Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Image sharpening in the JPEG domain.

K Konstantinides1, V Bhaskaran, G Beretta

  • 1Stream Machine, San Jose, CA 95131, USA. kk@streammachine.com

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
|February 13, 2008
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Impact of Asialoglycoprotein Receptor and Mannose Receptor Deficiency on Murine Plasma N-glycome Profiles.

Molecular & cellular proteomics : MCP·2023
Same author

Functional Improvement After Outpatient Cardiac Rehabilitation in Acute Coronary Syndrome Patients is Not Related to Improvement in Left Ventricular Ejection Fraction.

High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension·2020
Same author

Leopoldia comosa prevents metabolic disorders in rats with high-fat diet-induced obesity.

European journal of nutrition·2018
Same author

Tumor-derived fibulin-3 activates pro-invasive NF-κB signaling in glioblastoma cells and their microenvironment.

Oncogene·2017
Same author

Estimating 12-week death probability in patients with refractory metastatic colorectal cancer: the Colon Life nomogram.

Annals of oncology : official journal of the European Society for Medical Oncology·2016
Same author

GC-MS characterisation and biological activity of essential oils from different vegetative organs of Plectranthus barbatus and Plectranthus caninus cultivated in north Italy.

Natural product research·2014
Same journal

Mask-guided Asymmetric Contrastive and Semantic Alignment for Unsupervised Person Re-Identification.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2026
Same journal

Hyperbolic Cycle Alignment for Infrared-Visible Image Fusion.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2026
Same journal

Learning Gaze Synthesizer via 3D-eye Controlled Diffusion and Cross-domain Feature Alignment.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2026
Same journal

Underlying Semantic Diffusion for Effective and Efficient In-Context Learning.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2026
Same journal

DiffRES: Unleashing Text-to-Image Diffusion Models for Generative Referring Expression Segmentation without Information Leakage.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2026
Same journal

Location Matters: Frequency-Spatial Dual Space Adaptation for Cross-Domain Few-Shot Segmentation.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2026
See all related articles

This study introduces a novel method for sharpening JPEG-compressed images by adjusting the discrete cosine transform quantization table. This technique enhances image quality without increasing computational load or affecting compression efficiency.

Area of Science:

  • Digital Image Processing
  • Computer Vision

Background:

  • JPEG compression is widely used but can degrade image quality, particularly high-frequency details.
  • Sharpening compressed images is challenging without introducing artifacts or increasing file size.

Purpose of the Study:

  • To develop an efficient image sharpening technique for JPEG-compressed images.
  • To enhance high-frequency characteristics of images within the discrete cosine transform domain.

Main Methods:

  • A novel method for sharpening images compressed using the JPEG standard is proposed.
  • The technique involves scaling elements of the encoding quantization table in the discrete cosine transform domain.
  • The modified quantization table is transmitted instead of the original.

Related Experiment Videos

Main Results:

  • Experimental results demonstrate improved text and image quality for scanned images.
  • The method achieves sharpening without any additional computational cost.
  • Image compressibility is not negatively affected by the proposed technique.

Conclusions:

  • The presented technique offers an effective way to sharpen JPEG-compressed images.
  • This approach enhances visual quality without compromising computational efficiency or compression performance.