Processing of Chest X-ray Digital Radiography Images Based on Auto Adaptive Nonlinear Stretching
Wang Zhenhu · Chinese Journal of General Practice · 2009
Objective To summarize the current processing technologies of digital radiography(DR) images,analyze the specificity of chest X-ray images,improve the drawbacks of current image processing algorithms,and introduce a novel image processing algorithm based on auto adaptive nonlinear stretching method.Methods After enhancing,balancing and denoising,the images were transformed by a LUT table of nonlinear transform,according to the statistics information of region of interesting(ROI).Results In the experiment,chest X-ray images gained from the Hologic DR detector were processed and details in the images were strengthened.Conclusion The contrast of ROI of chest X-ray images enhanced and more detail information appeared after procession of algorithm.The processed images was more convenient for doctors to make diagnosis on those processed images.