Abstract
Microscopy image fusion, as a new item in related research field, has been extensively used in integrated-circuit defect detection and intaglio-plate-microstructure observation. In this article, a ...
Highlights
In order to better observe the details of small objects in gravure engraving field, the micro-observation technique is usually employed to grab the high-resolution images
With the increment of image resolution, the numerical aperture becomes higher and higher. Since this value varies inversely with the depth of focus, it is hard to inspect all details of a object in one image
In order to observe the small variations of the low-frequency subbands, a novel measure based on image variance permutation entropy (VPE) is proposed to meet the requirement
Summary
In order to better observe the details of small objects in gravure engraving field, the micro-observation technique is usually employed to grab the high-resolution images. The spatial domain fusion algorithms select some features of images such as pixel,[4] block,[5] and region[6] as their final fused images. The key point of the block-based algorithms is to select some image blocks from source images by some saliency measures such as spatial frequency, contrast visibility, and edge information.
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