Contrast enhancement of medical ultrasonic images based on homogeneity measurement

Objetive: To explore a method about contrast enhancement of medical ultrasonic images based on homogeneity measurement. Methods: Contrast enhancement method based on homogeneity measurement was utilized to enhance the contrast of ultrasonic images. The local Fuzzy fractal dimension was introduced. The algorithms of homogeneity and the contrast transformation factor were modified. Meanwhile, the adaptive algorithm of the contrast enhance constant was proposed. Results: The experimental results showed that the processed image could effectively suppress the background and noises, preserve details and enhance contrast. Conclusion: Comparing to traditional methods, the improved algorithm prevails in preserving original images detail without over-enhancing the noise. Thus, the proposed method gains efficiency for medical ultrasonic images.