Good print quality is the result of achieving high quality for a large number of attributes including color (color gamut and reproduction accuracy), density, tonal quality (tone reproduction and details in highlight, shadow and mid-tone), gloss, line quality (width, blurriness, raggedness,), text quality, adjacency (e.g. inter-color bleed), micro-uniformity (graininess), macro-uniformity (mottl...

Se propone una aplicación novedosa de la fórmula SCTV (Spot Color Tone Value) proveniente industria reproducción gráfica, para el control calidad del proceso recubrimiento tabletas farmacéuticas. analizan dos procedimientos: uno mediante obtención los espectros reflectancia, cuales se pueden derivar atributos cromáticos, y otro a partir las coordenadas color imagen fotográfica calibrada. Nuestr...

An anchoring theory of lightness perception comprehensively explains many characteristics of human visual system such as lightness constancy and its spectacular failures which are important in the perception of images. We present a novel approach to tone mapping of high dynamic range (HDR) images which is inspired by the anchoring theory. The key concept of this method is the decomposition of a...

The human visual system differs from a camera in various aspects such as spatial resolution, brightness sensitivity, dynamic range, or color perception. Several of these effects depend on the absolute luminance distribution entering the eye which is not readily available from camera images. In this paper, we argue that absolute luminance is important for correct image reproduction. We investiga...

Continuous Line Drawing (CLD) is a drawing style where a picture consists of a single closed non-intersecting line. This paper presents an automatic algorithm for constructing CLDs, with tone and structural information obtained from input images. The connectivity of the line is maintained through a tree generated by path finding with consideration of the key features for a given image. A branch...

INTRODUCTION Vibrato is the periodic fluctuation in pitch, amplitude and/or timbre of a musical tone. It is used by singers, string players, and, in some cases, by wind instrumentalists to ornament or color a tone. Vibrato research has focused on the general characteristics of vibrato, such as its form (generally found to be sinusoidal, but mostly trapezoidal according to Horii, 1989b), its per...