Before we go any further, no, I am not being paid by Zazzle to write this. I wanted to share what I have learned by using Zazzle since there is no Instructable on the topic thus far. (At least that I have been able to find)
Specifically, I will show how I turned a doodle from my history notes into a T-shirt design that I am highly contemplating buying for myself.
This is a very simple process, so this instructable will be short. I'm sure I have just scratched the surface of Zazzle, so I may consider expanding this Instructable later.
Visit my Zazzle Store!!:
Step 1: Editing Images from Sketches
All you will need for this is:
* The image you want to scan
* A working scanner connected to your computer
* An image editing program - you will most likely need more than MS Paint. I used GIMP, it's free, open-source, and you can download it here: http://www.gimp.org/
-First, scan in your image, and save it. I find it is easiest to use MS Paint, using the "File>From Scanner or Camera" command.
-Next, save your image, preferably not as a JPG, or it will cause distortion around the lines of your image. PNG is your best bet, but BMP is also good.
-Open your sketched image with GIMP
-It is a good idea at this point to scale up your image using the Scale Tool, as your pictures will always look too small when you upload them to Zazzle later.
-Next, use the Pencil Tool with a reasonably-sized radius to trace over your sketch. These lines that you make will become the final lines of your design, so be careful!
-Next, on your GIMP Toolbar, go to "Colors>Desaturate". This will change the image to black-and-white, which we do want.
-Then on you GIMP Toolbar again, go to "Colors>Posterize" and set the number to "2". This will limit the number of colors in the image to 2 colors total: Black and White, giving you a cleanly-cut image.
**One important note while editing is that it is best to make sure your background is transparent so that it will blend in nicely with a variety of different shirts. Save your final design as a PNG, as they support transparency.
This image-editing process can take some playing with. It takes practice!! It's best to create a few different files as you progress while editing and use multiple layers to be able to delete and edit different parts.
There are a billion GIMP and Photoshop tutorials out there, so my best editing advice other than what's here is to read tutorials, play with it a little, and have fun doing it.