08-09-2022, 08:32 AM
Hello PixLab, Thank you for your message and possible reasons for that "cutting line".
The original photo is 2.02 Mo. It was taken in 2015 with a Sony DSC-HX9V small camera (I have bought myself a SONY RX100 iii since...)
The vertical and horizontal resolution is 72ppp
I have done another test in GIMP on the original photo this morning. Here's all I have done:
1) shadows and highlight correction: "Shadows" from 0.00 to 100.00
2) "Radius" from 100.00 to 0.10.
And that "cutting line" is still there.
Now to be fair, trying to 5-6 stops, I agree with you is asking for trouble.
The funny thing is that when I zoom on the image, that "cutting line" looks as if the camera had been using a HDR filter which I never use when filming.
So, I will take your 2nd option: "your camera's filters/mode, firmware, lens quality".
As I am a newcomer to GIMP, I just wanted to "see for myself" how far GIMP could go, being aware it won't do miracles!
Though I must confess I am already quite impressed with what it can do!!!
I have also found out why that "cutting line" didn't appear on the black cross image when I did exactly the same test.
More than likely because the camera used for that image was a FUJI-XM1. Much better lenses than on my SONY -HX9V camera.
In any case thank you.
While I am at it, one question:
Is it very difficult (for a newcomer in GIMP not very technically minded) to replace the sky in an image by another one?
The original photo is 2.02 Mo. It was taken in 2015 with a Sony DSC-HX9V small camera (I have bought myself a SONY RX100 iii since...)
The vertical and horizontal resolution is 72ppp
I have done another test in GIMP on the original photo this morning. Here's all I have done:
1) shadows and highlight correction: "Shadows" from 0.00 to 100.00
2) "Radius" from 100.00 to 0.10.
And that "cutting line" is still there.
Now to be fair, trying to 5-6 stops, I agree with you is asking for trouble.
The funny thing is that when I zoom on the image, that "cutting line" looks as if the camera had been using a HDR filter which I never use when filming.
So, I will take your 2nd option: "your camera's filters/mode, firmware, lens quality".
As I am a newcomer to GIMP, I just wanted to "see for myself" how far GIMP could go, being aware it won't do miracles!
Though I must confess I am already quite impressed with what it can do!!!
I have also found out why that "cutting line" didn't appear on the black cross image when I did exactly the same test.
More than likely because the camera used for that image was a FUJI-XM1. Much better lenses than on my SONY -HX9V camera.
In any case thank you.
While I am at it, one question:
Is it very difficult (for a newcomer in GIMP not very technically minded) to replace the sky in an image by another one?