公开(公告)号：EP1583371A4

公开(公告)日：2009-01-21

申请号：EP03772709

申请日：2003-11-12

Applicant: SONY CORP

Inventor： ISHIGAMI KOICHIRO ,  KATO NAOYA

IPC: H04N9/04 ,  H04N1/46 ,  H04N1/60 ,  H04N9/64 ,  H04N9/73 ,  H04N101/00

CPC classification number: H04N1/6086 ,  H04N1/6027 ,  H04N9/735

Abstract: A light source estimating method for estimating the color characteristics of a light source with an unknown photographing scene from a sensor response in order to improve a color reproduction quality such as a white balance adjustment, wherein, in a projection conversion unit (6) using parameters obtained by computation that can be colorimetrically approximated from the known spectral sensitivity characteristics of an imaging means (4) with respect to a sensor response value (5) and from the assumed spectral characteristics of a test light source (1), a scene is projected on an image distribution (9) in an evaluation space independent of a photographing light source (2), and an evaluation unit (10) is used to estimate a correct photographing light source (2) by rating a reasonability for a plurality of test light sources (1) based on the distribution condition of the sample value of the projected scene.

公开(公告)号：EP0907283A4

公开(公告)日：2002-09-11

申请号：EP98904416

申请日：1998-02-23

Applicant: SONY CORP

Inventor： NAKABAYASHI KIYOTAKA ,  KATO NAOYA

IPC: H04N1/60 ,  H04N1/46

CPC classification number: H04N1/6083 ,  H04N1/603 ,  H04N1/6091

Abstract: RGB data outputted from a transmission-side CRT monitor (3) are converted into XYZ data by means of a profile P1 stored in a converter (11) and outputted as L M S data, then a visual environment converting circuit (12) performs a correcting process on the XYZ data, in accordance with the visual environment on the transmission side by referring to detecting signals from sensors S1 and S2. Another visual environment converting circuit (15) performs a correcting process on the L M S data in accordance with the visual environment on the reception side by referring to detecting signals from sensors S3 and S4, and supplies the obtained XYZ data to a converter (16). The converter (16) converts the XYZ data into RGB data by referring to a profile P4 and outputs the RGB data to a CRT monitor (4). Therefore, the appearances of the pictures of a transmission-side input device and a reception-side output device can be made equal to each other.

公开(公告)号：DE69733456T2

公开(公告)日：2006-03-23

申请号：DE69733456

申请日：1997-09-10

Applicant: SONY CORP

Inventor： ITO MASAHIKO ,  KATO NAOYA

IPC: H04N1/60 ,  H04N9/67 ,  G06T1/00 ,  H04N1/46 ,  H04N9/75

公开(公告)号：DE69915225T2

公开(公告)日：2005-01-20

申请号：DE69915225

申请日：1999-12-07

Applicant: SONY CORP

Inventor： NAKABAYASHI KIYOTAKA ,  KATO NAOYA

IPC: G06T1/00 ,  H04N1/46 ,  H04N1/60

Abstract: An image-processing apparatus for processing the image data input from an image-handling device and then outputting the image data to another image-handling device. The apparatus comprises a black-adaptation correction device. The black-adaptation correction device corrects the image data in consideration of the fact that adaptation to black varies from person to person, if the darkest points of the image-handling devices differ from each other. Since the image is so corrected, the colors of the images produced by the image-handling devices look almost the same in spite of the fact that the darkest points of the image-handling devices differ from each other.

公开(公告)号：ES2207845T3

公开(公告)日：2004-06-01

申请号：ES98933968

申请日：1998-07-28

Applicant: SONY CORP

Inventor： KAKINUMA KOICHIRO ,  KATO NAOYA ,  DEGUCHI TATSUYA

IPC: B41J2/21 ,  B41J2/205 ,  B41J2/525 ,  H04N1/46 ,  H04N1/60

Abstract: A printer device and a picture printing method is disclosed, in which, if the gradation for cyan is to be represented, an ink C' of low concentration is superimposed to represent the low gradation area. This cyan ink is used in combination with a high-concentration blue ink B and a high-concentration green ink G to represent a high gradation area. In representing the high gradation area the emitting proportions of the high-concentration blue ink B and the high-concentration green ink G are changed to enable the color hue in the high gradation area to be varied delicately to improve color reproducibility.

公开(公告)号：GB2369516A

公开(公告)日：2002-05-29

申请号：GB0203427

申请日：1998-11-02

Applicant: SONY CORP

Inventor： DEGUCHI TATSUYA ,  KATO NAOYA

IPC: G09G5/02 ,  H04N1/60 ,  H04N1/46 ,  G09G5/04 ,  H04N9/64

Abstract: An image transmission and reception system serves to ensure that image data transmitted, for example via the Internet 500, from an input device such as monitor 103-1, to a receiver device 103-2 is displayed correctly once received. The system comprises memories 104a-1, 104b-1 for storing a chromatic profile for the input device and initial operating information obtained when the profile was prepared. The system also comprises adding means for adding the chromatic profile, associated initial operating information and also current operating information to the input image data. This image data and associated added information may be then transmitted to the receiver device 103-2 in which the additional information (initial and current operating information, and initial chromatic profile) is processed in image processing section 600 to be extracted from the image data; it is then used to correct the image data for display at the receiver.

公开(公告)号：DE69818218D1

公开(公告)日：2003-10-23

申请号：DE69818218

申请日：1998-07-28

Applicant: SONY CORP

Inventor： KAKINUMA KOICHIRO ,  KATO NAOYA ,  DEGUCHI TATSUYA

IPC: B41J2/21 ,  B41J2/205 ,  B41J2/525 ,  H04N1/46 ,  H04N1/60

Abstract: A printer device and a picture printing method is disclosed, in which, if the gradation for cyan is to be represented, an ink C' of low concentration is superimposed to represent the low gradation area. This cyan ink is used in combination with a high-concentration blue ink B and a high-concentration green ink G to represent a high gradation area. In representing the high gradation area the emitting proportions of the high-concentration blue ink B and the high-concentration green ink G are changed to enable the color hue in the high gradation area to be varied delicately to improve color reproducibility.

公开(公告)号：GB2369740A

公开(公告)日：2002-06-05

申请号：GB0203426

申请日：1998-11-02

Applicant: SONY CORP

Inventor： DEGUCHI TATSUYA ,  KATO NAOYA

IPC: G09G5/02 ,  H04N1/60 ,  H04N9/64 ,  G09G5/04 ,  H04N9/68

Abstract: A display device such as a cathode ray tube (CRT) comprises image processing apparatus having a first detection means for detecting any emission of light from the display in a state with no image data being displayed, and a second detection means for detecting if a law of colour addition holds true or not (S62). The apparatus also includes means for generating (3 x 4) matrices that allow device independent colour signal elements to be obtained, allowing for the offsetting of any light that is present in a display condition where there is no image data present.

公开(公告)号：GB2335326B

公开(公告)日：2002-04-17

申请号：GB9914579

申请日：1998-11-02

Applicant: SONY CORP

Inventor： DEGUCHI TATSUYA ,  KATO NAOYA

IPC: G06F3/14 ,  G09G5/00 ,  G09G5/02 ,  H04N1/60 ,  H04N5/58 ,  H04N9/64

Abstract: Information on ambient light (viewing environment information) input from ambient light input section 101 is fed to viewing environment converting section 100a, which determines measured color values of monitor 103, and then fed to profile updating section 100b and contrast correcting section 100d. The contrast correcting section 100d corrects the contrast according to the measured color values. Information on the setting of the monitor 103 fed from monitor control section 102 is supplied to monitor setting values converting section 100c, where TRCs and a matrix are generated according to the modified setting information and supplied to the profile updating section 100b. The profile updating section 100b updates the profiles stored in memory 104a by means of newly generated profiles.

公开(公告)号：AU743097B2

公开(公告)日：2002-01-17

申请号：AU8359098

申请日：1998-07-28

Applicant: SONY CORP

Inventor： KAKINUMA KOICHIRO ,  KATO NAOYA ,  DEGUCHI TATSUYA

IPC: B41J2/21 ,  B41J2/205 ,  B41J2/525 ,  H04N1/46 ,  H04N1/60

Abstract: A printer device and a picture printing method is disclosed, in which, if the gradation for cyan is to be represented, an ink C' of low concentration is superimposed to represent the low gradation area. This cyan ink is used in combination with a high-concentration blue ink B and a high-concentration green ink G to represent a high gradation area. In representing the high gradation area the emitting proportions of the high-concentration blue ink B and the high-concentration green ink G are changed to enable the color hue in the high gradation area to be varied delicately to improve color reproducibility.