Batch processing of photos on post-editing

[Stephen Liu]

(05-23-2022, 05:07 PM)rich2005 Wrote:

Quote:What I expect to know is how to enhance the quality of the positive image on GIMP?
There are so many options HUE, Brightness, Color Balance, Color Temperature etc. What will be the steps?  Which of the option should be edited first?

See: I do not have to quote everything.

These are monochrome negatives that you have inverted leaving a monochrome positive as the street scene in your previous post. So Hue, Color Balance / Temperature etc are not relevant.
You want to use Gimp, that is what this forum is about.  Each image should really be considered in isolation and adjusted accordingly. One way is use the Color Curves tool.
...but you also want a batch process and that is not compatible with individual adjustment.

Best you will get for your specification is ;
Use the Color Curve on a typical image
Save the curve to a file
Use the curve in BIMP to apply to all the images.

Thanks for your advice.

I'll start again, scanning a new set of color film negatives for testing.

I'll use Smartphone scanning without scan software installed.  Then I'll download them to computer and run
$ mogrify -negate *.*

converting them to positive_images and run XnConvert to post-edit them in batch.  I'll came back later.

The reason for me to edit an image on GIMP is to find a set of value re brightness/contrast/hue/color/sharpness etc. Which step should go first and their arrangement. Then use those values and steps to apply batch post-editing.  

Regards