I am going to show you how easy it is to change the inside of an apple to orange.
This is the image of inspiration:
Find an image of a cut apple and of a slice of orange to work with. You’ll want images that could ideally be put together – so make sure they are crisp images and have some sort of similarity in angle.
Now that we have our images to work with, let’s get started!
Remove most of the peel from the orange slice.
Use the Pen Tool to trace the meat of the apple wedge.
Hold CTRL down when you click on the image of your Path in the Layers Window to select around it. Create a new layer and fill this tracing with a color (I chose white).
Frame out the other visible area of cut apple, and repeat the previous step to get another solid shape on its own layer.
Now copy the peeled orange slice, select the layer with your first solid shape of color you created for the apple wedge, and Paste Into: CTRL+SHIFT+V or Edit>Paste Into
Once pasted into, it will create a new layer, with two images. One will be the shape you Pasted the orange into, and the other will be the orange. You can move and adjust/scale/alter the orange independent of the shape you created, while still maintaining that shape. You now want to Transform the orange CTRL+T and you can either Skew it or Warp it. I skewed because of the version of Photoshop I am using. To skew you hold down the CTRL button while you grab the anchor points/corners and sides of the box. You want to move the orange around and play with it until you get the orange at a good angle.
Do the same with the other piece.
Chop any extra overlap off of the second shape. ***To avoid having to chop it off, when you trace the second slice of orange you can just follow the whole shape, instead of making a straight line like I did.
Go back to the picture of the orange you peeled. Trace out with the Lasso Tool a piece of the white rind of the orange (the part next to the peel).
Paste it into a layer over top of the first orange slice.
Continue to chop and paste pieces of rind and skew them to fit along the edge of the slice.
Adjust the Levels CTRL+L a little by dragging the right-hand slider to the left a little, to brighten the white just a tad. Don’t do it too much or it won’t look right.
Merge all of the rind together, still keeping it on a separate layer from the fruit itself.
Using the Lasso tool with a feather of about 3px, trace around the outermost edge of the rind, where it is orange from the orange peel. Adjust the Hue/Saturation CTRL+U to match the green of the apple skin.
While maintaining the selection you made, click on the layer of the orange slice and do the same for it. You may have some orange showing through since the edge of our rind is not perfect, and you want it all to match the apple skin.
Repeat all of these steps for the other slice.
Using the Lasso tool yet again, change the feather to about 15-20px (depending on the actual size of your image, you may want to make this a larger number, the larger your dimensions are).
Draw a circular-ish shape over the bottom left part of the second (back) orange slice. We are going to make it darker/less vivid to give it more depth.
There are not any dramatic shadows in the picture of the apple, so we don’t want there to be on the orange either. We’ll adjust the Hue/Saturation again CTRL+U.
Drag the Saturation slider down a little, and the Lightness slider down as well. We’re just taking a little of the color of the image so it doesn’t turn into a weird burnt orange color, and darkening it a little for shadow.
Do the same for the other orange slice.
Well, you’ve done it now! You made a hybrid apple/orange! Apporange? Orapple? Whatever you want to call it, you know how to make one now!