Filters support

[jaymecd]

Have you considered to add filters support?

At least sharpen would make sense, as proxied image with reduced dimension is always blurry due to the compression algorithm.

[oldcai]

Have you got some samples show sharpen can help with quality lost images?

[jaymecd]

Sure.
Origin image - http://st.motortrend.com/uploads/sites/5/2015/05/2015-Large-Luxury-SUV-front-three-quarter.jpg

$ file 2015-Large-Luxury-SUV-front-three-quarter.jpg
2015-Large-Luxury-SUV-front-three-quarter.jpg: JPEG image data, Exif standard: [TIFF image data, little-endian, direntries=0], baseline, precision 8, 2048x1360, frames 3

Processed image with:

        resize := "fill"
        width := 300
        height := 300
        gravity := "no"
        enlarge := 1
        extension := "jpg"

$ file imgproxied.jpg
imgproxied.jpg: JPEG image data, baseline, precision 8, 300x300, frames 3

As you might see, Infinity SUV is blurred as other ones.
Hope that helps.

[DarthSim]

🎉 imgproxy v2.0 has been released 🎉 Take a look at the new features, including sharpening and blur filters: https://github.com/DarthSim/imgproxy/blob/master/CHANGELOG.md#v200