Method for enhancing blood vessels in retinal images based on the directional field
A retina and direction field technology, applied in the field of image processing, can solve problems such as difficulties in automatic realization
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[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0040] The core idea of the present invention is to propose a method for enhancing retinal image blood vessels based on a direction field, and to enhance the image point by point under the guidance of a fine direction field. The method includes the following steps: Estimating the direction field θ of the retinal image; automatically enhancing the blood vessels in the image under the guidance of the direction field; filtering out the noise in the enhanced image with a Gabor filter.
[0041] like figure 1 as shown, figure 1 A flow chart of the method for enhancing retinal image blood vessels based on the direction field provided by the present invention, the method includes the following steps:
[0042] Step 1: Calculat...
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