Multi-focus image fusion dataset and algorithm test in real environment

With the continuous development of the imaging technology, the smartphone photography is more and more recognized by people. [...]it is necessary to try to construct a real-environment dataset by using different smartphones. The ghosting at the image edges is mainly due to the misregistration of the images in the dataset, while the blocking and distortion in the images are due to the inconsistency of the brightness between the two source images in the dataset. [...]we conduct image cropping, standardization of basic attributes and registration processing on the dataset to ameliorate the quality of the fused images. When the image background information is clear, the field of view is wider, and when the image near field information is clear, the view is narrower. [...]if two images with different focal points have the same size, the field of view of the two images will be different, and the ghosting will appear during the fusion process. [...]the source image and target image are transformed from RGB space to HSV space.