Does Preview Have A Tool For Red Eye Removal On My Mac

Editor’s note: since this tutorial was written, the Red Eye Removal plug-in has been included in the default GIMP package (see Filters → Enhance → Red Eye Removal). This tutorial is still useful if you want to do things by hand.

Intention¶

Red Eye Removal filter is much more intelligent, it provides the optimum balance between correction of red and preservation of eye 'natural look'. Manual mode allow manual red eye removal of all visible red eyes.
Sep 01, 2016 The Mac Photos app includes a great red-eye removal tool, which makes quick work of getting rid of the glaring red eye effect which can sometimes happen with photos of faces. One of the curiosities of Photos for Mac though is the red eye tool is not always visible as an option, as the app appears to try to detect if red eye is visible in the image and only show the removal tool if needed.

Often, however, these red-eye tools don't work on 'pet eye': the glowing white, green, red, or yellow eye reflections common in photos of animals taken in low-light conditions using a camera flash. Because pet eye is not always red, the automatic red-eye tools sometimes don't work well — if at all.

It used to be that the photos with red eye weren’t really worth fixing as only cheesy cameras had the flash built in and underneath the red eyes was a crappy photo. Well, welcome to the future when you can get a pretty good image from a camera with the flash built in. They do not have a button that works to prevent this yet, so don’t even try it. The best way to fix red eye on photos is to have those intense people look at the photographers shoulder. The cause of red eye is the flash reflecting from the back of the eye and into the lens. So, until this lovely child is able to understand “look at my shoulder” it is good to know that red eye can be fixed, somewhat. I learned the following method from tigert while lurking on the irc late late one night.

Step 1¶

I zoomed in on the image, 4:1 ratio, as this is almost pixel by pixel work. I ended up using the 5 x 5 fuzzy brush that came with the GIMP tarball. As usual, your choice depends on the resolution of your image. A fuzzy brush is highly recommended. On this web sized image, the 3 x 3 fuzzy brush didn’t work fast enough. As always, you can Edit → Undo until you make the right selections.

Step 2¶

A long time ago, someone suggested on the gimp-user list that the Layers, Channels and Paths Dialog always remain open while you use GIMP. Some three years later, I still follow and give this advice. So, if your Layers,Channels and Paths Dialog is not open, open it and leave it open. Select the Channels Tab. Deactivate the Green and Blue Channels by clicking to the right of the thumbnails in the dialog window.

The image should still look like the screenshot of the close up in step 1. If it looks all red, you have just turned the view of the color off. (burning the red eye area will not work if the Layers,Channels and Paths dialog is set up that way, I happen to know).

Step 3¶

Make certain you have a good brush selected (for this image I used the 5 x 5 fuzzy) Then select the Dodge and Burn Tool.

Double click on the button to get the Tool Options dialog. My dialog defaults to dodge and midtones, for this project, choose burn and hightlights (as illustrated). Touch all of the red in the eyes with the burn tool. I think that I used the burn tool on the midtones just a little bit also. GIMP doesn’t have a magic button to fix red eyes with, but it has the tools. It has been my experience that each image is slightly different and I sort of like the control that GIMP gives you…

tigert warned that this method can leave the white spots in the eyes slightly green. I have found this to be true, however so far it hasn’t been enough green to worry about. Given a photo where the green will make a difference, you can use the same tool combination on the green channel, just move the opacity slider to a smaller percentage. Edit → Undo until you get it right.

Final¶

… looking so much better!

The very best fix, of course would be to prevent it from happening. Due to the nature of the problem, my guess is that it will be the same people over and over again with this problem. Some personalities have no problem looking deeply into the camera lens (like this beautiful baby for instance) and maintaining the gaze through the flash. My guess is that as soon as these people know what is going on, they can fix it themselves.

Other personalities have other portrait problems. There is a small handful of people who have no problem looking into the camera lens, but anticipate the flash and blink at the wrong moment. This causes the portrait to look like the object is starting to sneeze. (this is what happens to me) If you know of a method to prevent this, please email me.

Download Red Eye Remover

What a cute baby. This is Maurits and his baby. He is one of a growing list of developers that are changing their babies while working on GIMP. I watched work on WinGIMP occuring between diaper changings and feedings also. chuckle

Going to a lot of night parties? We all know that the flash will give your pictures red eye, but here’s a simple way to use freeware Paint.NET to remove the red eye from any of your pictures.

Paint.NET has a simple tool for doing this called the “Color Replacement Tool,” illustrated here. Shortcut key will give it to you.

You can adjust the colors you want to change in your colors panel. In the illustrated image, the Primary color should be black, and the Secondary color should be red. This means I will be switching the reds in my image with the black in my color palette.

Adjusting “Brush Width” will also make it easier to paint. Since the eyes in this image are quite large, a width of 100 seems appropriate. Adjust the tolerance or the Secondary color if this technique doesn’t remove the red eye from your image.

Red Eye Removal Freeware

With a single brush stroke, the red eye is gone.

Painting over both eyes takes mere seconds. If you don’t already have Paint.NET, it is a free download for Windows.

Does Preview Have A Tool For Red Eye Removal On My Macbook Air

Does Preview Have A Tool For Red Eye Removal On My Macbook Pro

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