Fuzzy Based Contrast Stretching for Medical Image Enhancement
نویسندگان
چکیده
Contrast Stretching is an important part in medical image processing applications. Contrast is the difference between two adjacent pixels. Fuzzy statistical values are analyzed and better results are produced in the spatial domain of the input image. The histogram mapping produces the resultant image with less impulsive noise and smooth nature. The probabilities of gray values are generated and the fuzzy set is determined from the position of the input image pixel. The result indicates the good performance of the proposed fuzzy based stretching. The inverse transform of the real values are mapped with the input image to generate the fuzzy statistics. This approach gives a flexible image enhancement for medical images in the presence of noises.
منابع مشابه
Performance Analysis of Contrast Stretching Enhancement Techniques for Medical Images
Leukemia is a malignant disease (cancer) that affects people in any age either they are children or adults over 50 years old. Nowadays, there are screening system guidelines for leukemia patients. The screening result from looking at a sample of patient blood, can determine the abnormal levels of white blood cells, which may suggest leukemia for further diagnostic stage. Therefore, medical prof...
متن کاملMedical Image Enhancement Algorithm Using Edge-Based Denoising and Adaptive Histogram Stretching
In the production of medical images, noise reduction and contrast enhancement are important methods to increase qualities of processing results. Wavelet transforms have shown promising results for localization in both time and frequency, and hence have been used for image processing applications including noise removal. By using the edge-based denoising and adaptive nonlinear histogram stretchi...
متن کاملEstimation of Roughness Parameters of A Surface Using Different Image Enhancement Techniques (TECHNICAL NOTE)
Surface roughness measurement is widely used to estimate the quality of the product during manufacturing processes. It has a great importance in manufacturing fields such as ceramic tiles, glass, and iron. Many are using surface profile-meter with a contact stylus to measure the surface roughness of work piece. In the stylus method, a stylus is moved along the surface and the vertical movement ...
متن کاملImage Enhancement Using Multilevel Contrast Stretching and Noise Smoothening Technique for CT Images
Image enhancement is the process of improving the visual quality of an image. This paper proposes a new algorithm called Multilevel Contrast Stretching and a Noise smoothening technique for enhancement of medical images. The scanned images or X-ray images are possibly affected by illumination, sharpness, contrast and noises, due to this degradation, and as result the diagnosis of disease become...
متن کاملA Quantitative Investigation on the Effect of Edge Enhancement for Improving Visual Acuity at Different Levels of Contrast
Background: The major limitation in human vision is refractive error. Auxiliary equipment and methods for these people are not always available. In addition, limited range of accommodation in adult people when switching from a far point to a near point is not simply possible. In this paper, we are looking for solutions to use the facilities of digital image processing and displaying to improve ...
متن کامل