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treyjeff

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Smooth images and reduce color?

I have an image at http://www.hyrum.net/redcarwip.jpg that I am trying to clean up.  I want the background all white and the text and airplane to be red.  When I reduce the colors to 2, it makes the edges very pointy and if anyone can help me I'd appreciate it.
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890

You are using jpg it's gona happen. Try to resave the image as a gif.  Use a clean image not this image.

Or else you really need to increase the resolution and edit the image and then convert it into index color and save as gif.  (this might increase the image file size so make sure the colors that you are using are pure white and red-just make sure that the color stay close to only two or three.)
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Well I scanned straight to gif and it had all this messy garbage in the background.  I can scan to other formats but is it not possible to fix this one up?
Do not scan to gif. scan to tif or jpg.  If you scan to gif the result is that you have limited colors. scan in jpg or tif or bmp or anyother format that doesn't have the indexed color format.
Oh, also you can edit this image just increase the image resolution (and keep the same size) and edit it using graphic program like photoshop.

Use the select tools and select the areas and paint over it.

Or pick you luck and go to brightness and darkness and adjust the color.

You can't adjust it's quality by resaving it in a new format. that the bottom line.
Your best bet would be to just lighten the background color by using replace color (Menu Bar:Image:Adjust:Replace Color...)  In the dialog window that opens, first click on the radio button marked "Image" and you should see a small version of your image in the window.  When you move the mouse over this image it turns into an eyedropper tool and you can select which color you want to change.

For your image click on the grey/white background and the color you have chosen will appear in a small box marked "Sample" in the lower right corner of the window.  You now can alter the color by using the sliders at the bottom of the window (Hue, Saturation and Lightness).

The slider at the top of the window "Fuzziness" allows you to increase or decrease the range of colors similar to the one you have chosen to be effected in the change.  Move the slider to the right and it will include a greater range or move it to the left and you will get a more precise selection.

For your image I selected a greyish-white area and then turned the fuzziness up to 200 and then moved the lightness all the way up.  You will notice the background becomes brighter and leaves the red graphic alone.  You might want to reduce the fuzziness down if it picks up some of the edges of the logo.


As far as reducing the colors down to 2 and getting jaggy edges... thats whats going to happen when you have just one color next to another.  To get a softer edge you need a gradual change of a few colors.  The more colors you have in the transition the smoother the change will appear.  You can eliminate some of the colors inbetween when you make your gif but if you take all of them away except the white and the red, you are going to have a rough edge.  The file size will be larger but the edges will look nicer.  You have to decide which is more important... file size or your image.  Somewhere between 256 colors and 2 colors is what you are looking for.

forkbeard
Have you had any luck w/ you image?

forkbeard
Well, what I've done is find printed material for the logo.  I scanned it in and removed what wasn't needed.  I then added lines that were needed for the logo and I'm at the part now where I need to add some text but have NO idea how I'm going to do that as it isn't some regular font.
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forkbeard

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Forkbeard, I did try what you suggest even though I had figured out a way to solve this and it does answer the original question so I'm going to award the points :)