Gladiolus (Gladiolus grandiflorus L.), a popular and economically profitable bulbous cut flower, has high demand in both Pakistan domestic and international markets on account of its attractive spikes, florets of huge forms, dazzling colors, varying sizes, and long vase life. However, its quality production is badly affected by non-uniform sprouting, poor crop stand, and old cultivars. To overc...

When two images, one depicting colored disks and the other depicting colored windmill patterns, are displayed in succession, the color of the windmills is perceptually replaced by black. The illusion is striking. Experiments confirmed (1) that the luminance contrast between the target patterns and the background must be large and (2) that the disks and windmills must be static on the retina and...

This article explores the correspondences and differences in terms of color design between two screen versions Black Narcissus, a popular novel by Rumer Godden published 1939. Conceptual approaches drawn upon include ideas “the figural,” intertextuality hybridity as central to understanding how Narcissus operates on many complex levels, arguing that is key expressive mode their articulation. Po...

Human performance on color discrimination in visual display terminals may be affected by illuminant colors, the level of ambient illumination and background colors of the monitor. Few studies have focused on this topic. This study investigated human color discrimination ability in a simulated control room. Ten subjects were recruited as participants to perform a series of experimental tasks. A ...

Although methods exist for predicting the color of a spot color ink when it overprints another ink, there is a need for a simplified model for the purpose of previewing that can be used during document creations. The proposed model characterizes each spot color individually and predicts the color of overprinting solids and halftones by linearly combining the reflectances of two colors. Each ink...

This tutorial examines how people of various cultures classify different colors as belonging together under common color names. This is addressed by examining Berlin and Kay’s (1969) hierarchical classification scheme. Special attention is paid to the additional five (derived) color terms (i.e., brown, purple, pink, orange, and gray) that must be added to Herings’ six primaries (i.e., white, bl...

this article is an attempt to investigate the aesthetics of color themes in arabic poetry. as a means of psychological description, color is one of the manifestations of realism in poetic images. in the application of colors some mythical and civilized structures are portrayed in the culture of nations. since languages have their own specific organizations of colors, the author aims to measure ...

Introduction The transformation of a digital image from a three-dimensional color space, such as RGB, XYZ, L*u*v*, etc., to four-dimensional colorant space (typically cyan, magenta, yellow, and black) is in general underdetermined. (The reasons for the addition of a black colorant are detailed in Yule. [1]) We therefore have a degree of freedom for colors within the three-colorant gamut; withou...