During viewing of natural scenes, do low-level features guide attention, and if so, does this depend on higher-level features? To answer these questions, we studied the image category dependence of low-level feature modification effects. Subjects fixated contrast-modified regions often in natural scene images, while smaller but significant effects were observed for urban scenes and faces. Surpr...

Abstract Computer vision aims to build autonomous systems that can perform some of the human visual system’s tasks (and even surpass it in many cases)among several applications Vision, extracting information from natural scene images is famous and influential. The gained an image vary identification, space measurements for navigation, or augmented reality applications. These contain relevant te...

A new general-purpose color image segmentation editor (CISE) for the purpose of extracting a semantic object is designed, implemented and tested on a number of various natural scene images. Our editor integrates a deformable model and image statistics including intensity, color, gradient and texture. The editor starts with a coarse region segmentation which applies the Canny’s operator followed...

Automated systems for understanding display boards are finding many applications useful in guiding tourists, assisting visually challenged and also in providing location aware information. Such systems require an automated method to detect and extract text prior to further image analysis. In this paper, a methodology to detect and extract text regions from low resolution natural scene images is...

Scene recognition and content-based procedures are of great interest for image indexing applications processing very large databases. Knowing the category to which a scene belongs, a retrieval system may lter out images belonging to other categories. In this paper, we introduce a computational approach which classi es and organises real-world scenes along broad semantic axes. Fundamental to our...

Humans and other primates move their eyes several times per second to foveate at different locations of a visual scene. What features of a scene guide eye movements in natural vision? We recorded eye movements of three monkeys during free exploration of natural scenes and propose a simple model to explain their dynamics. We use the spatial clustering of fixation positions to define the monkeys'...

A fundamental problem in digital photography is the estimation of scene colorimetry from raw DSC image data. Currently, a standard is under development in this area (ISO 17321-2). In the development of this standard, few subjective experiments have been carried out until now relating to the estimation of scene colorimetry from noncolorimetric raw data, where no assumptions are made concerning t...

For virtual studio TV production, multi-site video conference applications using a virtual meeting room and for synthetic/natural hybrid coding according to the forthcoming ISO/MPEG-4 standard, a synthetic and a natural scene are mixed to generate a synthetic/natural hybrid image sequence. For realism, the illumination in both scenes should be identical. In this paper, the illumination of the n...