This method will do the import of multiple images at once. The important concept to note is this method will convert the image file to string using base64
Extract attached file bulk_image_upload.zip as example
Prepare image files, name with no space.
Prepare ProductPic.csv –> name and filename
Run command which will result in ProductPic.csv.result.csv
> ./MakeBase64CSV.sh ProductPic.csv
Use ProductPic.csv.result.csv to upload data. bulk_image_upload.zip