CA1283477C - Correction des ombrages dans les images video - Google Patents

Correction des ombrages dans les images video

Info

Publication number: CA1283477C
Authority: CA; Canada
Prior art keywords: image; pel; median; value; pels
Prior art date: 1985-02-01
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.): Expired - Lifetime

Application number

CA000498545A

Other languages

English (en)

Inventor

Dimitris Anastassiou

William B. Pennebaker

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.)

International Business Machines Corp

Original Assignee

International Business Machines Corp

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.)

1985-02-01

Filing date

1985-12-23

Publication date

1991-04-23

1985-02-01 Priority claimed from US06/697,300 external-priority patent/US4695884A/en

1985-12-23 Application filed by International Business Machines Corp filed Critical International Business Machines Corp

1991-04-23 Application granted granted Critical

1991-04-23 Publication of CA1283477C publication Critical patent/CA1283477C/fr

2008-04-23 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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Landscapes

Facsimile Image Signal Circuits (AREA)

CA000498545A 1985-02-01 1985-12-23 Correction des ombrages dans les images video Expired - Lifetime CA1283477C (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US06/697,300 US4695884A (en)	1982-12-30	1985-02-01	Correction of shading effects in video images
US697,300		1985-02-01

Publications (1)

Publication Number	Publication Date
CA1283477C true CA1283477C (fr)	1991-04-23

Family

ID=24800581

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000498545A Expired - Lifetime CA1283477C (fr)	1985-02-01	1985-12-23	Correction des ombrages dans les images video

Country Status (1)

Country	Link
CA (1)	CA1283477C (fr)

1985
- 1985-12-23 CA CA000498545A patent/CA1283477C/fr not_active Expired - Lifetime

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Legal Events

Date	Code	Title	Description
1994-10-24	MKLA	Lapsed