script to convert all TIFF images in the source folder into JPEG

convert_images.sh

#!/bin/bash

# Check if the user provided a folder path as an argument - otherwise use current
if [ $# -eq 1 ]; then
  source_folder="$1"
else
  source_folder="."
fi

# Check if the source folder exists
if [ ! -d "$source_folder" ]; then
  echo "Source folder not found: $source_folder"
  exit 1
fi

destination_folder="$source_folder/converted_images"

# Check if the destination folder exists; if not, create it
if [ ! -d "$destination_folder" ]; then
  mkdir -p "$destination_folder"
fi

# Create a separate folder for the processed JPEGs
processed_folder="$source_folder/processed_images"
mkdir -p "$processed_folder"

for tiff_file in "$source_folder"/*LP_A4.tif; do
  if [ -f "$tiff_file" ]; then
    base_name=$(basename "$tiff_file" .tif)

    # Convert TIFF to JPEG using convert and save it in the processed folder
    convert "$tiff_file" -colorspace sRGB "$processed_folder/$base_name.jpg"
    
    if [ -f "$processed_folder/$base_name.jpg" ]; then
    #   echo "Converted $tiff_file to JPEG in processed folder: $processed_folder/$base_name.jpg"
      printf "."
      
      # Apply ICC profile with jpgicc to the processed JPEG
      jpgicc "$processed_folder/$base_name.jpg" "$destination_folder/$base_name.jpg" > /dev/null 2>&1
      # Optimize the processed JPEG using jpegoptim
      jpegoptim --max=85 --strip-all "$destination_folder/$base_name.jpg" > /dev/null 2>&1
    else
      echo "\nConversion of $tiff_file to JPEG failed."
    fi
    
  fi
done

# Remove the processed folder
rm -rf "$processed_folder"

echo "\nConversion complete."

usage: chmod +x convert_images.sh
convert_images.sh {source_dir}

requirements:
ImageMagick for convert
LittleCMS for jpgicc
JPEGoptim

you can use homebrew to install them.