Publications by Duong Tran
3D Attractors v0.01
Shiny Application These images are what is known as “strange-attractors”, or more precise; the “Lorenz” attractor in this case. There are others, in both 2 and 3D. Typically their aesthetically striking images are the results of well know sets of parameters values; although a slight variation or plotting (viewed) from a different angle ca...
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Contour Texture Generator v0.01
Shiny Application This series of images were generated ‘randomly’ by plotting contour lines. The function for the tessellation came from the contouR package and ggplot did the plotting. With different colours and densities the generated random textures can look ‘attractive’. Attached are some samples. Sample 1 Sample 2 ...
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Packed Circles Diagram Generator v0.01
Shiny Application My previous post was on Voronoi diagrams; this time the shiny application generates random Packed-Circles diagrams. There are packages and algorithms for this and by applying them with ggplot, colours, sizes and shapes etc; like Voronoi diagrams produce attractive images. Attach are some samples. Sample 1 Sample 2 These were c...
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Texture Image Generator
Shiny Application This shiny application generates random texture images using ggplot2. R provides 25 plotting shapes and plotting these with various attributes; shape, size, colour, density and transparency can surprisingly produce pleasing images aesthetically. Below is a sample. Note: beside the 25 shapes you can also explore unicodes!! Sampl...
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Convert PDF to PNG/JPEG v0.01
Introduction This application converts a selected page of a PDF file to either PNG or JPEG formats with dpi (quality) and trimming options. Often trimming to remove the edges’ white spaces is desirable, before importing into another document for example. Further Extensions Cropping and re-sizing options are possibilities of additions. Also all...
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Optical Character Recognition (OCR)
Introduction Tesseract is an Optical Character Recognition (OCR) engine; a technology where image text can be converted into plain text. This post introduces OCR via a simple Shiny application. Shiny Application This application allows a selected PNG, JPEG, TIFF or PDF file for conversion to plain text. The result can then be highlighted, copy a...
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Kandinsky Art v0.01
Shiny Application This shiny application generates random Kandinsky PNG images from the kandinsky R package, either in colour or grayscale. There is also an option to save the images in an animated GIF file. Sample Images More images in an animated GIF file ...
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Flame-Tree Art v0.01
Shiny Application This shiny application uses the flametree package that can generate flametree images in various styles. Namely, plain, voronoi, wisp, nativeflora and minimal. In addition you can choose the background colour, select the number of trees and split branches etc. Samples in Different Styles Style: plain Style: voronoi Style: wi...
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Voronoi Diagram Generator v0.01
Shiny Application This shiny application generates random Voronoi diagrams and there are a number of R packages with this functionality. These diagrams, on their own, are already visually attractive but they are also great for backgrounds and complement other images. Below are some samples. Sample 1 Sample 2 These were created with some manual ...
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Heatmap Correlation Matrix
This Heatmap Correlation Matrix display was produced via SAS PROC REPORT where each cell was set to a colour based on its p-value. Note the first proc report call produce the table, the second the description section. ...
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