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E-Paper Floyd-Steinberg

Instroduction

  • Floyd-Steinberg dithering algorithm is suitable to show a rich sense of gradation based on a picture that has few colors. This makes it possible to obtain more color combinations and perform better shadow rendering on the original picture, especially suitable for e-Paper display.
  • This instruction we will show you how to made Floyd-Steinberg image
  • You can also refer to the demo codes of ESP32 or ESP8266 about the realization of the Floyd-Steinberg algorithm.

How to do

  • Create a new Photoshop project, and set the resolution according to the e-Paper you use, set the color mode to RGB. For example, we use 7.5inch e-Paper whose resolution is 800*480 as example.

  • Import the image to project, adjust the image as you want

  • Select File -> Export -> Save as Web...

  • Import the color table

  • For black/white e-Paper, import Black-White.act, and save the image.

  • For black/white/red e-Paper, import Black-White-Read.act and save.

  • For black/white/yellow e-Paper, import Black-White-Yellow.act and save.

  • For Seven-colors e-Paper, import N-color.act and save.

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Raspberry Pi Pico RP2040 + ESP32 C3 double MCU chip development board with 1.14 inch LCD

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