What is a better way to store images-database or file system?

What is better for search engines and if you have images in one or the other can you switch without re uploading images

I’m in favour of File System,

Mainly since I can move the database at 2Mb compared to 1Gb with images included. If the image is leeched it also has to run through the database first so it eats a bit of database activity that you’ld best be left to generate pages with.

1.3.4 or .5 do you still have to generate pages or can you just create a product page, the reason is on my images when I generate in gives the images a scrambled text and number verses if I leave alone it does not and will it still rank or be picked up