MicroPython 控制ESP32_CAM摄像头常用API函数_micropython获得图像像素值

1.示例

import camera
import struct
import time
 
####分辨率范围####
# FRAME_96X96 - 96x96 像素
# FRAME_QQVGA - 160x120 像素 (QQVGA代表Quarter Quarter VGA)
# FRAME_QCIF - 176x144 像素 (QCIF代表Quarter CIF)
# FRAME_HQVGA - 240x160 像素 (HQVGA代表Half Quarter VGA)
# FRAME_240X240 - 240x240 像素
# FRAME_QVGA - 320x240 像素 (QVGA代表Quarter VGA)
# FRAME_CIF - 352x288 像素 (CIF代表Common Intermediate Format)
# FRAME_HVGA - 480x320 像素 (HVGA代表Half VGA)
# FRAME_VGA - 640x480 像素 (VGA代表Video Graphics Array)
# FRAME_SVGA - 800x600 像素 (SVGA代表Super VGA)
# FRAME_XGA - 1024x768 像素 (XGA代表Extended Graphics Array)
# FRAME_HD - 1280x720 像素 (HD代表High Definition)
# FRAME_SXGA - 1280x1024 像素 (SXGA代表Super XGA)
# FRAME_UXGA - 1600x1200 像素 (UXGA代表Ultra XGA)
# FRAME_FHD - 1920x1080 像素 (FHD代表Full High Definition)
# FRAME_P_HD - 1600x1200 像素 (P_HD代表Partial High Definition)
# FRAME_P_3MP - 2048x1536 像素 (P_3MP代表Partial 3 Megapixels)
# FRAME_QXGA - 2048x1536 像素 (QXGA代表Quad Extended Graphics Array)
# FRAME_QHD - 2560x1440 像素 (QHD代表Quad High Definition)
# FRAME_WQXGA - 2560x1600 像素 (WQXGA代表Wide Quad Extended Graphics Array)
# FRAME_P_FHD - 2560x1600 像素 (P_FHD代表Partial Full High Definition)
# FRAME_QSXGA - 2560x2048 像素 (QSXGA代表Quad Super XGA)
 
if __name__ != '_main_':
    try:
        camera.init(0, format=camera.JPEG,framesize=camera.FRAME_XGA)
    except Exception as e:
        camera.deinit()
        camera.init(0, format=camera.JPEG,framesize=camera.FRAME_XGA)
    time.sleep_ms(500)
    ## Other settings:
    # flip up side down
    camera.flip(1)
    # left / right
    camera.mirror(1)
    time.sleep_ms(200)
    # framesize
    #camera.framesize(camera.FRAME_240X240)
    # The options are the following:
    # FRAME_96X96 FRAME_QQVGA FRAME_QCIF FRAME_HQVGA FRAME_240X240
    # FRAME_QVGA FRAME_CIF FRAME_HVGA FRAME_VGA FRAME_SVGA
    # FRAME_XGA FRAME_HD FRAME_SXGA FRAME_UXGA FRAME_FHD
    # FRAME_P_HD FRAME_P_3MP FRAME_QXGA FRAME_QHD FRAME_WQXGA
    # FRAME_P_FHD FRAME_QSXGA
    # Check this link for more information: https://bit.ly/2YOzizz
     
    # special effects
    camera.speffect(camera.EFFECT_NONE)
    # The options are the following:
    # EFFECT_NONE (default) EFFECT_NEG EFFECT_BW EFFECT_RED EFFECT_GREEN EFFECT_BLUE EFFECT_RETRO
     
    # white balance
    camera.whitebalance(camera.WB_NONE)
    # The options are the following:
    # WB_NONE (default) WB_SUNNY WB_CLOUDY WB_OFFICE WB_HOME
     
    # saturation
    camera.saturation(0)
    # -2,2 (default 0). -2 grayscale 
     
    # brightness
    camera.brightness(0)
    # -2,2 (default 0). 2 brightness
     
    # contrast
    camera.contrast(0)
    #-2,2 (default 0). 2 highcontrast
     
    # quality
    camera.quality(10)
    # 10-63 lower number means higher quality
 
    print("摄像头初始化完成。")
    
# 获取图像数据流示例    
# buffer = camera.capture() #图像数据

2.常用API函数

以下是摄像头控制的一些常见 API 函数、中文名称和使用方式的简要列表：

        这只是一些常见的摄像头控制 API 函数示例，实际的摄像头库可能具有更多其他功能和选项。确保查阅摄像头库的官方文档以获取更详细的信息和使用方式。