GB9705871D0 - Processing image data - Google Patents

Processing image data

Info

Publication number
GB9705871D0
GB9705871D0 GBGB9705871.3A GB9705871A GB9705871D0 GB 9705871 D0 GB9705871 D0 GB 9705871D0 GB 9705871 A GB9705871 A GB 9705871A GB 9705871 D0 GB9705871 D0 GB 9705871D0
Authority
GB
United Kingdom
Prior art keywords
image
film
colour
grain
images
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB9705871.3A
Other versions
GB2312124A (en
GB2312124B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Discreet Logic Inc
Original Assignee
Discreet Logic Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB9607633.6A external-priority patent/GB9607633D0/en
Application filed by Discreet Logic Inc filed Critical Discreet Logic Inc
Priority to GB9705871A priority Critical patent/GB2312124B/en
Publication of GB9705871D0 publication Critical patent/GB9705871D0/en
Publication of GB2312124A publication Critical patent/GB2312124A/en
Application granted granted Critical
Publication of GB2312124B publication Critical patent/GB2312124B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • G06T5/70—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10024—Color image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20204—Removing film grain; Adding simulated film grain
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 

Abstract

Image data is processed by identifying a region of substantially constant colour within a first image. Colour variations, in terms of standard deviation about an average colour, are analysed and a similar level of variation is applied to a second image. The first image may be derived from cinematographic film, with colour variations due to film grain. The second image may be a video image or a computer generated image and the application of a similar level of variation may reproduce noise similar to that present within the film due to grain. In this way, it is possible to add grain to non-filmed images so as to match said images to images derived from film.
GB9705871A 1996-04-12 1997-03-21 Processing image data Expired - Fee Related GB2312124B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9705871A GB2312124B (en) 1996-04-12 1997-03-21 Processing image data

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9607633.6A GB9607633D0 (en) 1996-04-12 1996-04-12 Grain matching of composite image in image
GB9705871A GB2312124B (en) 1996-04-12 1997-03-21 Processing image data

Publications (3)

Publication Number Publication Date
GB9705871D0 true GB9705871D0 (en) 1997-05-07
GB2312124A GB2312124A (en) 1997-10-15
GB2312124B GB2312124B (en) 1998-05-13

Family

ID=26309116

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9705871A Expired - Fee Related GB2312124B (en) 1996-04-12 1997-03-21 Processing image data

Country Status (1)

Country Link
GB (1) GB2312124B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7742655B2 (en) 2003-05-15 2010-06-22 Thomson Licensing Method and apparatus for representing image granularity by one or more parameters
ZA200602350B (en) 2003-09-23 2007-09-26 Thomson Licensing Method for simulating film grain by mosaicing pre-computed samples
PL1673944T3 (en) 2003-10-14 2020-03-31 Interdigital Vc Holdings, Inc. Technique for bit-accurate film grain simulation
US8150206B2 (en) 2004-03-30 2012-04-03 Thomson Licensing Method and apparatus for representing image granularity by one or more parameters
KR101096916B1 (en) 2004-10-18 2011-12-22 톰슨 라이센싱 Film grain simulation method
JP4960877B2 (en) 2004-11-12 2012-06-27 トムソン ライセンシング Film grain simulation for normal playback and trick mode playback of video playback system
ATE553455T1 (en) 2004-11-16 2012-04-15 Thomson Licensing METHOD FOR SIMULATING FILM GRAIN BASED ON PRECALCULATED TRANSFORMATION COEFFICIENTS
TR201911138T4 (en) 2004-11-17 2019-08-21 Interdigital Vc Holdings Inc Bit-free film grain simulation method based on pre-computed transformed coefficients.
EP1817915A2 (en) 2004-11-22 2007-08-15 THOMSON Licensing Methods, apparatus and system for film grain cache splitting for film grain simulation
ZA200704141B (en) 2004-11-23 2008-08-27 Thomson Licensing Low-complexity film grain simulation technique
CN101065971B (en) 2004-11-24 2014-01-01 汤姆森许可贸易公司 Film grain simulation technique for use in media playback devices
US10715834B2 (en) 2007-05-10 2020-07-14 Interdigital Vc Holdings, Inc. Film grain simulation based on pre-computed transform coefficients

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771342A (en) * 1985-05-01 1988-09-13 Emf Partners, Ltd. Method and apparatus for enhancing video-recorded images to film grade quality
US4935816A (en) * 1989-06-23 1990-06-19 Robert A. Faber Method and apparatus for video image film simulation
US5319465A (en) * 1991-09-20 1994-06-07 Sony Pictures Entertainment, Inc. Method for generating film quality images on videotape
US5335013A (en) * 1992-01-16 1994-08-02 Faber Robert A Method and apparatus for video camera image film simulation
US5475425B1 (en) * 1994-01-25 2000-07-25 Przyborski Production Apparatus and method for creating video ouputs that emulate the look of motion picture film

Also Published As

Publication number Publication date
GB2312124A (en) 1997-10-15
GB2312124B (en) 1998-05-13

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090321