Multi-focus Color Image Fusion Based on SWT and IHS

The objective of image fusion is to combine information from multiple images of the same scene to form one composite image that contains a more accurate description of the scene than any one of the individual source images. A multi-focus color image fusion method is proposed in this paper. This method is implemented to perform Intensity-Hue-Saturation (IHS) transform on multi-focus color images to get intensity (I) components, and get wavelet coefficients by taking Stationary Wavelet Transform (SWT) on I components as basis of calculation of activity level of each pixel, then according to the activity level to form a fused image by a selection mode. Experimental results indicate that the proposed method outperforms the traditional approaches.