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GB2623071B - Adaptive sharpening for blocks of pixels - Google Patents

Adaptive sharpening for blocks of pixels Download PDF

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Publication number
GB2623071B
GB2623071B GB2214435.6A GB202214435A GB2623071B GB 2623071 B GB2623071 B GB 2623071B GB 202214435 A GB202214435 A GB 202214435A GB 2623071 B GB2623071 B GB 2623071B
Authority
GB
United Kingdom
Prior art keywords
pixels
blocks
adaptive sharpening
sharpening
adaptive
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.)
Active
Application number
GB2214435.6A
Other versions
GB202214435D0 (en
GB2623071A (en
Inventor
Imber James
Heyward Joseph
Beets Kristof
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.)
Imagination Technologies Ltd
Original Assignee
Imagination Technologies Ltd
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
Application filed by Imagination Technologies Ltd filed Critical Imagination Technologies Ltd
Priority to GB2214435.6A priority Critical patent/GB2623071B/en
Publication of GB202214435D0 publication Critical patent/GB202214435D0/en
Priority to US18/373,814 priority patent/US20240135506A1/en
Priority to US18/373,710 priority patent/US20240135505A1/en
Priority to US18/373,855 priority patent/US20240135507A1/en
Priority to EP23200314.5A priority patent/EP4350607A1/en
Priority to EP23200311.1A priority patent/EP4345739A1/en
Priority to EP23200313.7A priority patent/EP4345740A1/en
Publication of GB2623071A publication Critical patent/GB2623071A/en
Application granted granted Critical
Publication of GB2623071B publication Critical patent/GB2623071B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4053—Scaling of whole images or parts thereof, e.g. expanding or contracting based on super-resolution, i.e. the output image resolution being higher than the sensor resolution
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/73—Deblurring; Sharpening
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20004—Adaptive image processing
    • G06T2207/20012—Locally adaptive
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06T2207/20192—Edge enhancement; Edge preservation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
GB2214435.6A 2022-09-30 2022-09-30 Adaptive sharpening for blocks of pixels Active GB2623071B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB2214435.6A GB2623071B (en) 2022-09-30 2022-09-30 Adaptive sharpening for blocks of pixels
US18/373,814 US20240135506A1 (en) 2022-09-30 2023-09-27 Adaptive sharpening for blocks of pixels
US18/373,710 US20240135505A1 (en) 2022-09-30 2023-09-27 Adaptive sharpening for blocks of pixels
US18/373,855 US20240135507A1 (en) 2022-09-30 2023-09-27 Upsampling blocks of pixels
EP23200314.5A EP4350607A1 (en) 2022-09-30 2023-09-28 Upsampling blocks of pixels
EP23200311.1A EP4345739A1 (en) 2022-09-30 2023-09-28 Adaptive sharpening for blocks of pixels
EP23200313.7A EP4345740A1 (en) 2022-09-30 2023-09-28 Adaptive sharpening for blocks of pixels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2214435.6A GB2623071B (en) 2022-09-30 2022-09-30 Adaptive sharpening for blocks of pixels

Publications (3)

Publication Number Publication Date
GB202214435D0 GB202214435D0 (en) 2022-11-16
GB2623071A GB2623071A (en) 2024-04-10
GB2623071B true GB2623071B (en) 2024-12-11

Family

ID=84000264

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2214435.6A Active GB2623071B (en) 2022-09-30 2022-09-30 Adaptive sharpening for blocks of pixels

Country Status (1)

Country Link
GB (1) GB2623071B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116188314A (en) * 2023-02-28 2023-05-30 抖音视界有限公司 Image processing method, device, electronic equipment and storage medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993017394A1 (en) * 1992-02-26 1993-09-02 Cymbolic Sciences International Ltd. Method and apparatus for adaptively interpolating a digital image
US20090324136A1 (en) * 2008-06-27 2009-12-31 Fujitsu Limited Apparatus, method, and computer-readable recording medium for pixel interpolation
US20120082396A1 (en) * 2010-09-30 2012-04-05 Crandall Richard E Digital Image Resampling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993017394A1 (en) * 1992-02-26 1993-09-02 Cymbolic Sciences International Ltd. Method and apparatus for adaptively interpolating a digital image
US20090324136A1 (en) * 2008-06-27 2009-12-31 Fujitsu Limited Apparatus, method, and computer-readable recording medium for pixel interpolation
US20120082396A1 (en) * 2010-09-30 2012-04-05 Crandall Richard E Digital Image Resampling

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DPREVIEW.COM, "Sharpen before or after image resizing?", forum started March 2001, available from https://www.dpreview.com/forums/thread/65583 [accessed 29 Nov 2023] *
IEEE TRANSACTIONS ON IMAGE PROCESSING ,Vol 27, No 9, pp 4465-4477, 2018, Ye W. et al, "Blurriness-Guided Unsharp Masking", doi: 10.1109/TIP.2018.2838660 *
PHOTOGRAPHYLIFE.COM, Spencer Cox, "When and How to Upsample an Image", last updated 2021, available from https://photographylife.com/how-to-upsample-image [accessed 29 Nov 2023] *

Also Published As

Publication number Publication date
GB202214435D0 (en) 2022-11-16
GB2623071A (en) 2024-04-10

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