/temp/s2/S2ProMr.htm) fixes it easily.

:)

Perfect. Worked for me (First one did anyway). The Second one turned all the "moire" into green highlights. Thank you so much! It would appear, while I am still trying to learn this camera, that most of my pictures have this, Red and Green in my daughters blonde hair and what appears to be purple and red in my black and white speckled shorthair pointer.

Thanks again!

Bryan

[Tom V]

Thanks swampy, I figured out how to download the file, rather than just clicking on the link. I found it to work great.

I used the actions on a recent "legs" shot, where the model is wearing fishnet stockings. As we know, the moire S2 users get is most often on diagonal lines, the worst being 45° with all the red and green, or blue and yellow artifacts. Fishnet stockings are all 45° angles, and everything had a moire.

The Photoshop action Moire Reducer eliminated the moire, without any harm to the rest of the photo --- AMAZING!:D

(Be careful using this on layered Photoshop files, it wants to flatten the layers, but you can override this portion of the action.)

My sample shows the moire on the left, and fixed with Moire Reducer on the right.

[Swampy]

Originally posted by Tom Voegeli
My sample shows the moire on the left, and fixed with Moire Reducer on the right.

Forget the moire...Where's the full sized pictures of all the women in nothing but fishnets! :D

[Tom V]

Swampy,

I appreciate your interest (for technical reasons) in the entire shot. Since I thought this might be getting a little off-topic for the "Morie? ...or what?" thread, I have posted them here: http://www.s2pro.com/forums/showthread.php?s=&threadid=415

Walk on over and have a peek at the TEST fishnet legs shot, and the FINAL nice legs shot.

[memobug]

Thank you for the link!

I think that this is a great tool if you use it judiciously. In the example photo on the linked website http://www.atris.it/temp/s2/S2ProMr.htm

The anti-moire action really killed the luster of the pearls. They went from "Mikimoto" pink on the left photo "Mickey Mouse" plastic on the right.

It would be a simple thing to selectively de-moire the portions of the image that need it using a tool like this, provided you understand what it is doing.

Regards,

Matt

[RChan]

Hi !

This is not a moire problem , you can see this only when you display with an enlargement of over x2 times right ? Can you see this when you print it ?

That's shows the difference in between digital camera CCD and scanner CCD in their design and concept . You don't have the same problem by using a scanner , such RGB shift is different
compared to those shown in digital camera but exist also if you
display with an enlargement of over x4 times at high resolution .

Don't worry ! Once you print it at real size (X1) , you won't see it and that's the most important !

[Swampy]

Originally posted by RChan
Hi !

This is not a moire problem , you can see this only when you display with an enlargement of over x2 times right ?

I saw this moire at any display level. 25%, 50%, 100%, anything in between... For me, if it shows on the screen, it's bad enough to fix whether it shows in the print or not. I do more with slideshows on screen than I do in print, so having it not show on screen is important to me.

Bryan