Scitex Inc.

Eastman-kodak Company

Daniel Seidner

Dan Eylon

Eli Shalev

Amir Segev

Eli Israeli

Haim Zvi Melman

Michael Nagler

Tomer Schwartz

Avinoam Livni

Abraham Bachar

Moshe Yanai

Yehoshua Garibi

Yigal Accad

Yossi Ronen

William Schreiber

A method for a chromatic adaptation transformation of images using temperature and tint space comprises the steps of: acquiring a red, green, blue (RGB) image using a camera (); providing neutral RGB values for camera specific, and at least one of a selected highlight and shadow values, to produce a 3D lookup transformation table (); calibrating the RGB image by applying the 3D lookup transformation table to produce a calibrated RGB image (); calculating a Von Kries transform from specific temperature and tint values (); and applying a chromatic adaptation to the calibrated RGB image using the Von Kries transform to produce a modified RGB image chromatically adapted (), while maintaining neutral RGB values for highlight and shadow regions.

Method for chromatic adaptation of images

Apparatus and method for descreening and for performing resolution changes and correction of misregistration on a color half-tone image in order to produce a color continuous tone image. The apparatus includes filter apparatus for removing screen information from the half-tone image including a plurality of different filters each providing interpolation and screen removal functions and a controller for selecting per pixel of the continuous tone image and in accordance with sensed misregistration and as a function of desired resolution changes, one of the filters for operation on a neighborhood of the pixel.

Apparatus and method for descreening

Apparatus and method for descreening and for performing resolution changes on a half-tone image in order to produce a continuous tone image. The apparatus includes filter apparatus for removing screen information from the half-tone image including a plurality of different filters each providing interpolation and screen removal functions and a controller for selecting per pixel of the continuous tone image and as a function of desired resolution changes, one of the filters for operation on a neighborhood of the pixel.

Apparatus & method for descreening

A color separation scanner comprising a movable support arranged for mounting thereon of a two-dimensional input picture to be scanned and color separation sensing apparatus arranged for sensing the two-dimensional input picture for providing electrical signals representing color separations of the two-dimensional picture, the color separation sensing apparatus including a scanning head having a plurality of generally parallel CCD arrays, associated with dichroic filter means and operative for simultaneous scanning of the two-dimensional input picture.

Color separation scanner

A method of color separation scanning an input picture includes the steps pre-scanning the input picture at a lower resolution for providing a lower resolution image on an output device, indicating desired geometric manipulations to be performed on the input picture, and scanning the input picture at a higher resolution in accordance with the desired geometric manipulations to provide higher resolution color separations of the input picture. After the pre-scan, a point of the lower resolution image may be selected and a second pre-scan conducted at higher resolution over a region around the selected point to permit evaluation and modification (if desired) of sharpness prior to final scanning.

Method of color separation scanning

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Herzlia, Israel

Daniel Seidner