User-interactive corrective tuning of color profiles

A color profile editing method comprising the steps of:

• measuring, from an image, color data to be adjusted;
• adjusting said measured color data;
• specifying colors in an image for which the color profile produces suboptimal results;
• specifying how such results would be modified;
• deriving a transform which describes the modifications in a form acceptable for storage within a color profile;
• and
• editing said color profile by replacing existing color tag information with said modifications,
• wherein said editing step comprises utilizing a propagation region in order to limit how far and to what extent the modifications are manifested in color space within the color profile tags and fields.

A profile editing system for modifying the color transformation performance of a color profile for use in a digital image processing system having first rendering means for rendering a first image and second rendering means for rendering a second image through use of a profile, said profile editing system comprising:

• means for identifying at least one color associated with suboptimal rendering in the second image;
• means for specifying a preferred color rendering for each identified color;
• and
• means for adjusting ones of fields and tags of the color profile to accommodate said preferred color processing,
• wherein said adjusting means comprises utilizing a propagation region in order to limit how far and to what extent the modification is manifested in color space within the color profile tags and fields.

A system for modifying the color transformation of a color profile comprising:

• means for rendering a first image on a first source rendering device;
• means for processing an image through a color management system that accesses the color profile;
• means for rendering on a second destination rendering device the color processed image;
• means for selecting a third rendering of the second image as being preferably rendered;
• and
• means for adjusting ones of fields and tags of the color profile to facilitate the third rendering through the destination imaging device,
• wherein the adjusting means comprises utilizing a propagation region in order to limit how far and to what extent the modifications are manifested in color space within the color profile tags and fields.