This book describes a curvature-based corner detector that detects both fine and coarse features accurately at low computational cost. First, it extracts contours from a Canny edge map. Second, it computes the absolute value of curvature of each point on a contour at a low scale and regards local maxima of absolute curvature as initial corner candidates. Third, it uses an adaptive curvature threshold to remove round corners from the initial list. Finally, false corners due to quantization noise and trivial details are eliminated by evaluating the angles of corner candidates in a dynamic region of support. This book proposes a method to extract the feature points from faces automatically. It provides a feasible way to locate the positions of two eyeballs, near and far corners of eyes, midpoint of nostrils and mouth corners from face image. This approach would help to extract useful features on human face automatically and improve the accuracy of face recognition. The experiments show that the method presented in this paper could locate feature points from faces exactly and quickly and the goal of this book is to compare and finding error of images of twins(identical & non-identical)

Surface morphology and physicochemical properties induced to capillary uptake of liquids. Topography shows the surface characteristics which induced to roughness. Roughness influences the wettability and cleanability. Plasma modification (Oxygen and Ammonia) tends to play an important role in wettability of PET fabric. Wetting phenomena i.e. spreading rate, absorption rate and static contact angles are observed to indicate the intensity of hydrophilicity and hydrophobicity, before and after modification. Thermofixing modify the amplitude and porosity of yarn and that leads to change in surface topography e.g. roughness, weaviness, relaxation, shrinkage, pilling factor etc., which is observed very clearly. Different heat-set PET fabric show different characters after applying Plasma and Soil Release Polymer (SRP) in wetting behavior and cleanability, were observed and determined. In this thesis, topography of origin and different thermofixed PET fabric, before and after SRP was studied. Correlation of wettability, different topography and cleanability were revealed and discussed.