THE MORPHOLOGICAL RANK ORDER GRAY-SCALE EROSION AND ITS OPTICAL IMPLEMENTATION

In this paper, based on the study of the thresholding method of the mo rphological rank order hit-miss transform (ROHMT), we propose a one-ch annel hit-miss transform and develope a rank order grayscale erosion t o implement the ROHMT and its extension. Compared with the conventiona l complement encoded hit-miss transform (HMT), we use only the origina l image and a combined structuring element (SE). Based on this impleme nting scheme, the HMT-based morphological processing systems can be gr eatly simplified. Optical implementing schemes for the rank order gray scale erosion are discussed. A proof-of-principle experiment is conduc ted and the experiment result is also given.