-
公开(公告)号：CA2345908C
公开(公告)日：2007-12-18
申请号：CA2345908
申请日：2001-05-02
Applicant: XEROX CORP
Inventor： WANG YAO RONG , MESTHA LINGAPPA K , BALASUBRAMANIAN THYAGARAJAN , MALTZ MARTIN S , ROLLESTON ROBERT J , JACKSON ERIC , CREAN PETER A
IPC: B41J29/46 , H04N1/60 , B41J2/525 , G01J3/46 , G03G15/00 , G03G15/01 , G06K15/02 , G06T1/00 , G06T7/40 , G09G5/02 , H04N1/407 , H04N1/46
Abstract: A color marking device including a control system for calibration of the device based upon dynamic color balance control of an output image. The system comprises a front end converter for converting an input signal representativ e of a target image comprising a preselected color into a device-dependent control signal in accordance with a device TRC, a color marking device for outputting an outpu t image in response to the control signal, a sensor for measuring a parameter from t he output image representative of a color of the output image, and, a point-wise controller for comparing the parameter with a corresponding parameter from the target image and constructing adjusted controlled points for the device TRC when the measured parameter and the corresponding parameter vary by a preselected value, a col or balance controller for constructing an adjusted device TRC from the controll ed points, whereby subsequently generated output images are output with the adjusted device TRC and, more accurately represent target input images.
-
公开(公告)号：DE60026796D1
公开(公告)日：2006-05-11
申请号：DE60026796
申请日：2000-09-15
Applicant: XEROX CORP
Inventor： SAMPATH MEERA , GODAMBE ASHOK , JACKSON ERIC , MALLOW EDWARD W
-
公开(公告)号：CA2345908A1
公开(公告)日：2001-11-05
申请号：CA2345908
申请日：2001-05-02
Applicant: XEROX CORP
Inventor： MALTZ MARTIN S , WANG YAO RONG , ROLLESTON ROBERT J , BALASUBRAMANIAN THYAGARAJAN , JACKSON ERIC , CREAN PETER A , MESTHA LINGAPPA K
IPC: B41J29/46 , B41J2/525 , G03G15/00 , G03G15/01 , G06T1/00 , H04N1/407 , H04N1/46 , H04N1/60 , G06K15/02 , G01J3/46 , G06F3/14 , G06F13/10 , G06T7/40
Abstract: A color marking device including a control system for calibration of the device based upon dynamic color balance control of an output image. The system comprises a front end converter for converting an input signal representativ e of a target image comprising a preselected color into a device-dependent control signal in accordance with a device TRC, a color marking device for outputting an outpu t image in response to the control signal, a sensor for measuring a parameter from t he output image representative of a color of the output image, and, a point-wise controller for comparing the parameter with a corresponding parameter from the target image and constructing adjusted controlled points for the device TRC when the measured parameter and the corresponding parameter vary by a preselected value, a col or balance controller for constructing an adjusted device TRC from the controll ed points, whereby subsequently generated output images are output with the adjusted device TRC and, more accurately represent target input images.
-
公开(公告)号：DE60135178D1
公开(公告)日：2008-09-18
申请号：DE60135178
申请日：2001-05-03
Applicant: XEROX CORP
Inventor： MESTHA LINGAPPA K , CREAN PETER A , MALTZ MARTIN S , ROLLESTON ROBERT J , WANG YAO RONG , JACKSON ERIC , BALASUBRAMANIAN RAJA
-
公开(公告)号：DE60026796T2
公开(公告)日：2006-10-12
申请号：DE60026796
申请日：2000-09-15
Applicant: XEROX CORP
Inventor： SAMPATH MEERA , GODAMBE ASHOK , JACKSON ERIC , MALLOW EDWARD W
-
Patent Agency Ranking
公开(公告)号：BR0101793A
公开(公告)日：2001-12-18
申请号：BR0101793
申请日：2001-05-07
Applicant: XEROX CORP
-
公开(公告)号：DE60126897T2
公开(公告)日：2007-06-14
申请号：DE60126897
申请日：2001-12-05
Applicant: XEROX CORP
Inventor： BARES JAN , FURST MICHAEL R , MESHTA LINGAPPA K , HARRINGTON STEVEN J , JACKSON ERIC
IPC: B41J29/38 , G06K9/62 , B41J5/30 , B41J21/00 , B41J29/40 , G06F3/12 , G06K1/12 , G06K15/02 , G06T7/40 , G06T11/00 , H04N1/46 , H04N1/60
Abstract: A printing system accurately prints proprietary marks and selected colors. A dictionary of recognizable patterns and defined colors corresponding to the proprietary marks and selected colors is linked to a user interface wherein a user may designate a location within a document and at least one of the proprietary marks with defined colors from an accessible menu. A processor associates the defined colors with the image at the specified location and generates a printer signal representative thereof. Alternatively, the processor includes a pattern recognizer for identifying recognizable patterns within a document. The patterns have a likeness to defined patterns within a pattern dictionary and can be converted to the defined patterns for display or imaging.
-
公开(公告)号：DE60126897D1
公开(公告)日：2007-04-12
申请号：DE60126897
申请日：2001-12-05
Applicant: XEROX CORP
Inventor： BARES JAN , FURST MICHAEL R , MESHTA LINGAPPA K , HARRINGTON STEVEN J , JACKSON ERIC
IPC: B41J29/38 , G06K9/62 , B41J5/30 , B41J21/00 , B41J29/40 , G06F3/12 , G06K1/12 , G06K15/02 , G06T7/40 , G06T11/00 , H04N1/46 , H04N1/60
Abstract: A printing system accurately prints proprietary marks and selected colors. A dictionary of recognizable patterns and defined colors corresponding to the proprietary marks and selected colors is linked to a user interface wherein a user may designate a location within a document and at least one of the proprietary marks with defined colors from an accessible menu. A processor associates the defined colors with the image at the specified location and generates a printer signal representative thereof. Alternatively, the processor includes a pattern recognizer for identifying recognizable patterns within a document. The patterns have a likeness to defined patterns within a pattern dictionary and can be converted to the defined patterns for display or imaging.
-
公开(公告)号：JP2002033935A
公开(公告)日：2002-01-31
申请号：JP2001128200
申请日：2001-04-25
Applicant: XEROX CORP
Inventor： MESTHA LINGAPPA K , CREAN PETER A , MALTZ MARTIN S , ROLLESTON ROBERT J , WANG YAO RONG , JACKSON ERIC , BALASUBRAMANIAN THYAGARAJAN
Abstract: PROBLEM TO BE SOLVED: To simply calibrate the color adjustment of an output image in a color-marking apparatus. SOLUTION: A target image which is composed of a preselection color, which is selected in advance, is converted into a control signal by a front-end converter 14 according to the color reproduction curve of the color marking apparatus 10. The apparatus 10 performs marking operation of the output image by the control signal, and a parameter which indicates the color of the image is measured by a sensor 12, on the basis of the image. According to the parameter, a point control-type controller 26 creates a control point for tone reproduction curve adjustment. A color balance controller 24 creates a color reproduction curve of the apparatus, on the basis of the control point.
-
公开(公告)号：JPH10181104A
公开(公告)日：1998-07-07
申请号：JP31857097
申请日：1997-11-19
Applicant: XEROX CORP
Inventor： MESTHA LINGAPPA K , WANG YAO RONG , DIANAT SOHAIL A , KHARGONEKAR PRAMOD P , KODITSCHEK DANIEL E , JACKSON ERIC , THIERET TRACY E
Abstract: PROBLEM TO BE SOLVED: To obtain a new improved technique for process control by connecting a specified expected tone reproduction curve with a tone reproduction sample to reconstitute a tone reproduction curve and by controlling a machine operation in response to the tone reproduction curve reconstituted. SOLUTION: In a image forming system having a control device comprising a set of actuator for projecting a printed image on a printed image forming surface, a image forming system is modeled with regard to an actuator for forming an expected tone reproduction curve. The expected tone reproduction curve is defined by a formula and an optional tone reproduction sample is obtained. The expected tone reproduction curve is connected with the tone reproduction sample to reconstitute a tone reproduction curve and a machine operation is controlled in response to the tone reproduction curve reconstituted. Here, in the formula, C is TRC measured, C▵ is TRC forecasted and C-is TRC reconstituted.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.02 seconds)
