I used Painterly Rendering with Curved Brush Strokes of Multiple Sizes as my main paper to work on this project since we can simply render on a pre-existed image. Also, the paper provides nice pseudocode that can follow easier than other papers. In this paper, there are 4 painting styles, impressionist, expressionist, color wash, and pointillist. For this project, I implemented an impressionist style brush stroke on the image, littlemer.jpg. The code can be divided into three sections, such as paint, paint layer, and creating brush strokes. First, they paint the canvas with some color, black in my project. Then, for each brush with a radius in the range of {2, 4, 8}, they paint the image that is filtered with a Gaussian and gradient (emboss) filter with a circular brush. The paper randomized the order of the brush radius, so it appears to be a “freehand” painting. I implied the method that the paper suggested in this project, including applying a Gaussian and emboss filters, finding differences between the canvas and reference image by using a distance formula, color of the strokes, unit vector of a gradient, normal direction, and filter the stroke direction. The image I modified is rendered with the brush radius size of 8, 4, and 2 without randomizing the brush strokes.