H04N 1/6027
Correction or control of colour gradation or colour contrast
Official title: {Correction or control of colour gradation or colour contrast (H04N1/6058 takes precedence)}
H04N1/6027 (Correction or control of colour gradation or colour contrast) appears on 1,309 US grants and 1,218 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,309
- Published applications
- 1,218
- Assignees
- 344
- Inventors
- 2,149
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 11 | 0 |
| 1988 | 8 | 0 |
| 1989 | 15 | 0 |
| 1990 | 16 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 10 | 0 |
| 1994 | 14 | 0 |
| 1995 | 12 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 24 | 0 |
| 1999 | 27 | 0 |
| 2000 | 17 | 0 |
| 2001 | 17 | 11 |
| 2002 | 16 | 28 |
| 2003 | 17 | 41 |
| 2004 | 24 | 41 |
| 2005 | 23 | 53 |
| 2006 | 32 | 53 |
| 2007 | 39 | 59 |
| 2008 | 38 | 45 |
| 2009 | 38 | 54 |
| 2010 | 41 | 23 |
| 2011 | 49 | 37 |
| 2012 | 44 | 42 |
| 2013 | 44 | 37 |
| 2014 | 54 | 46 |
| 2015 | 55 | 59 |
| 2016 | 50 | 68 |
| 2017 | 71 | 103 |
| 2018 | 74 | 75 |
| 2019 | 84 | 82 |
| 2020 | 76 | 70 |
| 2021 | 62 | 55 |
| 2022 | 54 | 39 |
| 2023 | 50 | 39 |
| 2024 | 28 | 22 |
| 2025 | 19 | 23 |
| 2026 | 13 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Information processing apparatus, non-transitory computer readable medium storing computer program, and information processing method29 Sep 2026US 12,750,454 B2FUJIFILM Business Innovation Corp.
- Information processing apparatus, non-transitory computer readable medium storing information processing program, and information processing method22 Sep 2026US 12,744,857 B2FUJIFILM Business Innovation Corp.
- Color correction method, image forming device and storage medium22 Sep 2026US 12,744,858 B2Zhuhai Pantum Electronics Co., Ltd.
- Image processing device, electronic device having the same, and operating method thereof11 Aug 2026US 12,707,017 B2Samsung Electronics Co., Ltd.
- Display apparatus correcting image in consideration of user's perceptual distortion5 May 2026US 12,620,335 B2Samsung Electronics Co., Ltd.
- Information processing system, and non-transitory computer readable medium10 Sep 2026US 2026/0270363 A1FUJIFILM Business Innovation Corp.
- Method and system for calculating color fastness of textile method27 Aug 2026US 2026/0254914 A1Dongguan Fengzhen Testing Equipment Co., Ltd.
- Energy aware sl-hdr6 Aug 2026US 2026/0228869 A1InterDigital CE Patent Holdings, SAS
- Image processing apparatus and method2 Jul 2026US 2026/0189668 A1Canon Kabushiki Kaisha
- Image processor formed in an array of memory cells2 Jul 2026US 2026/0189669 A1Lodestar Licensing Group LLC
Most cited
By later US patents
- Contrast enhancement of an image using luminance and RGB statistical metrics214US 6,393,148 B1Hewlett-Packard Company · 2002
- Strategy for pictorial digital image processing208US 6,249,315 B12001
- Color matching and color correction for images forming a panoramic image191US 7,840,067 B2ArcSoft, Inc. · 2010
- Color image reproduction of scenes with color enhancement and preferential tone mapping182US 5,528,339 AEastman Kodak Company · 1996
- Color conversion method and apparatus179US 5,937,089 AOki Data Corporation · 1999