Script to save all open tabs as jpg

I have a batch of scanned photos from an album to perform auto crop & straighten on. I want to automate the process, creating an script that saves all created new images (in tabs) as JPEGs from ( auto crop & straighten ) ater I finish my edits to croped photos to an output directory . Basically, I have tried a way that is :

After crop & straighten , use "close all" and click save when asked for each image , and then specify the folder and JPEG settings for each image. Problem here is, the action then becomes specific for how many pictures there have been created out of a single scan file, and this number may vary .

Thanks