This paper examines the work to control colour in graphic design and printing focusing on the reasons why practitioners do not implement ‘colour managed’ (CM) workflows. CM workflows should allow for successful transfer and reproduction of colour information from e.g. computer to print. However, the technical requirements – in terms of equipment ‘set-up’ and knowledge – prove to be beyond most ...

A framework for clustered-dot color halftone watermarking is considered, wherein watermark patterns are embedded in individual colorant halftones prior to printing and embedded watermarks are detected from scans of the printed images after obtaining estimates of the individual halftone separations. The principal challenge in this methodology arises in the watermark detection phase. Typical thre...

Four-dimensional models, which are 3D models with an added dimension to represent schedule information, have become an important tool in representing construction processes. These models usually rely on colors to represent the different construction states, such that when an ideal color scheme is used, engineers are able to understand the model and identify the potential problems more easily. H...

Most of the commonly used applications of watermark are referred to color or gray levels pictorial images but some new fields starts to be considered. Some research was recently done for music sheet protection considering it as b/w image [3][7][16] or considering it as result of printing from music editors [12], [13], [14]. This paper presents the theoretical difficulties to implement watermark...

A connectionist model, which simulates the operation of prefrontal circuits during Stroop task is proposed. The Stroop test has traditionally been used as a measure of cognitive inhibition. The task is to inhibit an over-learned, habitual response (i.e., reading color words) in favor of an unusual, novel requirement (i.e., naming incongruously printed colors of color words). The longer duration...

The problem of gamut mapping is of interest in achieving an optimum color reproduction whenever a translation from one device (source) to another device (destination) is requested and the source gamut differs from destination gamut. For printing applications, if the ICC profile specifications are used, gamut mapping is applied to build the color tables that characterize the printing device. Wit...

A CMYK image is often viewed as a large amount of device-dependent data ready to be printed. In several circunstances, CMYK data needs to be compressed, but the conversion to and from device-independent spaces is imprecise at best. In this paper, with the goal of compressing CMYK images, color space transformations were studied. In order to have a practical importance we developed a a new trans...

In this paper, we describe an improved method for visualization of thermographic data in the paper and pulp process industry. We present an application that allows process operators to freely choose how absolute temperatures and time varying changes of thermographic scans should be mapped to colors and/or 3D shapes. Of the possible combinations, we selected two different forms of 3D visualizati...

The stabilization of a single color tone reproduction curve (TRC) is critical for high delity color printing. A TRC controller uses a small number of actua-tors and a small number of measurements to stabilize the potentially high dimensional TRC. The overall least squares deviation of the TRC from the ideal nominal TRC is minimized in the face of the many disturbances and uncertainty in the sys...