Optic disc localization in retinal images using histogram matching
نویسندگان
چکیده
منابع مشابه
Optic disc localization in retinal images using histogram matching
In this article, we propose a new method for localizing optic disc in retinal images. Localizing the optic disc and its center is the first step of most vessel segmentation, disease diagnostic, and retinal recognition algorithms. We use optic disc of the first four retinal images in DRIVE dataset to extract the histograms of each color component. Then, we calculate the average of histograms for...
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1,2 Basaveshwar engineering college, Bagalkot, Karnataka, India AbstractThe significant way for establishing screening system of glaucoma is OD localization. Disc size, shape, and segmentation plays very important role. In present work, speedy and robust methods are used for automatic OD localization. The first method is RGB to GRAY plane conversion. Later threshoding method is applied to divid...
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Diabetic retinopathy lesion detection such as exudate in fundus image of retina can lead to early diagnosis of the disease. Retinal image includes dark areas such as main blood vessels and retinal tissue and also bright areas such as optic disk, optical fibers and lesions e.g. exudate. In this paper, a multistage algorithm for the detection of exudate in foreground is proposed. The algorithm se...
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A methodology for locating the optic disc (OD) in digital retinal images is presented in this paper. Input images are intensity images (I channel of the HSI color space), resized to have a retinal diameter of 300 pixels. A shade-correction method for homogenizing the background, as well as, a set of morphological opening and closing operations for enhancing bright structures, are applied to fin...
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This paper presents a novel approach to the fast localization and extraction of optic disc from fundus images of the human retina. Optic disc continues to be a major landmark for fundus image registration and is indispensible for the understanding of retinal fundus images. For the detection of optic disc, we first decompose the image into its bit planes. The lower order bit planes are found to ...
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ژورنال
عنوان ژورنال: EURASIP Journal on Image and Video Processing
سال: 2012
ISSN: 1687-5281
DOI: 10.1186/1687-5281-2012-19