A Comparison of Image Enhancement Methods for Lumbar Spine X-ray Image
Jennarong Saenpaen, Sujitra Arwatchananukul, Nattapol Aunsri · 2018
A preprocessing technique is an essential in image processing. It enhances details of the image including edges before continuing further image processing. In this work, we compare three image enhancement methods for improving the contrast and details of the X-ray images that are needed for medical diagnosis subsequently. The image enhancement methods including Brightness Preserving Dynamic Fuzzy Histogram Equalization (BPDFHE), Histogram Equalization (HE), and Contrast Limited Adaptive Histogram Equalization (CLAHE) were performed for purpose. Comparison of enhancing results are discussed. In this experiment, the results from the enhanced lumbar spine X-ray images show that the CLAHE technique is a technique that delivers excellent details and contrast among the other techniques.