This is a Go image processing library that perfectly recreates the Pokémon Contest painting effects found in Pokémon Emerald, Ruby, and Sapphire. The code is directly ported from the pokeemerald project.
Examples:
The full dump of all possible Pokémon Contest Painting images can be downloaded here: https://www.mediafire.com/file/y59hxgd4thtk6z3/contest-painting-pokemon.zip/file
A full working example of using this library is found below. It processes the given image with the "Smart Contest" effect.
package main
import (
"fmt"
"image"
"image/png"
_ "image/png"
"log"
"os"
contestpaintingeffects "github.com/huderlem/contest-painting-effects"
"github.com/huderlem/contest-painting-effects/canvas"
)
func loadImage() (image.Image, error) {
imageFile, err := os.Open("dusclops.png")
if err != nil {
return nil, fmt.Errorf("Error opening input image file: %s", err.Error())
}
defer imageFile.Close()
imageData, _, err := image.Decode(imageFile)
if err != nil {
return nil, fmt.Errorf("Error decoding image file: %s", err.Error())
}
return imageData, nil
}
func saveImage(img image.Image) error {
outputFile, err := os.Create("output.png")
if err != nil {
return fmt.Errorf("Error saving image: %s", err.Error())
}
defer outputFile.Close()
png.Encode(outputFile, img)
return nil
}
func main() {
imageData, err := loadImage()
if err != nil {
log.Fatalf(err.Error())
}
c := canvas.FromImage(imageData)
palette := contestpaintingeffects.ApplySmartEffect(c)
saveImage(c.ToImage(palette))
}