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Digital image

About: Digital image is a(n) research topic. Over the lifetime, 36804 publication(s) have been published within this topic receiving 607885 citation(s). more


Open accessBook
Anil K. Jain1Institutions (1)
03 Oct 1988-
Abstract: Introduction. 1. Two Dimensional Systems and Mathematical Preliminaries. 2. Image Perception. 3. Image Sampling and Quantization. 4. Image Transforms. 5. Image Representation by Stochastic Models. 6. Image Enhancement. 7. Image Filtering and Restoration. 8. Image Analysis and Computer Vision. 9. Image Reconstruction From Projections. 10. Image Data Compression. more

Topics: Image restoration (76%), Standard test image (74%), Image processing (73%) more

8,403 Citations

Proceedings ArticleDOI: 10.1109/CVPR.2005.38
20 Jun 2005-
Abstract: We propose a new measure, the method noise, to evaluate and compare the performance of digital image denoising methods. We first compute and analyze this method noise for a wide class of denoising algorithms, namely the local smoothing filters. Second, we propose a new algorithm, the nonlocal means (NL-means), based on a nonlocal averaging of all pixels in the image. Finally, we present some experiments comparing the NL-means algorithm and the local smoothing filters. more

Topics: Non-local means (74%), Video denoising (66%), Smoothing (60%) more

5,832 Citations

Journal ArticleDOI: 10.1109/34.87344
Luc Vincent1, Pierre Soille1Institutions (1)
Abstract: A fast and flexible algorithm for computing watersheds in digital gray-scale images is introduced. A review of watersheds and related motion is first presented, and the major methods to determine watersheds are discussed. The algorithm is based on an immersion process analogy, in which the flooding of the water in the picture is efficiently simulated using of queue of pixel. It is described in detail provided in a pseudo C language. The accuracy of this algorithm is proven to be superior to that of the existing implementations, and it is shown that its adaptation to any kind of digital grid and its generalization to n-dimensional images (and even to graphs) are straightforward. The algorithm is reported to be faster than any other watershed algorithm. Applications of this algorithm with regard to picture segmentation are presented for magnetic resonance (MR) imagery and for digital elevation models. An example of 3-D watershed is also provided. > more

Topics: Image segmentation (54%), Digital image (52%), Pixel (51%) more

4,698 Citations

Open accessBook
01 Jan 2011-
Abstract: "This guide clearly explains the acquisition and use of digital images in a wide variety of scientific fields. This sixth edition features new sections on selecting a camera with resolution appropriate for use on light microscopes, on the ability of current cameras to capture raw images with high dynamic range, and on imaging in more than two dimensions. It discusses Dmax for X-ray images and combining images with different exposure settings to further extend the dynamic range. This edition also includes a new chapter on shape measurements, a review of new developments in image file searching, and a wide range of new examples and diagrams" more

Topics: Digital image (58%), Image processing (56%), Image file formats (54%) more

3,008 Citations

Open access
01 Nov 1971-
Abstract: Image processing techniques find applications in many areas, chief among which are image enhancement, pattern recognition, and efficient picture coding. Some aspects of image processing are discussed--specifically: the mathematical operations one is likely to encounter, and ways of implementing them by optics and on digital computers; image description; and image quality evaluation. Many old results are reviewed, some new ones presented, and several open questions are posed. more

Topics: Digital image processing (68%), Image processing (68%), Automatic image annotation (62%) more

2,961 Citations

No. of papers in the topic in previous years

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Topic's top 5 most impactful authors

Xiaoxun Zhu

102 papers, 1.9K citations

Andrew C. Gallagher

87 papers, 2.3K citations

Anatoly Kotlarsky

72 papers, 650 citations

Peter Corcoran

64 papers, 5.2K citations

Kenneth A. Parulski

60 papers, 3.7K citations

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