Part V: Trace The Map
51. Launch Adobe® Streamline®, then click File > Open and navigate to the logo map 300.psd Photoshop® file created in the previous step (or whatever name you gave it) to open it. The document window will look something like the one below.
52. Next, click Options > Conversion Setup. There is no change from the defaults this time. In the Conversion section of the dialog make sure only the "Outline" check box is checked. In this example, we only want to trace the map outlines.
53. Next, click File > Convert. The converted art will appear in the document window as shown below.
Note: I'm not so sure I am satisfied with the conversion so I want to look closer ....
54. In this case I will use the Zoom Tool and drag a marquee around an area of the converted art to take a closer look. I am not quite happy with the conversion. I think I can do a little better if I upsample the image to 600 ppi.
55. Open the logo map 300.psd file in Photoshop®.
56. Next we need to upsample the image so Streamline have more pixels to work with. Click Image > Image Size. In the Image Size dialog please note that this image has a resolution of 300 PPI (pixels per inch). Put a check mark in the "Resample Image" checkbox.
57. Enter 600 in the Resolution text box. Please note that the number of pixels in the Width and Height boxes now increase to accommodate the new image size. Click "OK" when done.
58. Now save the file as a new file name. Click File > Save As and give it a new file name. In this example, I called the file "logo map 600.psd".
59. Switch back to Adobe® Streamline®, then click File > Open and navigate to the logo map 600.psd Photoshop® file created in the previous step. The document window will look something like the one below.
60. Next, click File > Convert. The converted art will appear in the document window as shown below.
61. Use the Zoom Tool again and drag a marquee around an area of the converted art to take a closer look. This time I am happy with the conversion. The converted art looks smoother than when done using a 300 ppi image.
Note: Don't get the idea that you will always have to work with a 600 PPI image to get a good conversion. Usually 300 PPI is plenty.
62. Click File > Save Art As, then choose a filename and save the vector art to disk. When the dialog appears for you to choose the EPS preview option, chose color. Click OK to save the EPS file to disk.
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