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ADV7181B video decoder-facing color issue

Hi ,

Im working on PAL to VGA conversion, Im using  adv7181 Multi-format SDTV video decoder. Im facing  color problem (getting only black and white display)

Im capturing the picture though camera and  this PAL video is given to adv7181b,Im getting  VGA display without color.

is there any color related register configuration i need to do to solve this color issue ?

  

Can u please help me to resolve this issue.

Thanks

FPGA Engineer

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  • Hi ,

    Thanks for the reply .

    Actually we are using FPGA in this project and whatever output coming from ADV7181B video decoder is input to FPGA and we will convert interlaced format to prograssive.

    We initialized the video decoder as per attached file and i compared it with the file you sent (ADV7181C_ADV7181C@_ADV7341-VER.3.2c Refered "##CP 525p/625p##"). Wherever mismatch found, i made it as per in your file.

    But there is no improvement in color.

    Note :  If we use test pattern (Color Bars)  instead of vedio decoder input,We will get proper color display. So there is no problem with FPGA as i think.

    Please kindly help me to solve the issue.

    Thanks & Regards

    Preeti

Reply
  • Hi ,

    Thanks for the reply .

    Actually we are using FPGA in this project and whatever output coming from ADV7181B video decoder is input to FPGA and we will convert interlaced format to prograssive.

    We initialized the video decoder as per attached file and i compared it with the file you sent (ADV7181C_ADV7181C@_ADV7341-VER.3.2c Refered "##CP 525p/625p##"). Wherever mismatch found, i made it as per in your file.

    But there is no improvement in color.

    Note :  If we use test pattern (Color Bars)  instead of vedio decoder input,We will get proper color display. So there is no problem with FPGA as i think.

    Please kindly help me to solve the issue.

    Thanks & Regards

    Preeti

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