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PROCESSOR-SDK-AM62A: DCC debugging tool to debug related problems

Shine
Genius 13655 points
Part Number: PROCESSOR-SDK-AM62A

Hello Champs,

1.Auto Exposure
get_imx390_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 = 40;
p_ae_dynPrms->targetBrightnessRange.max = 50;
p_ae_dynPrms->targetBrightness = 45;

p_ae_dynPrms->threshold = 1;
p_ae_dynPrms->enableBlc = 1;
p_ae_dynPrms->exposureTimeStepSize = 1;

p_ae_dynPrms->exposureTimeRange[count].min = 100;
p_ae_dynPrms->exposureTimeRange[count].max = 33333;

p_ae_dynPrms->analogGainRange[count].min = 1024;
p_ae_dynPrms->analogGainRange[count].max = 8192;
p_ae_dynPrms->digitalGainRange[count].min = 256;
p_ae_dynPrms->digitalGainRange[count].max = 256;
count++;

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


Issue:
i、There is only one set of targetbrightness, is the targetbrightness the same in different time scenarios reasonable?
ii、If 60FPS is required, what should be the exposure time? How is the maximum and minimum exposure time determined?
2.Color depth supported by DCC

Issue:
i、DCC userguide Only the raw10 and raw12 images can be used for debugging？
ii、The current DCC tuning tool color depth can be selected 10/12/14/16bits per pixel, is 14/16bit raw image can also be used for debugging?



Thanks
Regards
Shine

  • 0
    TI__Intellectual 1080 points

    Hi Shine,

    Shine said:
    There is only one set of targetbrightness, is the targetbrightness the same in different time scenarios reasonable?

    To set the target brightness range:

    • [targetBrightness - threshold, targetBrightness + threshold]
    Shine said:
    If 60FPS is required, what should be the exposure time? How is the maximum and minimum exposure time determined?

    You may refer to the driver source code for the minimum and maximum exposure time.

    Shine said:
    DCC userguide Only the raw10 and raw12 images can be used for debugging？

    I am not very familiar in using the tool to debug, do you have any comments on this?

  • +1 in reply to Chau Le
    TI__Guru 59240 points
    Shine said:
    i、There is only one set of targetbrightness, is the targetbrightness the same in different time scenarios reasonable?

    For real applications, AE target could possibly vary, but that seems rare as far as I know.

    Shine said:
    ii、If 60FPS is required, what should be the exposure time? How is the maximum and minimum exposure time determined?

    It depends on the application requirements and sensor.
    For 60fps, the maximum exposure time can be up to 16.66ms.

    Shine said:
    i、DCC userguide Only the raw10 and raw12 images can be used for debugging？
    ii、The current DCC tuning tool color depth can be selected 10/12/14/16bits per pixel, is 14/16bit raw image can also be used for debugging?

    I am not sure what you mean by debugging here.

    Most tuning tool plugins may support up to 16-bit input raw images.

  • 0 in reply to Gang Hua
    TI__Genius 13655 points

    Hi Le&Hua,

    Thank you very much for your great support.

    For the problem of Color depth, For example, when using 16bit raw plug_ins AWB operation, A pop-up window prompts:

    “WARNING:This image is overexposed.You may get wrong tuning valuss.Consider discarding this image and capturing it again with different setting.



    Thanks
    Regards
    Shine

  • 0 in reply to Shine
    TI__Guru 59240 points
    Shine said:
    when using 16bit raw plug_ins AWB operation,

    Are your 16-bit raw images coming output your sensor directly?

    Is your sensor output in 16-bit linear format to AM62A?

  • 0 in reply to Gang Hua
    Prodigy 40 points

    I am very sorry for not replying to you for a long time, because there are some problems with my account login.

    I have solved the error problem, because I use 16bit wdr raw, and the sensor directly produces 12bit linear raw.

    Thanks

  • 0 in reply to TS_Wangqiang
    TI__Guru 59240 points

    Thanks for the update and we will close this thread!