In this tutorial we are going to learn the best way to cut out difficult images from their background in Photoshop. Im not talking about solid shapes and people against green screens. Im talking about hair and irregular edges against less-than perfect backgrounds. You know, the kind of thing that you have to deal with in the real world, not just for tutorials. As you know, here at photoshopCAFE we are all about keeping it real and tackling real-world stuff rather than eye-candy that you cant actually use.
So lets have a stab at extracting a woman wearing a feather head dress. To make it more fun, we will use a colored background that is similar in color to the feathers one one side, and completely different on the other side. Sound challenging enough? Lets do it!
We also have another method of extracting in this free video tutorial
Step 1
Make a duplicate layer of the image. This way the original is preserved on the background and we are working on a duplicated layer. Hide the background by clicking off its visibility icon. Choose Select>Color Range from the Menu. When the Color Range Dialog box open, choose the Left Eye Dropper tool and click on the background color in the image window (pink). You will see the selected color turn white in the dialog box. Move the Fuzziness slider until the image is mostly black and the background is a clean as you can get it. Tip: To add a color to the selection click on the eyedropper tool with the plus sign and click in the image. Click ok
Step 2
With the selection active, switch to the Channels palette. Click the save selection as channel button, its the second one to the left on the bottom of the channels palette. A new alpha channel will now be visible. Press Ctrl/Cmd+D to Deselect and click on Alpha 1 in the channels palette. The main window will now turn black and white. The advantage of using a channel is the ability to fine tune the selection without effecting the original image. Black represents the areas that we want to keep and white, the areas to be discarded.
Step 3
Notice that there are areas of gray, these would be semi-transparent and need to become solid black and white (except for areas that should be semi transparent such as soft edges). There are tiny dots also visible, there will make for a very messy selection. Here is a quick solution that I have come up with: Click Image>Adjustments>Levels..
In the levels Dialog box, click the black point slider on the left and drag it to the right until the gray areas have become a solid black, Slide the White point slider to the left until the whites are nice and clean and the grainy effect has gone. Click ok to apply.
Step 4
Step 5
Step 6
Hold Cmd(Ctrl PC) and click on the Alpha 1 thumbnail. You will now see an active selection. Click on RGB to see the color image. Open the layers palette.
Select the working layer and add a layer mask. The masked area of the backround will now be removed to reveal a nice clean masking effect.
If it looks the opposite, click on the layer mask and press Ctrl/Cmd+I to invert the mask. You can touch up the mask by painting with black or white to add or remove portions of the image.
At this point In am only worried about removing the pink background on the left.
Step 7
If there are areas that still need to be removes such as on the right side of this image, repeat the proceeding steps. Because each image is unique, some will need several passes and some can be done in a single pass. As you can see, this technique is very effective and the image can be dropped onto any background. Look at the top left of the image to see how precise the cut out is on the detailed feathers. Try that with the pen tool!
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