Color Correcting Patents (Class 430/359)
  • Patent number: 8018468
    Abstract: Disclosed herein is an image signal processor for carrying out conversion into an xvYCC signal by using a photograph film as a material, the image signal processor including: acquisition means for acquiring print film concentration data based on said photograph film; generation means for generating spectral data on an image on a screen previously presumed based on spectral concentration characteristics of colors of a positive film having an image projected on said screen, a spectral distribution of a projection light source, and the print film concentration data; arithmetical operation means for arithmetically operating an XYZ tri-stimulus value corresponding to the spectral data; and conversion means for converting the XYZ tri-stimulus value into the xvYCC signal.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: September 13, 2011
    Assignee: Sony Corporation
    Inventors: Tatsuhiko Matsumoto, Yutaka Imai, Takehiro Nakatsue
  • Patent number: 7738148
    Abstract: This invention provides methods for predicting calorimetric measurements of subtractive colors, in particular, when there is a measurable colorimetric change in one or more individual colorant relative to a set of baseline measurements. The invention is useful for, among other things, imaging applications or soft proofing environments to improve color modeling without requiring significant empirical measurements for adjustments to color models.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: June 15, 2010
    Assignee: Eastman Kodak Company
    Inventor: Christopher J. Edge
  • Patent number: 7270932
    Abstract: Imaging compositions and methods of using the compositions are disclosed. The imaging compositions are sensitive to low levels of energy such that upon application of the low levels of energy the compositions change color or shade. The compositions may be used in methods of marking.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: September 18, 2007
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Robert K. Barr, James T. Fahey, Corey O'Connor, James G. Shelnut, John J. Piskorski
  • Patent number: 7223519
    Abstract: Imaging compositions and methods of using the compositions are disclosed. The imaging compositions are sensitive to low levels of energy such that upon application of the low levels of energy the compositions change color or shade. The compositions may be applied to a work piece to mark it and removed from the work piece by peeling.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: May 29, 2007
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Robert K. Barr, Corey O'Connor
  • Patent number: 7149004
    Abstract: A method of processing a scanned negative image produced by scanning a negative film includes creating a baseline positive image from the scanned negative image, analyzing at least one image characteristic of the baseline positive image, determining a film type of the negative film based on the at least one image characteristic, and producing a positive image from the scanned negative image based on the film type, including applying film-specific color inversion to the scanned negative image.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: December 12, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Charles Chi Jia, Laura Xiaoluo Zhou
  • Patent number: 7144676
    Abstract: Imaging compositions and methods of using the compositions are disclosed. The imaging compositions are sensitive to low levels of energy such that upon application of the low levels of energy the compositions change color or shade. The compositions may be applied to a work piece to mark it and removed from the work piece by peeling.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: December 5, 2006
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Robert K. Barr, Corey O'Connor
  • Patent number: 7063925
    Abstract: The invention relates to a photographic article comprising a base material carrying at least one layer comprising a photographic image formed by combination of dyes formed from couplers wherein areas of said photo image are colored without dyes formed by couplers.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: June 20, 2006
    Assignee: Eastman Kodak Company
    Inventors: William T. Rochford, Robert P. Bourdelais, Mridula Nair
  • Patent number: 6985270
    Abstract: A method of calibrating digital images having pixels with pixel values includes the steps of: exposing a photographic element to form a latent image of a reference calibration target including a plurality of reference calibration patches; exposing the photographic element to form a latent image of a scene; processing the photographic element to form developed images from the latent images on the photographic element; scanning the developed images to produce digital images; measuring the pixel values of the digital image of the reference calibration target to produce a measured value for each of the reference calibration patches; obtaining an aim value and adjustment data corresponding to each reference calibration patch; generating image calibration corrections using the measured values, the aim values, and the adjustment data; and applying the image calibration corrections to the digital image of the scene.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: January 10, 2006
    Assignee: Eastman Kodak Company
    Inventors: John T. Keech, John P. Spence, Mark E. Shafer, Donald O. Bigelow
  • Patent number: 6969581
    Abstract: A method and apparatus for restoring to chemical stability motion picture film having an acetate base which is suffering, or which may begin to suffer, from the deterioration generally referred to as “vinegar syndrome.” The method allows films to be treated and stabilized without applying a liquid to their surfaces and without immersing them in any liquid. Instead, vapors emitted from a specially prepared, heated chemical solution permeate the film base and begin chemical reactions which ultimately restore the film. The process can be used on film that has begun to deteriorate, or it can be used, as a preventative measure, on apparently healthy film.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: November 29, 2005
    Inventor: George E. Wagner
  • Patent number: 6917758
    Abstract: A method for obtaining an adjusted digital image which is compensated for a watermark exposure is described comprising: determining a first sensitometric response of a photographic media without a watermark exposure; determining a second sensitometric response of the photographic media with a watermark exposure; generating a look-up table (LUT) from the first and second sensitometric responses; and modifying a digital representation of an image which is to be printed onto the photographic media in accordance with the look-up table to produce an adjusted digital image. The adjusted digital image may be printed directly onto a final print photographic film that receives a watermark exposure, or may be printed onto a printing negative photographic film to produce a printing negative with an adjusted image, which adjusted image is then printed onto a final print photographic film that receives a watermark exposure.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: July 12, 2005
    Assignee: Eastman Kodak Company
    Inventors: Robert J. Zolla, Paul W. Jones
  • Patent number: 6810209
    Abstract: The invention relates to a method to establish a sensitometry curve for a photographic medium, including the following steps: the formation on the medium of at least one sensitometry control by exposing many ranges of the medium with various exposure energies; the capture of the optical density values of the sensitometry control in each range; the formation from the captured values of sensitometry curve sections; and the energy offset of the curve section to obtain a partial overlap of sections corresponding to neighboring exposure energies.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: October 26, 2004
    Assignee: Eastman Kodak Company
    Inventor: Thierry Prigent
  • Patent number: 6766263
    Abstract: A system and method for calibration of digital image capture devices is presented that allows the further development of e-commerce by ensuring that the digital image accurately represents the colors of the captured image. This simplified method provides a calibration of the relationship between a digital image capture device output and the human visual perception of the colors input into the device using easily available and affordable test targets, measurement devices, and software with a minimum of labor and expertise. This analysis may be performed using the data analysis tools of a conventional electronic spreadsheet having matrix multiplication and regression capability. Specifically, the method normalizes the test target data to both black and white, and converts the normalized data into the color space of the capture device through white point adaptation.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: July 20, 2004
    Assignee: Microsoft Corporation
    Inventor: Michael D. Stokes
  • Patent number: 6593042
    Abstract: The invention relates to a photographic article comprising abase material carrying at least one layer comprising a photographic image formed by combination of dyes formed from couplers wherein areas of said photo image are colored without dyes formed by couplers.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: July 15, 2003
    Assignee: Eastman Kodak Company
    Inventors: William T. Rochford, Robert P. Bourdelais, Mridula Nair
  • Patent number: 6569612
    Abstract: A color photographic element is disclosed comprising at least three light-sensitive units which have their individual sensitivities in different wavelength regions, comprising at least one imaging layer comprising a light-sensitive silver-halide emulsion, binder, and a yellow coupler represented by the following structure: Wherein COUP is a photographic coupler residue capable of coupling with oxidized color developer to form a first yellow dye L is a linking group selected from the group consisting of —OC(═O)—, —OC(═S)—, —SC(═O)—, and —SC(═S)—, and —DYE is a releasable second yellow dye or yellow dye precursor, wherein COUP is an acetanilide compound that contains one or more electron-withdrawing groups such that the pKa at the coupling site is less than 8.7. Such yellow couplers improve activity and enhance dye densities.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: May 27, 2003
    Assignee: Eastman Kodak Company
    Inventors: Lelia Cosimbescu, Jared B. Mooberry, David T. Southby, Louis E. Friedrich
  • Patent number: 6537737
    Abstract: A method and apparatus for restoring and enhancing both color and black and white motion picture films. In accordance with the method of the invention, vapors emitted from a heated chemical solution, but is not, at any time, immersed into the chemical solution. The identical process is used in enhancing both color and black and white films. Enhancement of black and white films in accordance with one form of the invention includes an expansion of the contract range of the film, turning murky grays into deep blacks, bringing out textures in set and costume design, and revealing artistic lighting effects that were either muted or lost. Optical soundtracks on black and white films are also improved by the method of the invention.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: March 25, 2003
    Inventor: George E Wagner
  • Patent number: 6515734
    Abstract: An exposure apparatus is arranged to project one unit of a circuit pattern onto the surface of a resist on a substrate to be manufactured and to expose it over the surface of this resist. The exposure apparatus includes a processing unit that enables forming a high-resolution circuit pattern image on the substrate by the use of an image display which is able to ensure a wide display region without deteriorating the resolution, and that when dividing the one unit of circuit pattern into a plurality of regions in order to ensure an inexpensive, reliable exposure operation, divides it so that adjacent ones of the divided regions may partly overlap each other. An exposure device includes a plurality of optical systems each of that projects one of a plurality of the divided regions onto the surface of the resist on the substrate.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: February 4, 2003
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Hidetoshi Yamada, Susumu Kikuchi, Toshihiro Kitahara, Hiroya Fukuyama, Tatsuo Nagasaki
  • Patent number: 6513212
    Abstract: A color photographic element comprising at least three light-sensitive units which have their individual sensitivities in different wavelength regions, at least one of units comprising a light-sensitive silver-halide emulsion, binder, and a coupler represented by formula I: COUP—(T)m—L—DYE′  (I) wherein COUP is a coupler parent group capable of reacting with an oxidized developer to form a first cyan dye and is bonded at a coupling position to a releasable group that forms a second dye of the same hue, as described in the specification.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: February 4, 2003
    Assignee: Eastman Kodak Company
    Inventors: Jared B. Mooberry, Wojciech K. Slusarek, David T. Southby, David H. Levy, Xiqiang Yang
  • Patent number: 6503670
    Abstract: A process for restoring the color of faded color negative film, particular for faded color motion pictures. The original faded negative film is used to produce a green enhancement mask and a blue enhancement mask (or a combination green/blue enhancement mask). Standard red, green, and blue separations are also made from the original faded negative. By combining the green and blue enhancement masks with the standard green and blue separations, respectively, (or the combination green/blue enhancement mask with the green separations and blue separations), enhanced green and blue separations are created. The enhanced green separation, the enhanced blue separation, and the red separation are recombined to form the restored color negative or interpositive. Alternately, from the original negative, an enhanced blue mask can be created, and intermediate film stock printed with yellow light passed through the original negative to produce unprocessed intermediate stock can be created.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: January 7, 2003
    Assignee: VCE.com, Inc
    Inventor: Peter Kuran
  • Publication number: 20030003409
    Abstract: A process for restoring the color of faded color negative film, particular for faded color motion pictures. The original faded negative film is used to produce a green enhancement mask and a blue enhancement mask (or a combination green/blue enhancement mask). Standard red, green, and blue separations are also made from the original faded negative. By combining the green and blue enhancement masks with the standard green and blue separations, respectively, (or the combination green/blue enhancement mask with the green separations and blue separations), enhanced green and blue separations are created. The enhanced green separation, the enhanced blue separation, and the red separation are recombined to form the restored color negative or interpositive. Alternately, from the original negative, an enhanced blue mask can be created, and intermediate film stock printed with yellow light passed through the original negative to produce unprocessed intermediate stock can be created.
    Type: Application
    Filed: June 27, 2001
    Publication date: January 2, 2003
    Inventor: Peter Kuran
  • Publication number: 20020172900
    Abstract: A color photographic silver halide material having a support, which material comprises at last one blue-sensitive, yellow-coupling silver halide emulsion layer and at least one geen-sensitive, magenta-coupling silver halide emulsion layer and at least one red-sensitive, cyan-coupling silver halide emulsion layer, and which contains at least one masking coupler which has two chromophores which absorb in the wavelength range from 420 to 750 nm and are eliminable or decolorisable by coupling with the developer oxidation product, is distinguished by improved sensitivity associated with undiminished color purity.
    Type: Application
    Filed: January 10, 2002
    Publication date: November 21, 2002
    Inventors: Jan Haller, Ralf Wirowski
  • Publication number: 20020160321
    Abstract: A method for deriving a color negative film developer composition and processing conditions for developing a photographic film image which is optimized for subsequent digital scanning and digital image file manipulation, which allows for optimum rapid development processing of the film is disclosed.
    Type: Application
    Filed: March 6, 2002
    Publication date: October 31, 2002
    Inventors: Robert A. Arcus, Jeffrey L. Hall, John A. Weldy
  • Patent number: 6465164
    Abstract: This invention relates to a method of forming an image comprising providing an imaging element comprising a transparent polymer sheet, and at least one photo sensitive dye forming coupler containing layer is on each side of said sheet, wherein there are at least four separate photo sensitive layers and the photo sensitive layers comprise at least four dye forming couplers that form at least four spectrally distinct colors, image wise exposing said imaging element by actinic radiation, developing an image, and applying a white reflective sheet to one side of the developed imaging element.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: October 15, 2002
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Alphonse D. Camp, James L. Edwards, Robert P. Bourdelais
  • Patent number: 6458520
    Abstract: A color image formation method is disclosed, comprising developing a photographed silver halide color photographic light-sensitive material, photoelectrically reading the image information obtained to convert it into a digital image information, and taking out the digital image information to a printer, wherein the development processing is performed under the condition satisfying at least one of the following conditions (1) to (4): (1) the color developing agent concentration in the color developer is from 0.02 to 0.2 mol/l; (2) the bromide ion concentration in the color developer is from 0.015 to 0.1 mol/l; (3) the color development time is from 45 seconds to 2 minutes; and (4) the color development temperature is from 40 to 55° C.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: October 1, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Hideaki Nomura
  • Patent number: 6436620
    Abstract: This invention relates to an imaging element comprising a translucent sheet, and at least three photosensitive dye forming coupler containing layers on the face side of said sheet, wherein said at least three photosensitive forming coupler containing layers comprise a cyan dye forming layer comprising a cyan dye forming coupler in combination with a red sensitized photosensitive emulsion, a yellow dye forming layer comprising a yellow dye forming coupler in combination with a blue light sensitive photosensitive emulsion, a magenta dye forming layer comprising a magenta dye forming coupler and a green light sensitive photosensitive emulsion, and on the back side of said translucent polymer sheet at least one dye forming coupler comprising magenta dye forming coupler, cyan dye forming coupler, or yellow dye forming coupler in combination with a light sensitive silver halide emulsion sensitive to a different wavelength of visible light than it was in combination with on the face side.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: August 20, 2002
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Robert P. Bourdelais, Alphonse D. Camp
  • Patent number: 6406837
    Abstract: This invention relates to an imaging element comprising a transparent polymer sheet, and at least one photosensitive dye forming coupler containing layer is on each side of said sheet, wherein there are at least four separate photosensitive layers and the photosensitive layers comprise at least four dye forming couplers that form at least four spectrally distinct colors.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: June 18, 2002
    Assignee: Eastman Kodak Company
    Inventors: James L. Edwards, Peter T. Aylward, Alphonse D. Camp, Robert P. Bourdelais
  • Patent number: 6368759
    Abstract: The invention relates to an imaging element comprising a transparent polymer sheet, and at least one photosensitive dye forming coupler containing layer is on each side of said transparent sheet, wherein there are at least four separate photosensitive layers and the photosensitive layers comprise at least four dye forming couplers that form at least four spectrally distinct colors, and wherein said imaging element is adhered to a transmissive polymer sheet that has a spectral transmissiveness of greater than 15 and less than 90%.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: April 9, 2002
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Peter T. Aylward, Alphonse D. Camp, James L. Edwards
  • Publication number: 20020004183
    Abstract: A color image formation method is disclosed, comprising developing a photographed silver halide color photographic light-sensitive material, photoelectrically reading the image information obtained to convert it into a digital image information, and taking out the digital image information to a printer, wherein the development processing is performed under the condition satisfying at least one of the following conditions (1) to (4):
    Type: Application
    Filed: July 28, 1998
    Publication date: January 10, 2002
    Inventors: TAKATOSHI ISHIKAWA, HIDEAKI NOMURA
  • Patent number: 6337176
    Abstract: A silver halide color photographic lightsensitive material comprising a support and, superimposed thereon, at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer, wherein each of the at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer and at least one blue-sensitive emulsion layer contains a silver halide emulsion whose silver chloride content is in the range of 50 to 100 mol %, and at least one layer of the lightsensitive material contains a compound represented by formula: Cp—(L)n—B   (I).
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: January 8, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keisuke Matsumoto, Takayuki Ito
  • Patent number: 6309813
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer containing an azopyrazolone masking coupler and a monosubstituted quinone of formula I: wherein R is selected from the group consisting of alkyl, aryl, alkoxy, aryloxy, alkylthio, arylthio, sulfinyl, sulfonyl,sulfamoyl, halogen, cyano, thiol, hydroxy, nitro, acyloxy, sulfonyloxy, heterocyclic, carboxylic acid, carboxylate, carbamoyl, amino, carbonamido and sulfonamido groups.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: October 30, 2001
    Assignee: Eastman Kodak Company
    Inventors: Janet N. Younathan, Daniel L. Kapp, Stephen P. Singer, David R. Foster
  • Patent number: 6291144
    Abstract: This invention relates to an imaging element comprising a translucent polymer sheet, and at least three photosensitive dye forming coupler containing layers on the face side of said sheet, wherein said at least three photosensitive forming coupler containing layers comprise a cyan dye forming layer comprising a cyan dye forming coupler in combination with a red sensitized photosensitive emulsion, a yellow dye forming layer comprising a yellow dye forming coupler in combination with a blue light sensitive photosensitive emulsion, a magenta dye forming layer comprising a magenta dye forming coupler and a green light sensitive photosensitive emulsion, and on the backside of said translucent polymer sheet at least one dye forming coupler that forms at least one dye that is spectrally distinct from the dyes on the face side of said translucent sheet.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: September 18, 2001
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Robert P. Bourdelais, James L. Edwards, Alphonse D. Camp
  • Patent number: 6284445
    Abstract: Reference calibration patches produced by a sequence of exposures on a photographic element, the photographic element exhibiting linear defects in a predominant direction, are arranged in a two dimensional array and exposures are assigned to the reference calibration patches in the array such that nearest neighbors in the predominant direction are not nearest neighbors in the exposure sequence, whereby the effects of a linear defect are reduced; and the maximum number of steps in the exposure sequence between a reference calibration patch and that of its nearest neighbors in any direction is less than a predetermined number, whereby the effects of flare are reduced.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: September 4, 2001
    Assignee: Eastman Kodak Company
    Inventors: John T. Keech, Donald O. Bigelow, Nathan D. Cahill, Thomas F. Powers, John P. Spence
  • Patent number: 6274299
    Abstract: A method is disclosed for electronically processing an image scanned from a scene exposed onto a color negative photographic element. The element is especially capable of producing images that, when scanned, converted to electronic form, corrected and then converted to a viewable form, exhibit excellent color, reduced granularity and improved sharpness. The photographic elements contain blue, green and red recording layer units capable of forming spectrally differentiated dye images. The layer units are substantially free of colored masking coupler, and each exhibit a dye image gamma of less than 1.5. The element exhibits an exposure latitude of at least 2.7 log E. The gamma ratios of the blue, green and red recording layer units are between 0.80 and 1.2. A method for producing a viewable image is additionally disclosed.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: August 14, 2001
    Assignee: Eastman Kodak Company
    Inventors: John D. Buhr, Frank R. Brockler, Allan F. Sowinski, Richard P. Szajewski, Lois A. Buitano
  • Patent number: 6221569
    Abstract: There are provided a method of forming color images, wherein the image information recorded in a color negative film, which is constituted so as to provide an optical density of not higher than 0.50 in the non-image area in each of densitometric measurements using red light, green light and blue light respectively after exposure and development processing operation, is read photoelectrically, the read image information is converted into electric digital image information, the converted image information is subjected to picture processing and then the processed image information is transmitted to a printer, thereby reproducing color positive images; and a color negative film having the density specified above in the non-image area.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: April 24, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Takatoshi Ishikawa
  • Patent number: 6200738
    Abstract: An image forming method is disclosed, wherein a photographic element comprising a support having on at least one side thereof at least a photographic component layer containing light sensitive silver halide is subjected to exposure and photographic processing to form a dye image, in which the photographic processing is allowed to be completed, while the residual silver content in the photographic element is 5% or more; image information in the visible light wavelength region, in which the dye image has absorption, and image information in the invisible light wavelength region are read, and the obtained image information is further subjected to image processing to reduce noise due to the residual silver.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: March 13, 2001
    Assignee: Konica Corporation
    Inventors: Hiroaki Takano, Hideaki Haraga, Kouji Tashiro
  • Patent number: 6194107
    Abstract: A method has been found for producing a set of exposed photographic color negatives for use in calibrating a developing and a printing machine system for making photographic color prints, wherein all the exposures are carried out to the same multicolored object which also contains a grey reference part while using the same type of photosensitive film material, and the exposures comprise at least 8 normal (N) exposures, at least 4 over (O) exposures and at least 4 under (U) exposures, at a ratio of the number of N/O/U exposures of 5/(2-3)/(2-3), and include, in the order given, each of the four sequences NN/NN; NN/OO; NN/UU; and UU/OO, or NN/NN, NN/UU; NN/OO and OO/UU. The set of exposed negatives thus produced is used in a method for calibrating a developing and a printing machine system for making photographic color prints.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: February 27, 2001
    Assignee: Fuji Photo Film B.V.
    Inventors: H. G. M. Hendrix, P. J. A. M. Sparidaens
  • Patent number: 6190844
    Abstract: High performance radiographic films exhibit visually adaptive contrast when imaged in radiographic imaging assemblies comprising an intensifying screen on both sides. These films have at least two silver halide emulsions (preferably tabular grains) on each side of a film support, and the emulsion closest to the film support on each side includes chemistry to control crossover. In addition, the films can be rapidly processed to provide the desired image whereby the upper scale contrast is at least 1.2 times the lower scale contrast. Thus, dense objects can be better seen at the higher densities of the radiographic image without any adverse sensitometric changes in the lower scale densities. These films have greater dynamic range that allows them to be scanned and digitized to correct for under- or over-exposure.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: February 20, 2001
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, Phillip C. Bunch
  • Patent number: 6190847
    Abstract: A color negative silver halide photographic element is disclosed that is capable of producing images that, when converted to electronic form and then converted to a viewable form, exhibit reduced granularity. The photographic elements contain blue, green and red recording layer units capable of forming spectrally differentiated dye images. The layer units are substantially free of masking coupler, each exhibit a dye image gamma of less than 1.5 and an exposure latitude of at least 2.7 log E. Greater than 50 mole percent of development inhibitor compound in at least one of the layer units exhibits a diffusion factor of less than 0.4.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: February 20, 2001
    Assignee: Eastman Kodak Company
    Inventors: Allan F. Sowinski, Richard P. Szajewski, Frank R. Brockler, Edward J. Giorgianni, John D. Buhr, Lois A. Buitano, Maria J. Gonzalez
  • Patent number: 6187525
    Abstract: A photographic recording element is disclosed containing in at least one dye image forming layer unit (a) a radiation-sensitive silver halide grains include tabular grains (1) having {111} major faces, (2) containing greater than 50 mole percent bromide, based on silver, and (3) accounting for greater than 50 percent total grain projected area, (b) a fragmentable electron donating sensitizer, (c) a water dispersible cationic starch peptizer, and (d) a one equivalent dye image providing coupler. Increased photographic speed is realized.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: February 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Joe E. Maskasky, Kenneth J. Reed, Victor P. Scaccia, James A. Friday
  • Patent number: 6156465
    Abstract: A method of crosstalk correction comprises producing a calibration image having different printed image densities in grayscale, measuring the printed image densities at the different light exposure values to obtain a correlation of printed density in grayscale as a function of light exposure value over a range of light exposure values, obtaining experimental analytical density values for a selected light exposure value within the range of light exposure values and using the correlation of printed density as a function of light exposure value and the experimental analytical density values to correct for crosstalk.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: December 5, 2000
    Assignee: Cymbolic Sciences Inc.
    Inventors: Fred Fang Cao, Horst W. Schaaf, Susan Shuping Zhang
  • Patent number: 6154272
    Abstract: A control tool and method for calibrating a photographic printer and a photographic processor. The tool comprises an exposed unprocessed photographic filmstrip having a first image section for use in calibrating a photographic printer and a second image section for use in calibrating a photographic processor with respect to a predetermined aim. The first image section comprises a plurality of exposures of the same image, each image having a different exposure level, and the second image section comprising a plurality of density patches, each having a different exposure level. The exposed tool is developed so to determine the exposure levels. The exposure levels are compared with predetermined aims. The tool is printed if the measured data is within prescribed limits, or the film processor is adjusted in accordance with corrective measures if the measured data is outside said prescribed limits.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: November 28, 2000
    Assignee: Eastman Kodak Company
    Inventor: Peter Vanderbrook
  • Patent number: 6132943
    Abstract: A multilayer silver halide color photographic element is disclosed comprising a support bearing a light-sensitive silver halide emulsion layer and a non-diffusible yellow-colored magenta dye-forming masking coupler of the following formula ##STR1## wherein COUP is a magenta dye-forming coupler having the azo group attached to its coupling position; q is an integer of from 0 to 3, and each R' independently represents a substituent group or two R' groups together complete a ring of from 5-7 atoms, which ring may include 1 or more heteroatoms selected from O, N and S; m is 1 or 2, and DG represents a substituent of the formula ##STR2## where each L.sup.1 represents a divalent linking group, preferably --O(CH.sub.2).sub.y --, --NHCO(CH.sub.2).sub.y --, or --NRCO(CH.sub.2).sub.y --, where R represents an alkyl or aryl group and y represents an integer from 1 to 4; each k is either 0 or 1; each L.sup.2 represents --NHSO.sub.2 --, --NHCO--, --SO.sub.2 NH--, or --CONH--, preferably at least one L.sup.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: October 17, 2000
    Assignee: Eastman Kodak Company
    Inventors: Janet N. Younathan, Michael W. Crawley, Krishnan Chari
  • Patent number: 6132944
    Abstract: Disclosed is a photographic element containing a light sensitive silver halide emulsion layer having associated therewith a coupler represented by Formula I: ##STR1## wherein COUP is a coupler parent group capable of reacting with an oxidized developer to form a first dye and is bonded at a coupling position to the group ##STR2## wherein X is a or NSO.sub.2 R; R is an alkyl or aryl group; and DYE is a releasable second dye that is after release the same color as the first dye and is linked to OC.dbd.X by a moiety of the DYE having Formula (IA): ##STR3## wherein R.sup.2 is a substituent; provided there is contained in the coupler of Formula I at least one group of Formula IB:--L.sub.m --Sol IBwherein L is a divalent linking group and m is 0 or 1; and Sol is a group containing an acidic hydrogen selected from the group consisting of --ArOH, --NHSO.sub.2 R.sup.1 and --SO.sub.2 NHR.sup.1, in which AR is an aromatic group and each R.sup.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: October 17, 2000
    Assignee: Eastman Kodak Company
    Inventors: Jared B. Mooberry, Steven M. Bonser, Kevin P. Dockery, David Hoke, Chang-Kyu Kim, James J. Seifert, David T. Southby, Zheng Z. Wu
  • Patent number: 6046723
    Abstract: A method for achieving color-appearance matching for an image viewed in different surround conditions, the method comprises the steps of forming signals representing an original image; and mapping the original image signals through a transformation that alters image luminance contrast by a factor of substantially 1.01 to 1.15 for an original image viewed in a light surround to a reproduced image to be viewed in an average surround; substantially 1.01 to 1.22 for an original image viewed in a light surround to a reproduced image to be viewed in dim surround; substantially a range of 1.01 to 1.29 for an original image viewed in a light surround to a reproduced image to be viewed in an dark surround; substantially a range of 1.01 to 1.11 for an original image viewed in an average surround to a reproduced image to be viewed in an dim surround; substantially a range of 1.01 to 1.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: April 4, 2000
    Assignee: Eastman Kodak Company
    Inventors: Cathleen M. Daniels, Edward J. Giorgianni, Mark D. Fairchild
  • Patent number: 6037109
    Abstract: A method and a device for reproducing originals onto light-sensitive materials is described where unsharp masks for changing the reproduction process or the density values to be reproduced are determined from the density values of the original and from pre-specified gradation factors. Several different gradation factors are used to determine the mask of an original.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: March 14, 2000
    Assignee: AGFA-Gevaert Aktiengesellschaft AG
    Inventors: Markus Fuessel, Friedrich Jacob, Manfred Fuersich, Gudrun Taresch
  • Patent number: 6010839
    Abstract: A multilayer silver halide color photographic element is disclosed comprising a support bearing a light-sensitive silver halide emulsion layer and a non-diffusible yellow-colored magenta dye-forming masking coupler of the following formula ##STR1## wherein COUP is a magenta dye-forming coupler having the azo group attached to its coupling position; ARYL represents an aromatic group, including optionally further substituted phenyl, naphthyl or heteroaryl groups; m represents an integer of from 1 to 4; each L.sup.1 represents a divalent linking group, preferably --O(CH.sub.2).sub.y --, --NHCO(CH.sub.2).sub.y --, or --NRCO(CH.sub.2).sub.y --, where R represents an alkyl or aryl group and y represents an integer from 1 to 4; each k is either 0 or 1; each L.sup.2 represents --NHSO.sub.2 --, --NHCO--, --SO.sub.2 NH--, or --CONH--, preferably at least one L.sup.2 group being --NHSO.sub.2 -- or --SO.sub.2 NH--, more preferably --NHSO.sub.2 --; each Z represents --SO.sub.3 M or --PO.sub.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: January 4, 2000
    Assignee: Eastman Kodak Company
    Inventors: Michael W. Crawley, Krishnan Chari, Allan F. Sowinski
  • Patent number: 5998121
    Abstract: The photographic element of the invention provides a support bearing at least one photographic silver halide emulsion exhibiting low developability and having associated therewith at least one high dye-yield coupler that releases a dye or dye precursor having an electrically neutral dye chromophore. The invention also encompasses a process for forming an image in an element in accordance with the invention.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: December 7, 1999
    Assignee: Eastman Kodak Company
    Inventors: David T. Southby, James T. Kofron, Robert J. Newmiller
  • Patent number: 5972585
    Abstract: A color negative photographic element is disclosed containing yellow, magenta and cyan dye-forming couplers and masking dyes. Visual judging of the negative image obtained following processing is facilitated by choosing the masking dyes to provide, following imagewise exposure and processing, in CIE1976(L.sup.* a.sup.* b.sup.*) color space L.sup.* values of greater than 30 and C.sup.* values of less than 20, where C.sup.* values are derived from the formula: C.sup.* =[(a.sup.*).sup.2 +(b.sup.*).sup.2 ].sup.1/2.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: October 26, 1999
    Assignee: Eastman Kodak Company
    Inventors: Allan F. Sowinski, Gregory G. Gresock, Wayne F. Erickson, Ronald R. Andrews
  • Patent number: 5965335
    Abstract: A method of forming images in a silver halide photographic material having on a support at least one silver halide emulsion layer is described, which comprises a step of irradiating the photographic material with light in the process of image formation after development-processing. A silver halide photographic material comprising at least one compound having formula (I) is also described.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: October 12, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toyohisa Oya
  • Patent number: 5948601
    Abstract: The invention relates to a photographic element comprising an emulsion layer comprising a cyan dye forming coupler, an emulsion layer comprising a magenta dye forming coupler, an emulsion layer comprising a yellow dye forming coupler wherein said magenta coupler comprises ##STR1## wherein R.sub.a and R.sub.b independently represent H or a substituent; X is hydrogen or a coupling-off group; and Z.sub.a, Z.sub.b, and Z.sub.c are independently a substituted methine group, .dbd.N--, .dbd.C--, or --NH--, provided that one of either the Z.sub.a --Z.sub.b bond or the Z.sub.b --Z.sub.c bond is a double bond and the other is a single bond, and when the Z.sub.4 --Z.sub.c bond is a carbon-carbon double bond, it may form part of an aromatic ring, and at least one of Z.sub.a, Z.sub.b, and Z.sub.c represents a methine group connected to the group R.sub.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: September 7, 1999
    Assignee: Eastman Kodak Company
    Inventor: John B. Rieger
  • Patent number: 5948575
    Abstract: In a process for the manufacture of a multi-color filter array element, for use in color flat panel displays, a multi-layer color photographic material is exposed to printing light, modulated by a master. Instead of varying the conditions of the printing light in order to achieve specified calorimetric characteristics, the filter density of the pixels on the master is established such that a correct color print is obtained under fixed standard printing conditions. A method is disclosed for computing and achieving the required spectral densities on the color print and on the master.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: September 7, 1999
    Assignee: Agfa-Gevaert
    Inventor: Raymond Roosen