Step 3: Scale your image

Time for the conclusion.

In the Image menu, choose Image Size (Alt+Ctrl+I), set the Resolution to half of what it is now and press OK.
See second attached screenshot.

Voila! Photoshop has added anti aliasing, a sort of precise and systematic blur, to the edges of your drawing and you're left with a neat and crisp image that you can now add colour to, or whatever you want.
<p>Wow what a great tip! I've been doing it the long way for years. Thank you for this great tip!</p>
I like inkscapes trace bitmap now its scalable and vector. saves time... & free
I like it too but in case you already have Illustrator (which isn't free, I know) its Live Trace function is better and has more options. But tracing rarely works exactly as you want with drawings made by hand, they somehow lose their "organic" feeling. That being said, tracing with Inkscape or Illustrator is even easier if you scan the drawing using this method, first :)
<p>Hi Rauz, Just to say thanks for the tutorial and it's still good. I was at a loss how to do this without using live trace. THANK YOU!! :)</p>
Glad to hear it, Mandy!
does anybody know how to do the same thing in GIMP? they don't have the color range option, and when i use the select by color tool, the white edges don't go away.
NEVERMIND! i i tried using the select by color tool a second time and the white particles vanished. :) and i want to thank you soooo much for this technique. i've been using it for almost a year now! but since i've had to move computers i lost photoshop and was forced to acquire GIMP.
<p>i know this comment was a while ago but you can use the threshold or levels/curves color toll to do that</p>
<p>This is exactly what I've been trying to figure out for years. Beautifully simple. Thank you.</p>
You probably don't read these any more, but, on the off chance that you do, thanks for saving an old man from having a stroke. Brilliant solution.
I still read them (I get an e-mail whenever someone replies) and I'm happy to hear people still get some use out of them. Glad you avoided that stroke! :)
Sorry to say it, but I strongly disagree. Never down-sample. For line art (i.e. b/w with no shades of gray), you should have a bitmapped file with the highest possible 'optical' resolution your scanner can handle. (Optical means true dpi, and anything more or less is interpolated. This means the computer will arbitrarily remove or add pixels.) Avoid down or up interpolation at all costs. This destroys the line. Here's the proof: Print a 600 dpi line art bitmapped scan (I prefer 800-1200) and compare to a 300 dpi grayscale antialiased print. It's very logical: For a better image, never remove pixels. If you want to color the line art image, convert to CMYK or RGB and start coloring. I'm a cartoonist, and the only time I down-sample or anti-alias a file is for low-resolution web/screen viewing. Never for print.
Adding/interpolating pixels is exactly the idea with this technique. I've done it hundreds of times and the lines I want to see are still there.<br><br>I'm not a cartoonist but in the graphic business and to me this works exactly how I, and many of the people I've taught the technique, want it to. <br><br>So, basically - let's just agree to disagree. You're free to do with this information as you wish.
1200 dpi bitmapped for line art is industry standard. Check it out on any print test. Consult any prepress expert. Ask your local print shop. It's standard; probably in the Photoshop manual too. Too many web sources to cite, for example: http://www.graphic-design-employment.com/prepress-training.html
This is not about print. It's about cleaning up scanned art, drawn on paper, for mainly digital use. Try it for yourself and you'll see the advantages. This is just a tool among many others, and anyone is free to use it at their own discretion.
&nbsp;I have a question instead of comment. &nbsp;I make small line drawings with mechanical pencil. &nbsp;I would like to make the background paper dissappear from a scanned image so I could montage/layer drawings &nbsp; Would this technique work and be able to retain the color/shades of the lead?
Hi!&nbsp;That seems like a good application although there's no way to scan in color with this method so my suggestion is to do the colouring later, in Photoshop.<br />
wow this will be a lot of help thanx! I think you can use a process were you put paper under paper, then put i think tracing paper in-between then you trace over the drawing in pen and then ta-da the under sheet that was white now is inked! then you copy it and print it out to experiment with.
this is gonna help me prepare sketches for my embroidery machine. thanks.
Surprisingly simple tutorial, simple technique... but pretty powerful and worthwhile. I really like these instrubles that don't have too much, but give a technique I can remember and use that I would not have likely thought up myself.
I haven't tried this technique yet, but the idea to double the resolution and then scale down is great. So simple and so effective. Really, much better than using grayscale and then messing up with color (black) levels, curves, gamma... Congratulations! Of course, this only applies to black/white drawings, with no gray information.
That is true I used gimp a free and open source photoshop kinda thing to make the contrast better and make it look like a line drawing by putting it through a high pass filter techneque shown in gimp tutorials. Printed it. Then traced it. Then re-traced it useing the free and open source inkscape so it would be scalable and vector based.

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