Displaying Images in Tableau (with some help from Python)
One of the cool things you can do with Tableau is define every pixel from an image. This allows you to create interesting visualizations as described below. Before we get started, let’s first understand some fundamental concepts about digital images. DIGITAL IMAGE A digital image is a matrix made out of pixels (the smallest element on a screen). In the figure below we present an image of fruits and vegetables. It can be observed that when we zoom into a portion of the image
Drawing with Straight Lines
What if we could only draw straight lines on a canvas? Could we be able to create art under such a constraint? A few weeks ago, I came across a very talented artist, Petros Vrellis, who created interesting art pieces by only using straight lines. Several others have tried to recreate this type of work, such as Christian Siegel and Shlonkin. I have been curious about understanding the underlying dynamics that work with this constraint. Therefore, in this post I implement an al
