Hardware-efficient debanding and visual enhancement filter for inverse tone mapped high dynamic range images and videos

If a low dynamic range (LDR) image or video is inverse tone mapped to a higher dynamic range, there can be banding artifacts in the output high dynamic range (HDR) image or video. We design a selective sparse filter to remove the banding artifacts and at the same time preserve edges and details. The...

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Published in2016 IEEE International Conference on Image Processing (ICIP) pp. 3299 - 3303
Main Authors Qing Song, Guan-Ming Su, Cosman, Pamela C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2016
Subjects
debanding
Dynamic range
false contour removal
Finite impulse response filters
high dynamic range
Image color analysis
Image edge detection
Memory management
Sparse filter
Videos
visual enhancement
Visualization
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Abstract If a low dynamic range (LDR) image or video is inverse tone mapped to a higher dynamic range, there can be banding artifacts in the output high dynamic range (HDR) image or video. We design a selective sparse filter to remove the banding artifacts and at the same time preserve edges and details. The filter is able to reduce other artifacts, such as blocky artifacts which are due to the compression of the LDR image/video. The filter is computationally efficient.
AbstractList If a low dynamic range (LDR) image or video is inverse tone mapped to a higher dynamic range, there can be banding artifacts in the output high dynamic range (HDR) image or video. We design a selective sparse filter to remove the banding artifacts and at the same time preserve edges and details. The filter is able to reduce other artifacts, such as blocky artifacts which are due to the compression of the LDR image/video. The filter is computationally efficient.
Author Qing Song
Cosman, Pamela C.
Guan-Ming Su
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  surname: Qing Song
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  organization: Dept. of Electr. & Comp. Eng., UC San Diego, La Jolla, CA, USA
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  surname: Guan-Ming Su
  fullname: Guan-Ming Su
  organization: Dolby Labs., Inc., Sunnyvale, CA, USA
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  givenname: Pamela C.
  surname: Cosman
  fullname: Cosman, Pamela C.
  organization: Dept. of Electr. & Comp. Eng., UC San Diego, La Jolla, CA, USA
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Snippet If a low dynamic range (LDR) image or video is inverse tone mapped to a higher dynamic range, there can be banding artifacts in the output high dynamic range...
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StartPage 3299
SubjectTerms debanding
Dynamic range
false contour removal
Finite impulse response filters
high dynamic range
Image color analysis
Image edge detection
Memory management
Sparse filter
Videos
visual enhancement
Visualization
Title Hardware-efficient debanding and visual enhancement filter for inverse tone mapped high dynamic range images and videos
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