Question How to compress photos before uploading to cloud

[wwwampy]

I'd like to compress photos before uploading them to my C2 backup cloud, just like Google Photos do. Or I think they resize them.

That way it will take up less space, but photos are still ok to look at.

Or is it not a good idea to do that?

 

[fredbert]

Unless you are using RAW, TIFF or similar formats then all other image formats already have significant compression.

JPEG and PNG will be compressed already. The only way to remove a lot of size is to make the images smaller, i.e. pixel x by pixel y, But then you'll affect the original quality.

Similar effect is digital 'zoom'. The photo-receptive chip is a fixed pixel x/y array and each pixel is a fixed size. The light hitting the array is what will make the image. A digital zoom will take part of the array and make that the captured image and state it as a zoomed in image. If you capture at 'non-digital-zoomed' you will then be able to edit the image afterwards to create a smaller image but set the DPI to infer a bigger image at lower quality.

One thing I noticed with C2 backup is that it noticed the same file (image) being uploaded twice in different folders. The upload time was reduced (I have a low upload speed so it was very noticeable that the second upload didn't happen) but the storage space was accounted for both uploads.

 

[jeyare]

up to your future photo usage. Each compression will degrade your original photo quality. If the photo comes from smartphone and not from APS-C or full frame, then doesn’t mater, just do it.
By default, “compressed” means that some of the data in the photo is thrown away.

 

[wwwampy]

Thank you both. Understand and I'll better just leave how it is, but how Google is doing it in Photos?

 

[jeyare]

I don’t know how all 3rd party services like Google Photos handle user photos, because, I’m also paranoid. My photos, my property. I don’t use FB, Insta, Twitter or all rest SN channels. Still alive and happy.

 

[wwwampy]

Ok, I was just wondering so I can do similar for photos on my NAS.

 

[jeyare]

It is Ok, keep your secret for your own life, cheers