An Identity based cryptography based on visual cryptography scheme was proposed for protecting color image. A color image to be protected and authentic entities such as account number, password, signature image are given as input. The binary key image is obtained by distributing the digital signature of obtained authentic entities. A secret color image which needs to be communicated is decompos...

We introduce and provide the first example of a transitive digital signature scheme. Informally, this is a way to digitally sign vertices and edges of a dynamically growing, transitively closed, graph G so as to guarantee the following properties: – Given the signatures of edges (u, v) and (v, w), anyone can easily derive the digital signature of the edge (u,w). – It is computationaly hard for ...

In this study, a robust methodology for the detection of buildings from a single color aerial image is proposed. The methodology is initialized with the mean-shift segmentation algorithm. Next, a vector-valued canny edge detection algorithm which relies on the photometric quasi-invariant gradients is utilized to detect edges from the color segmented image. Morphological operations are applied t...

Images are analyzed with edge and color values. Pixel information is used in the color property extraction. Texture and contrast are pixel based features. Shape or edge features are used to represent images. The images are assigned with their category values. The image features are used in the classification process. Classification techniques are used to assign labels to the images. Color const...

Motivated by investigations of rainbow matchings in edge colored graphs, we introduce the notion of color-line graphs that generalizes the classical concept of line graphs in a natural way. Let H be a (properly) edge-colored graph. The (proper) color-line graph CL(H) of H has edges of H as vertices, and two edges of H are adjacent in CL(H) if they are incident in H or have the same color. We gi...

The inclusive cross section for the production of J/ψ in e+e− annihilation is studied using a recently developed factorization formalism. In addition to the conventional color-singlet contribution, we include contributions from cc̄ pairs that are produced at short distances in color-octet states. The color-octet contributions are suppressed by the smaller probability for the color-octet cc̄ pair ...

This paper proposes a method, combining color and layout features, for identifying documents captured from lowresolution handheld devices. On one hand, the document image color density surface is estimated and represented with an equivalent ellipse and on the other hand, the document shallow layout structure is computed and hierarchically represented. Our identification method first uses the co...

A novel boundary detection scheme based on “edge flow” is proposed in this paper. This scheme utilizes a predictive coding model to identify the direction of change in color and texture at each image location at a given scale, and constructs an edge flow vector. By iteratively propagating the edge flow, the boundaries can be detected at image locations which encounter two opposite directions of...

A fast, color-based algorithm for unknown illuminant is presented. of the object's color distribution R, G and B denote the 3 color 1: recognizing objects and textures viewed under an Objects are indexed by six numbers: the angles and the angles of the color edge distributions. If )ands of the image of an object (stretched out as vectors) then the color angular index comprises the 3 inter-band ...

This paper presents a review on edge-preserving decomposition based image haze removal. When the background has dust particles or hazes its image quality and color is degraded. It is well-known that local filtering-based edge preserving smoothing method suffers from halo artifacts. In this paper a survey of many different methods for haze removal just like Laplacian-based visibility restoration...