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Code Issues Releases Activity

use linear thumb resample filter

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This commit is contained in:
Gani Georgiev 2023-12-03 20:56:14 +02:00
parent 04024cb6b7
commit f57d38f529
2 changed files with 8 additions and 5 deletions
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2
CHANGELOG.md
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@ -53,6 +53,8 @@
- Added a default red colored Stderr output for the commands errors.
You can now also silence individually custom commands errors using the `cobra.Command.SilenceErrors` field.
- Slightly speed up (~10%) the thumbs generation by changing from cubic (`CatmullRom`) to bilinear (`Linear`) resampling filter (_the quality difference is very little_).
## v0.20.0-rc3

11
tools/filesystem/filesystem.go
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@ -425,25 +425,26 @@ func (s *System) CreateThumb(originalKey string, thumbKey, thumbSize string) err
return decodeErr
}
r.Close()
var thumbImg *image.NRGBA
if width == 0 || height == 0 {
// force resize preserving aspect ratio
thumbImg = imaging.Resize(img, width, height, imaging.CatmullRom)
thumbImg = imaging.Resize(img, width, height, imaging.Linear)
} else {
switch resizeType {
case "f":
// fit
thumbImg = imaging.Fit(img, width, height, imaging.CatmullRom)
thumbImg = imaging.Fit(img, width, height, imaging.Linear)
case "t":
// fill and crop from top
thumbImg = imaging.Fill(img, width, height, imaging.Top, imaging.CatmullRom)
thumbImg = imaging.Fill(img, width, height, imaging.Top, imaging.Linear)
case "b":
// fill and crop from bottom
thumbImg = imaging.Fill(img, width, height, imaging.Bottom, imaging.CatmullRom)
thumbImg = imaging.Fill(img, width, height, imaging.Bottom, imaging.Linear)
default:
// fill and crop from center
thumbImg = imaging.Fill(img, width, height, imaging.Center, imaging.CatmullRom)
thumbImg = imaging.Fill(img, width, height, imaging.Center, imaging.Linear)
}
}