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OV7725 displays colored lines

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rp0777

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Hi,

I'm running into this one issue which I'm not sure where to start fixing. I'm seeing lots of colored lines with CMOS sensor, OV7725, images attached. This issue is most obvious when in low light condition. When there's enough light, the lines aren't so obvious and the images look clear. This problem occurs with OV9650 sensor as well.

Any ideas what the problem might be? Is it related to the schematic, settings for the sensor, driver, encoder, or even lens?

Many thanks.

 

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