| 摘要 |
A method of improving images is provided. A body of image data is collected and signal to noise (SNR) values thereof are determined. The collected data is converted into an electronic image representation X. Image X comprises a first array of pixel intensity values. Further, a low pass filtered image representation F comprising a second array of pixel intensity values is obtained. An improved electronic image representation P comprising a third array of pixel intensity values is generated by replacing each pixel intensity value of electronic image representation X by a linear combination of the replaced pixel intensity value from image X and the corresponding pixel intensity value from image F. An array of linear combination coefficients alpha, (1-alpha) determine the relative contributions of the replaced X pixel intensity value and the value of the corresponding pixel intensity from image F, respectively. The values of linear combination coefficients array alpha are determined with respect to statistical image quality metrics, in particular with respect to signal-to-noise (SNR) ratio. |
