Eva Knoll

Digital image resolution: what it means and how it can work for you

Image resolution can be a real headache. The image looks great on your screen but the minute it comes out of your office printer, it ends up in the garbage, or the image slows down your whole online project. What went wrong? We propose to unravel the resolution mystery so you can publish your images online, in print or on the Web painlessly. The quality of the end product depends on such things as understanding resolution and using the proper color depth. This paper sorts it all out for you so you can feel confident you are making the most of your images. Scanners, laser copies, computer monitors and professional printers measure the image resolution in different ways. What are the standards for professional-quality images? What the properties of color and how do they affect your image? We show how to use the proper color model for each type of image-printed, online or for the Web. How many colors do you need to use to keep quality up and file size down? An image file needs to be optimized for each application. Color depth is the key. All the steps needed to get a good image into your document are waiting to be revealed to you!.

Exploring Concepts from Abstract Algebra Using Variations of Generalized Woven Figure Eights.

Abstract Students often struggle with concepts from abstract algebra. Typical classes incorporate few ways to make the concepts concrete. Using a set of woven paper artifacts, this paper proposes a way to visualize and explore concepts (symmetries, groups, permutations, subgroups, etc.). The set of artifacts used to illustrate these concepts is derived from our investigation of open-work woven mats produced in several cultures in the South Pacific. The exemplars that will be shown present variations of the figure eight, and can be created using readily available materials and straightforward instructions.

Pattern Transference: Making a ‘Nova Scotia Tartan’ Bracelet Using the Peyote Stitch

The look and style of a hand-crafted object is in many cases closely connected to the specific techniques used in its creation. When designs and patterns are transferred from their traditional medium to a different one, these technical parameters can modify and sometimes even limit the results, as well as pose mathematical challenges. In this article, I examine the parameters under which the Nova Scotia tartan can be transferred into an off-loom beading technique, known as peyote stitch, gourd stitch or twill stitch, by using the concepts from tiling theory, in order to produce a piece of wearable art.

Colourwave: some variations on a mathematical schema

ABSTRACT Using colour to track paths of traveling elements in permutation algorithms can not only help visualize what is happening from a mathematical perspective, but it also produces aesthetically pleasing configurations that can be the starting point for compelling artwork. In this paper, I walk the reader through the process that produced a series of art works and point out some of their mathematical properties.

Documentary Film Review

Max Bill (1908–1994) was one of the major artists from contemporary art movements who incorporated mathematics into his work [2]. Although he is today best known for his series of sculptures depicting variations of the Moebius strip, and for his colourful proportioned compositions, his influence was much broader because he was one of the few leading figures of the Bauhaus to remain in Europe. The documentary film about his life and work is actually titled ‘Max Bill: Das Absolute Augenmass’ and although it has been released in English as ‘The Master’s Vision’ (see www.maxbillfilm.ch) it could be more freely translated as Max Bill: Absolute Visual Pitch. The film received a Special Award from the jury for the 19th Semaine de la Critique at the 2008 Locarno Film Festival.