Hugo: JPG image resize processing result looks bad
Tried using the inbuilt image resize processing but the results look poor to me. The following images were resized from 1200 pixels wide to 1250 with quality set to 100 to remove that as a factor. I used hugo and gimp to compare the images.
Resized in Hugo:
Resized in gimp:
What is Hugo using to do the image resizing? Using v0.59.1.
maxwedwards
All 4 comments
Jagged edges appear on images that are both reduced in size and increased in size.
maxwedwards
on 13 Jan 2020
Looking at the code it looks like github.com/disintegration/gift, that correct?
maxwedwards
on 13 Jan 2020
It's gift, yes. You may want to try some other resample filter, I suspect the default was chosen for speed and not quality: https://gohugo.io/content-management/image-processing/#resample-filter
bep
on 13 Jan 2020
RTFM!
For this image, Guassian and Linear both look great and Box and NearestNeighbor look bad.
I checked in GIMP and interpolation was set to "Cubic" which sounds box like to a layman.
Thanks @bep!
maxwedwards
on 13 Jan 2020
Related issues
vielmetti
路
3Comments
antifuchs
路
3Comments
digitalcraftsman
路
3Comments
carandraug
路
3Comments
VoidingWarranties
路
3Comments
Most helpful comment
It's gift, yes. You may want to try some other resample filter, I suspect the default was chosen for speed and not quality: https://gohugo.io/content-management/image-processing/#resample-filter