Title :
Enhancement of chest and breast radiographs by automatic spatial filtering
Author :
Tahoces, Pablo G. ; Correa, José ; Souto, Miguel ; Gonzalez, Carmen ; Gómez, Lorenzo ; Vidal, Juan J.
Author_Institution :
Dept. of Electron., Univ. of Santiago de Compostela, Spain
fDate :
9/1/1991 12:00:00 AM
Abstract :
The authors present a new algorithm to enhance the edges and contrast of chest and breast radiographs while minimally amplifying image noise. The algorithm consists of a linear combination of an original image and two smoothed images obtained from it by using different masks and parameters, followed by the application of nonlinear contrast stretching. The result is an image which retains the high median frequency local variations (edge and contrast-enhancing)
Keywords :
computerised picture processing; diagnostic radiography; medical diagnostic computing; algorithm; automatic spatial filtering; breast radiographs; chest radiographs; contrast enhancement; edge enhancement; high median frequency local variations; image noise amplification; masks; medical diagnostic imaging; nonlinear contrast stretching; parameters; smoothed images; Breast; Cancer detection; Digital filters; Filtering; Frequency; Image processing; Laboratories; Mammography; Radiography; Radiology;
Journal_Title :
Medical Imaging, IEEE Transactions on
