gistfile1.txt

import board
import busio
from time import sleep
from displayio import (
    Bitmap,
    Palette,
    Group,
    TileGrid,
    FourWire,
    release_displays,
    ColorConverter,
    Colorspace,
)

from adafruit_ov7670 import OV7670
from adafruit_bitmapsaver import save_pixels

cam_bus = busio.I2C(board.GP21, board.GP20)

cam = OV7670(
    cam_bus,
    data_pins=[
        board.GP0,
        board.GP1,
        board.GP2,
        board.GP3,
        board.GP4,
        board.GP5,
        board.GP6,
        board.GP7,
    ],
    clock=board.GP8,
    vsync=board.GP13,
    href=board.GP12,
    mclk=board.GP9,
    shutdown=board.GP15,
    reset=board.GP14,
)
cam.size = 2


bitmap = Bitmap(cam.width, cam.height, 65536)

print("width: " + str(cam.width) + "  height: " + str(cam.height))

a = cam.capture(bitmap)

sleep(0.1)

counter = 0
colors = {}

for i in range(0, cam.width):
    for j in range (0,  cam.height):
        a = bitmap[i, j]
        
        
        pixel_val = a
        pixel_val = ((pixel_val & 0x00FF)<<8) | ((25889 & 0xFF00) >> 8)
        r = (pixel_val & 0xF800)>>11
        g = (pixel_val & 0x7E0)>>5
        b = pixel_val & 0x1F
        h = (r << 16 | g << 8 | b)
        
        if h not in colors:
            colors[h] = counter
            counter += 1

print('colors', len(colors))

bitmap2 = Bitmap(cam.width, cam.height, len(colors))

for i in range(0, cam.width):
    for j in range (0,  cam.height):
        a = bitmap[i, j]
        
        pixel_val = a
        pixel_val = ((pixel_val & 0x00FF)<<8) | ((25889 & 0xFF00) >> 8)
        r = (pixel_val & 0xF800)>>11
        g = (pixel_val & 0x7E0)>>5
        b = pixel_val & 0x1F
        h = (r << 16 | g << 8 | b)
        
        bitmap2[i, j] = colors[h]
        # print("#" + str(h)[2:])

palette = Palette(len(colors))
for i, c in enumerate(colors):
    print("> ", i, hex(c))
    palette[i] = c
    
save_pixels("/out.bmp", bitmap2, palette)
print(bitmap)