imageconverter/img2array.py

@@ -3,9 +3,6 @@ import math
 import argparse
 import os.path
 
-#for a 2-bit dithered grayscale image use: 
-# convert testimage.png -dither FloydSteinberg -define dither:diffusion-amount=85% -remap 4gray.png -compress RLE -define png:color-type=6 output.png
-
 
 def swapBits(number, nbits):
     if nbits==2:

src/main.cpp

@@ -1,22 +1,6 @@
 // Library, connections and info from: https://www.waveshare.com/wiki/E-Paper_ESP32_Driver_Board#Resource
 // Display: https://www.waveshare.com/product/4.2inch-e-paper.htm
 
-
-//Convert to 1 bit grayscale:
-//maybe dither before
-// convert image to array:
-// python3 img2array.py -i image.png
-
-//Convert to 2 bit grayscale dithered:
-// first convert image to dithered 2 bit image: 
-// convert testimage.png -dither FloydSteinberg -define dither:diffusion-amount=85% -remap 4gray.png -compress RLE -define png:color-type=6 output.png
-
-// then image to array: 
-// python3 img2array.py --bitdepth 2 --lsbfirst --colorlsbfirst testimage.png
-
-// then copy generated ...png.txt content to ImageData.cpp
-
-
 /* Includes ------------------------------------------------------------------*/
 #include "DEV_Config.h"
 #include "EPD.h"
@@ -54,7 +38,7 @@ void setup()
     printf("show image for array\r\n");
     Paint_SelectImage(BWImage);
     Paint_Clear(WHITE);
-    Paint_DrawBitMap(gImage_4in2);
+    Paint_DrawBitMap(gImage_4in2);  //to convert image use: python3 img2array.py -i image.png
     EPD_4IN2_Display(BWImage);
     
     free(BWImage);
@@ -80,7 +64,7 @@ void setup()
     Paint_SelectImage(GSImage);
     Paint_SetScale(4);
 
-    Paint_DrawBitMap(gImage_4in2);  
+    Paint_DrawBitMap(gImage_4in2);
     EPD_4IN2_4GrayDisplay(GSImage);
 
     DEV_Delay_ms(10000);