Rendering Intents

Several rendering intents are availble when saving a file within a given color space. Each offers specific advantages depending on the output device and end use of the printed piece. This review is intended to clarify the differences between each rendering intent and offer suggestions to customize the optimize the output of your product.


Perceptual
This intent is best for photographic images and as such is the the popular rendering intent. The relationship between colors in the original is scaled proportionally to fit the output device's color gamut. This is the preferred intent when printing on our Noritsu or Epson printer of conventional photographic images or fine art reproduction.
Relative Colorimetric
This intent is best for images, such as logos, where the original needs to exactly match the output. Colors that fall outside of the output device's gamut are converted to colors at the edge of the gamut. Colors that fall inside the output device's gamut are shifted so that they do not exactly match colors that were originally outside the gamut. This may reduce the total number of colors available. For this reason, this intent should only be used when there are relatively few colors in an image. This rendering intent may be appropriate for certain types of fine art reproduction.
Absolute Colorimetric
This intent is best for images that are inside the output device's gamut. Colors that fall outside of the output device's gamut are converted to colors at the edge of the gamut. Colors that fall inside the output device's gamut are not shifted so that may print the same color as colors that were originally outside the gamut. For this reason, this intent should only be used when there are relatively few colors in an image.
Saturation
This intent is best for images where true color matching is not as important as vivid colors. Colors outside of the output device's gamut are converted to colors within the same saturation but with a different lightness. This intent may be used to boost colors within a photographic image when bold color impact is desired and an exact color match is not necessary.
Spot
This intent is best for use with Pantone colors, devices with spot colors and vector images. This intent, which produces the greatest saturation possible, should only be used with non-photographic images.

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