Shadow and highlight are probably the most important two concepts in the correct use of Curvemeister.
In addition to the rather technical discussion here, be sure to check out the real how and why of shadow and highlight as discussed in the various examples that show the practical aspects of setting shadow and neutral.
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You may set a shadow in the usual way, by right clicking on the image and selecting the Set Shadow command, or drag a shadow from the pin palette to set a shadow. The RGB shadow pin is defined as pure black. The CMYK shadow (shown while working in Lab mode) is set to use a CMYK black value from Dan Margulis's Professional Photoshop book. The CMYK black point is dependent on press conditions, and you will probably want to create your own pins for this purpose to suit individual press conditions. The value of the black point is related to, but not identical to your total ink limit and GCR setting. |
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| The white point is set exactly the same as the black point, and has its own menu item and pins. | |
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CMYK and Corner Fill: For press work the CMYK black and white points will define CMY values that are well inside the 0 and 100% values. The corner fill option will determine whether colors in the image whose values are below or above your black or white point are filled out with constant values, or interpolated to zero or 100% values. If you wish to have more control over color values that fall outside of the black and white points, define your pin as a color pin, instead of a black or white point, and set the remainder of your curve manually. |
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