Converting PNG to SVG in Golang using Potrace and Convert Tool

Siva
3 min readApr 16, 2023

Converting a PNG image to an SVG file using Potrace is a common task in image processing. Potrace is a free and open-source tool for converting bitmap images to vector graphics. In this blog, we will see how to use Convert and Potrace to convert a PNG file to SVG format in Golang.

Prerequisites:

  • Golang installed on your system
  • Potrace installed on your system
  • ImageMagick installed on your system
sudo apt-get install potrace imagemagick

Step 1: Import Required Packages First, we need to import the necessary packages for our program. We will use the os/exec package to execute the Potrace command in our program.

package main

import (
"os"
"os/exec"
)

Step 2: Define Input and Output Paths Next, we need to define the input PNG file path and the output SVG file path. In this example, we will use the file paths "input.png" and "output.svg", respectively.

func main() {
// Input and output file paths
pngPath := "./input.png"
bmpPath := "./input.bmp"
svgPath := "./output.svg"
...
}

Step 3: Execute Potrace Command Now, we can execute the Potrace command using the os/exec package. We need to create a new exec.Cmd variable and pass the Potrace command and arguments as its arguments. In this example, we will use the following command to convert the PNG file to BMP…

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