DITHRA

Let's Dithering!

Dithraは、リアルタイムカメラディザーフィルターアプリケーションです。
カメラで撮影した写真・動画に、レトロなピクセルアート風のディザー効果をリアルタイムで適用できます。

ゲームボーイ風のモノクロディザーや、カラフルなRGBディザーなど、9種類のアルゴリズムと豊富なカラーモードを搭載しています。

•	10 Dithering Algorithms Floyd-Steinberg, Atkinson, Burkes, Bayer 2x2/4x4/8x8, Vertical Line, Horizontal Line, Threshold, Sobel Edge
•	Color Modes Grayscale (1-bit, 2-bit), RGB (1-6 bit / 8-262,144 colors)
•	Adjustments Brightness, Contrast, Pixelation (1x-16x), Invert
•	Palettes Black & White, Game Boy, Game Boy Pocket, Game Boy Color, Candy, Custom
•	Camera Photo/Video capture, Front/Rear camera, Zoom (x0.5, x1, x2, x4), Flash/Torch
•	Library In-app save, Export to Camera Roll, Re-editable, Import from Photos

Dithering Algorithms (10 types)

Error Diffusion

1. Floyd-Steinberg - Most common dithering. High quality, natural results
2. Atkinson - Algorithm used in Macintosh. Enhanced contrast, comic style
3. Burkes - Improved Floyd-Steinberg. Clearer and sharper results

Ordered Dither

4. Bayer 2x2 - Simplest and fastest. 2x2 matrix
5. Bayer 4x4 - Balanced quality. 4x4 matrix
6. Bayer 8x8 - High definition, smooth results. 8x8 matrix

Line Dither

7. Vertical Line - Vertical stripe pattern
8. Horizontal Line - Horizontal stripe pattern

Threshold

9. Threshold - Simple thresholding. Fastest

Edge Detection

10. Sobel Edge - Sketch style effect through edge detection

Presets (13 types)

Retro Game Style

1. Kyoto - Game Boy style (DMG 4-tone, Atkinson)
2. KyotoF - NES/Famicom style (RGB 2-bit, Threshold)
3. KyotoC - Game Boy Color style (RGB 5-bit, Floyd-Steinberg)
4. Tokyo98 - PC-9801 style (RGB 4-bit, Bayer 4x4) ★Default
5. Hamburg - Amiga style (RGB 4-bit, Floyd-Steinberg)
6. LA - Sega Mega Drive style (RGB 3-bit, Threshold)
7. Kobe - Neo Geo style (RGB 5-bit, Threshold)
8. Boston - Commodore 64 style (RGB 1-bit, Bayer 2x2)

Computer Style

9. VGA - VGA Mode 13h style (RGB 6-bit, Floyd-Steinberg)
10. Cupertino - Macintosh style (1-bit, Atkinson)

Edge Style

11. Sketch - Sketch style (Sobel Edge, 2-bit)
12. Comic Edge - Comic style (Sobel Edge, RGB 2-bit)
13. Neon Edge - Neon style (Sobel Edge, 1-bit)

• Apple社iPhone, iOS26以上対応

Leo Kuroshita | @kurogedelic

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