Resize & Convert image -> webp

resize_convert.sh

#!/bin/bash

# Usage: 
# ./resize_and_convert.sh ~/Desktop/folder-with-images

# Check if the correct number of arguments is provided
if [ "$#" -ne 1 ]; then
  echo "Usage: $0 source_path"
  exit 1
fi

# Source directory from the terminal argument
INPUT_DIR="$1"
OUTPUT_DIR="${INPUT_DIR%/}-resized"

# Create the output directory if it doesn't exist
mkdir -p "$OUTPUT_DIR"

# Iterate over each image in the input directory
for image in "$INPUT_DIR"/*; do
  # Get the filename without the extension
  filename=$(basename -- "$image")
  filename="${filename%.*}"

  # Get the current width of the image
  original_width=$(sips -g pixelWidth "$image" | awk '/pixelWidth/ {print $2}')
  # Calculate the new width as 50% of the original width
  new_width=$((original_width / 2))

  # Resize the image to 50%
  sips --resampleWidth "$new_width" "$image" --out "$OUTPUT_DIR/${filename}.png"

  # Convert the resized image to WebP format
  cwebp "$OUTPUT_DIR/${filename}.png" -o "$OUTPUT_DIR/${filename}.webp"

  # Remove the intermediate resized PNG file
  rm "$OUTPUT_DIR/${filename}.png"
done

echo "Conversion complete. Resized images saved to $OUTPUT_DIR"