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[参考译文] AM62A7:曝光值不准确

Guru**** 2535750 points
Other Parts Discussed in Thread: AM62A7

请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1563916/am62a7-exposure-value-is-inaccurate

器件型号:AM62A7


工具/软件:

尊敬的 TI 专家:

最小曝光时间:68

最大曝光时间:16328

步骤 1:当光线最亮时、当摄像机打开时、曝光值将自动调整为正确的值。 此时、暴露值非常小 (106)

步骤  2:当光线逐渐变暗时、曝光值将增加到最大值 (16328)

第  3 步:当光线逐渐调整到最亮时,曝光值会降低,但仍然相对较大 (978)

下面是 gsttiovxisp.c 中的代码

static int32_t
get_imx219_ae_dyn_params(IssAeDynamicParams *p_ae_dynPrms)
{
  int32_t status = -1;
  uint8_t count = 0;

  g_return_val_if_fail(p_ae_dynPrms, status);

  p_ae_dynPrms->targetBrightnessRange.min = 20;
  p_ae_dynPrms->targetBrightnessRange.max = 60;
  p_ae_dynPrms->targetBrightness = 30;
  p_ae_dynPrms->threshold = 1;
  p_ae_dynPrms->enableBlc = 1;
  p_ae_dynPrms->exposureTimeStepSize = 1;


  p_ae_dynPrms->exposureTimeRange[count].min = 68;  
  p_ae_dynPrms->exposureTimeRange[count].max = 16328; 
  p_ae_dynPrms->analogGainRange[count].min = 1024;   
  p_ae_dynPrms->analogGainRange[count].max = 1024;   
  p_ae_dynPrms->digitalGainRange[count].min = 1024;    
  p_ae_dynPrms->digitalGainRange[count].max = 1024;
  count++;


  p_ae_dynPrms->exposureTimeRange[count].min = 16328; 
  p_ae_dynPrms->exposureTimeRange[count].max = 16328;
  p_ae_dynPrms->analogGainRange[count].min = 1024;
  p_ae_dynPrms->analogGainRange[count].max = 15872; 
  p_ae_dynPrms->digitalGainRange[count].min = 1024; 
  p_ae_dynPrms->digitalGainRange[count].max = 15872;
  count++;


  p_ae_dynPrms->numAeDynParams = count;
  status = 0;
  return status;
}

此致

Meng

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    您好、

    您能否确认您使用的是 Linux 还是 MCU+、RTOS、裸机域?

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    您好 Varun

    我使用的是采用 Linux 系统的 Am62A7 开发板

    此致

    Meng