求一个能拍照并储存成图片的代码，例程里只有储存成RBG和YUV格式的，找了好多都只有k210的代码没有k230适用的，下面是官方的例程

你好，k230拍照保存成图片需要先将图片格式转换为rgb565，然后可以保存成jpeg bmp或者png

可是例程里面只有RGB888的格式，我不知道怎么转换格式

import time, os, sys

from media.sensor import *
from media.display import *
from media.media import *

# save image raw data, use 7yuv to preview

try:
    print("camera_test")
    # construct a Sensor object with default configure
    sensor = Sensor()
    # sensor reset
    sensor.reset()

    # set chn0 output size, 1920x1080
    sensor.set_framesize(Sensor.FHD)
    # set chn0 output format
    sensor.set_pixformat(Sensor.YUV420SP)
    # bind sensor chn0 to display layer video 1
    bind_info = sensor.bind_info()
    Display.bind_layer(**bind_info, layer = Display.LAYER_VIDEO1)

    # set chn1 output format
    sensor.set_framesize(width = 640, height = 480, chn = CAM_CHN_ID_1)
    sensor.set_pixformat(Sensor.RGB565, chn = CAM_CHN_ID_1)


    # use hdmi as display output
    Display.init(Display.LT9611, to_ide = True)
    # init media manager
    MediaManager.init()
    # sensor start run
    sensor.run()

    # drop 100 frames
    for i in range(100):
        sensor.snapshot()

    img = sensor.snapshot(chn = CAM_CHN_ID_1)
    img.save("/sdcard/test.jpg")

    
except KeyboardInterrupt as e:
    print(f"user stop")
except BaseException as e:
    print(f"Exception '{e}'")
finally:
    # sensor stop run
    if isinstance(sensor, Sensor):
        sensor.stop()
    # deinit display
    Display.deinit()

    os.exitpoint(os.EXITPOINT_ENABLE_SLEEP)
    time.sleep_ms(100)

    # release media buffer
    MediaManager.deinit()

试一下这个，RGB565的应该是可以保存的，烧录1.1的固件。