using DitherPunk
using Images
using TestImages

Image Gallery

This gallery uses images from TestImages.jl.

function preprocess(img)
    img = Gray.(img)
    return imresize(img; ratio=1 / 2)
end

file_names = [
    "cameraman", "lake_gray", "house", "fabio_gray_512", "mandril_gray", "peppers_gray"
]
img = mosaic([preprocess(testimage(file)) for file in file_names]; ncol=3)

Threshold dithering

`ConstantThreshold`

dither(img, ConstantThreshold())

`WhiteNoiseThreshold`

dither(img, WhiteNoiseThreshold())

Ordered dithering

Bayer matrices

Level 1

dither(img, Bayer())

Level 2

dither(img, Bayer(2))

Level 3

dither(img, Bayer(3))

Level 4

dither(img, Bayer(4))

`ClusteredDots`

dither(img, ClusteredDots())

`CentralWhitePoint`

dither(img, CentralWhitePoint())

`BalancedCenteredPoint`

dither(img, BalancedCenteredPoint())

`Rhombus`

dither(img, Rhombus())

ImageMagick methods

dither(img, IM_checks())

dither(img, IM_h4x4a())

dither(img, IM_h6x6a())

dither(img, IM_h8x8a())

dither(img, IM_h4x4o())

dither(img, IM_h6x6o())

dither(img, IM_h8x8o())

dither(img, IM_c5x5())

dither(img, IM_c6x6())

dither(img, IM_c7x7())

Error diffusion

`SimpleErrorDiffusion`

dither(img, SimpleErrorDiffusion())

`FloydSteinberg`

dither(img, FloydSteinberg())

`JarvisJudice`

dither(img, JarvisJudice())

`Stucki`

dither(img, Stucki())

`Burkes`

dither(img, Burkes())

`Sierra`

dither(img, Sierra())

`TwoRowSierra`

dither(img, TwoRowSierra())

`SierraLite`

dither(img, SierraLite())

`Fan93()`

dither(img, Fan93())

`ShiauFan()`

dither(img, ShiauFan())

`ShiauFan2()`

dither(img, ShiauFan2())

`Atkinson()`

dither(img, Atkinson())

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