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Capter 5. Line Art Scanning > Converting to Bitmap

Converting to Bitmap

Your image is now pure black and white, but the file itself is still in Grayscale mode. You can click the eyeball icon next to the adjustment layer to toggle it off and on and see that it's being applied to a grayscale image. The image must be converted to Bitmap mode to save disk space and to make sure that any final editing doesn't produce unwanted shades of gray. Convert the image from Grayscale to Bitmap by choosing Image > Mode > Bitmap. This brings up the Bitmap dialog box (Figure 5.30), which is where you can change the resolution of your image. If you followed the steps mentioned in the “Avoiding the Jaggies” section at the beginning of this chapter, then the resolution of your image should be just right. If that's the case, then make sure the input and output resolution numbers match, so Photoshop doesn't mess with the Resolution setting, and then click OK.

Figure 5.30. The Bitmap dialog box.



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