image analysis is an image processing technique that aims to extract features or information from images. image analysis in medicine has a special place because is a basis for disease diagnosis for physicians. electrophoresis is a laboratory separating technique. electrophoresis images are created during the electrophoresis process. serum protein and hemoglobin electrophoresis test are the most...

Automatic road extraction from aerial images can be very helpful in traffic control and vehicle guidance systems. Most of the road detection approaches are based on image segmentation algorithms. Color-based segmentation is very sensitive to light changes and consequently the change of weather condition affects the recognition rate of road detection systems. In order to reduce the light change ...

In digital image processing, image segmentation is the most important task. This paper provides an faithful image segmentation algorithm with biologically inspired technique Bacterial Foraging Optimization (BFO) for different images with different size.. The methodology of this paper is to separate R G and B planes of input image and then Revised Bacterial Foraging Optimization Algorithm (RBFOA...

Variance-based thresholding method is a very effective technology for image segmentation. However, its performance is limited in traditional one-dimensional and twodimensional scheme. In this paper, a novel two-dimensional variance thresholding scheme to improve image segmentation performance is proposed. The two-dimensional histogram of the original and local average image is projected to one-...

6,980,697 B1 * 12/2005 Basso et al .................... 382/274 7,171,023 B2 1/2007 Kim et al. 7,177,446 B2 * 2/2007 Magarey ....................... 382/103 7,403,652 B2 7/2008 Boncyk et al. 7,940,956 B2 * 5/2011 Kinoshita et al .............. 382/103 7,957,557 B2 * 6/2011 Otsu et al ...................... 382/103 7,996,409 B2 * 8/2011 Hsu et al ....................... 707/748 8,170,280 B2 * 5/...

We consider the problem of document binarization as a pre-processing step for optical character recognition (OCR) for the purpose of keyword search of historical printed documents. A number of promising techniques from the literature for binarization, pre-filtering, and post-binarization denoising were implemented along with newly developed methods for binarization: an error diffusion binarizat...

The leaf analysis in a crop can present the need of a nutrient determined in the plant. The macronutrients deficiency in the cotton crop can be identified by specific type of colors variation by leaves images. Early identification of macronutrients deficiency can help in the growing suitable of the crop and reduce the use of agricultural inputs. This study investigates the image segmentation of...

1 Division of Biostatistics and Epidemiology, University of Virginia School of Medicine, Charlottesville, VA. 2 Department of Health Science, Shiga University of Medical Science, Otsu, Shiga, Japan. 3 Pacific Health Research Institute, Honolulu, HI. 4 Honolulu Heart Program and Honolulu-Asia Aging Study, Kuakini Medical Center, Honolulu, HI. 5 Department of Geriatric Medicine, John A. Burns Sch...

Some characteristics were used in image segmentation algorithms, however, these algorithms have some inevitable limitations, so appropriate methods were selected for a variety of practical applications against specific demands of various applications. The improved Otsu algorithm was studied in this article, and in the cluster-based image segmentation algorithm, fuzzy C-means algorithm and globa...

purpose : to offer a semi-automatic algorithm to determine the area of angiographic hyperfluorescence methods : the proposed algorithm included wavelet filter, histogram equalization and modified otsu thresholding. hyperfluorescent area of 30 angiographic images obtained from patients with leaking choroidal neovascularization (cnv) and diabetic retinopathy were evaluated and the results were co...