Matches in SemOpenAlex for { <https://semopenalex.org/work/W102548248> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W102548248 abstract "The focus of this dissertation is mainly on color image, especially on the images with lossy compression. Issues related to color quantization, color correction, color image retrieval and color image quality evaluation are addressed. A no-reference color image quality index is proposed. A novel color correction method applied to low bit-rate JPEG image is developed. A novel method for content-based image retrieval based upon combined feature vectors of shape, texture, and color similarities has been suggested. In addition, an image specific color reduction method has been introduced, which allows a 24-bit JPEG image to be shown in the 8-bit color monitor with 256-color display. The reduction in download and decode time mainly comes from the smart encoder incorporating with the proposed color reduction method after color space conversion stage. To summarize, the methods that have been developed can be divided into two categories: one is visual representation, and the other is image quality measure. Three algorithms are designed for visual representation: (1) An image-based visual representation for color correction on low bit-rate JPEG images. Previous studies on color correction are mainly on color image calibration among devices. Little attention was paid to the compressed image whose color distortion is evident in low bit-rate JPEG images. In this dissertation, a lookup table algorithm is designed based on the loss of PSNR in different compression ratio. (2) A feature-based representation for content-based image retrieval. It is a concatenated vector of color, shape, and texture features from region of interest (ROI). (3) An image-specific 256 colors (8 bits) reproduction for color reduction from 16 millions colors (24 bits). By inserting the proposed color reduction method into a JPEG encoder, the image size could be further reduced and the transmission time is also reduced. This smart encoder enables its decoder using less time in decoding.Three algorithms are designed for image quality measure (IQM): (1) A referenced IQM based upon image representation in very low-dimension. Previous studies on IQMs are based on high-dimensional domain including spatial and frequency domains. In this dissertation, a low-dimensional domain IQM based on random projection is designed, with preservation of the IQM accuracy in high-dimensional domain. (2) A no-reference image blurring metric. Based on the edge gradient, the degree of image blur can be measured. (3) A no-reference color IQM based upon colorfulness, contrast and sharpness." @default.
- W102548248 created "2016-06-24" @default.
- W102548248 creator A5034343453 @default.
- W102548248 creator A5038738028 @default.
- W102548248 date "2006-01-01" @default.
- W102548248 modified "2023-09-24" @default.
- W102548248 title "Color image quality measures and retrieval" @default.
- W102548248 hasPublicationYear "2006" @default.
- W102548248 type Work @default.
- W102548248 sameAs 102548248 @default.
- W102548248 citedByCount "3" @default.
- W102548248 countsByYear W1025482482015 @default.
- W102548248 countsByYear W1025482482019 @default.
- W102548248 countsByYear W1025482482020 @default.
- W102548248 crossrefType "journal-article" @default.
- W102548248 hasAuthorship W102548248A5034343453 @default.
- W102548248 hasAuthorship W102548248A5038738028 @default.
- W102548248 hasConcept C115961682 @default.
- W102548248 hasConcept C12043971 @default.
- W102548248 hasConcept C131910990 @default.
- W102548248 hasConcept C142616399 @default.
- W102548248 hasConcept C154945302 @default.
- W102548248 hasConcept C159784718 @default.
- W102548248 hasConcept C165021410 @default.
- W102548248 hasConcept C173285193 @default.
- W102548248 hasConcept C173752661 @default.
- W102548248 hasConcept C198751489 @default.
- W102548248 hasConcept C2961294 @default.
- W102548248 hasConcept C31972630 @default.
- W102548248 hasConcept C41008148 @default.
- W102548248 hasConcept C55020928 @default.
- W102548248 hasConcept C78548338 @default.
- W102548248 hasConcept C91522604 @default.
- W102548248 hasConcept C9417928 @default.
- W102548248 hasConceptScore W102548248C115961682 @default.
- W102548248 hasConceptScore W102548248C12043971 @default.
- W102548248 hasConceptScore W102548248C131910990 @default.
- W102548248 hasConceptScore W102548248C142616399 @default.
- W102548248 hasConceptScore W102548248C154945302 @default.
- W102548248 hasConceptScore W102548248C159784718 @default.
- W102548248 hasConceptScore W102548248C165021410 @default.
- W102548248 hasConceptScore W102548248C173285193 @default.
- W102548248 hasConceptScore W102548248C173752661 @default.
- W102548248 hasConceptScore W102548248C198751489 @default.
- W102548248 hasConceptScore W102548248C2961294 @default.
- W102548248 hasConceptScore W102548248C31972630 @default.
- W102548248 hasConceptScore W102548248C41008148 @default.
- W102548248 hasConceptScore W102548248C55020928 @default.
- W102548248 hasConceptScore W102548248C78548338 @default.
- W102548248 hasConceptScore W102548248C91522604 @default.
- W102548248 hasConceptScore W102548248C9417928 @default.
- W102548248 hasLocation W1025482481 @default.
- W102548248 hasOpenAccess W102548248 @default.
- W102548248 hasPrimaryLocation W1025482481 @default.
- W102548248 hasRelatedWork W1483753672 @default.
- W102548248 hasRelatedWork W1487434277 @default.
- W102548248 hasRelatedWork W1492549343 @default.
- W102548248 hasRelatedWork W1597612660 @default.
- W102548248 hasRelatedWork W1604957153 @default.
- W102548248 hasRelatedWork W1998156127 @default.
- W102548248 hasRelatedWork W2021049654 @default.
- W102548248 hasRelatedWork W2024589961 @default.
- W102548248 hasRelatedWork W2072005114 @default.
- W102548248 hasRelatedWork W2072178421 @default.
- W102548248 hasRelatedWork W2081357090 @default.
- W102548248 hasRelatedWork W2092661809 @default.
- W102548248 hasRelatedWork W2118264196 @default.
- W102548248 hasRelatedWork W2142297777 @default.
- W102548248 hasRelatedWork W2147316407 @default.
- W102548248 hasRelatedWork W2334217738 @default.
- W102548248 hasRelatedWork W2356457712 @default.
- W102548248 hasRelatedWork W2371889927 @default.
- W102548248 hasRelatedWork W2548580662 @default.
- W102548248 hasRelatedWork W2734928352 @default.
- W102548248 isParatext "false" @default.
- W102548248 isRetracted "false" @default.
- W102548248 magId "102548248" @default.
- W102548248 workType "article" @default.