To convert color images to black and white we recommend using the Black and White function – available in newer versions of Photoshop via Image > Adjustments > Black & White. You should always use dither if your image contains large areas of subtle gradations. Select dither if you want to add a small amount of digital noise to break up gradients that are banding.Select Black Point Compensation to preserve shadow detail.Select Perceptual as the Intent and Adobe ACE as the Engine to achieve the best possible match between Adobe RGB and sRGB without losing subtle gradations and transitions. Select Edit > Convert to Profile (you may also need to select “Show All Menu Items” if the ”Convert to Profile” item is not available.).If the image is sRGB, you do NOT need to do a conversion. Check the color profile of an image in PhotoshopĬlick on the menu on the bottom left of your image window and select Document Profile. Make sure to always work on a copy of your image to preserve your original image. If you use Adobe RGB, ProPhoto RGB, or some other RGB color space, you can use Adobe Photoshop to convert your images to sRGB before importing them into BookSmart. However, this automatic conversion from RGB to sRGB may introduce an undesired color cast to black and white images. A ll other RGB images are converted to sRGB when placing them into BookSmart. If your images are already sRGB, you're all set. Convert your images to the sRGB color space using Adobe® Photoshop®Īll images you place into BookSmart should be sRGB. To minimize any potential color shifts you should make sure there's no underlying color cast in your images before you import them into BookSmart. However, a color shift in black and white images may be more noticeable. Most people would never notice a slight shift in cyan within a full-color image. There's an acceptable amount of color shift within the world of digital presses, as defined by the press manufacturer Hewlett-Packard. The biggest challenge in printing black and white images using a four-color press is the potential for a color cast.
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