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Create a Transparent Image using Adobe Photoshop®
If you want to create a nice product design we recommend you to use PNG images.
We'll learn how to create a transparent background with Alpha
Channel from a standard image.
Photoshop®
contains powerful Alpha Channel manipulation features. We'll see here one of the
simplest way to proceed: Extrude a part of the image and remove the existing
background. Advanced techniques also exist to work with alpha channel. See
Photoshop help to read more.
Create
a Transparent Image using Adobe PhotoShop®
1. Open
your image in
Photoshop® (we use version 7.0 in this tutorial). Select
File/Open... Choose your file and click Open. The file will open in a
separate document window>
2. If
the file is not in RGB format (16.8 M colors), convert it: Choose
Image/Mode/RGB Color.
3. Now
select the background area of the image (the area you wish to remove). If the
image background has a solid color (white in our example), select the Magic
Wand Tool (W) or click
in
the toolbox. Be sure to specify Tolerance=10, Anti-aliased and
Contiguous in the selection options (dialog box on top, under the menu). You
may need to adjust the tolerance value (it depends on your image).
When done, click in the background area of the image ( ):

4. A
selection dashed-line appears around the logo and around the square border of
the image. It means that the background is selected (not the logo). If the
background is not made of a solid color, you can select it by using the
Polygonal Lasso Tool (L) or click
.
It's a bit more difficult but that's the only way to proceed.
5. Now,
we'll select the logo only. To do so, choose Select/Inverse (Shft+Ctrl+I).
It's almost unchanged but the dashed-line around the square border of the image
has disappeared.
6.
Choose Edit/Copy (Ctrl+C), then Edit/Paste (Ctrl+V) to create a
new layer with the "extruded" logo in it. The "layers" list has been updated
(see below). The new layer, which is selected, appears at the top of the list ( ).
The original image is present in the background ( ).
Now, we'll hide the original image by clicking on the "eye" button of the
background layer ( ).
If you want, you can also delete it by drag-and-drop it on the trash (at the
right-bottom corner of the list).

5. The
image document now looks like shown below. The background area (which was white)
has disappeared. Now you see a gray-checkboard-like texture around the logo ( )
indicating that this area is in fact transparent.

6. We
recommend to save the image to another file to keep the original one intact.
Select "File/Save As...". In Format box, select "PNG" (our
favorite format).Click Save. Select Interlace: "None", click OK.
7. You're done, the transparent version of your
image is created.
Related Topics
Create a Transparent Image using Paint Shop Pro

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