Can we adjust LCD Panel contrast, brightnessa, and gamma?

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Can we adjust LCD Panel contrast, brightnessa, and gamma?

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yaolinchang
Contributor I

Hi All,

      Can we adjust LCD Panel contrast, brightness, and gamma?

If yes, where can we adjust contrast value?

Thanks,

Best Regards,

Yao

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi YaoLin

this may be performed by  IPU CSC Image Converter (IC) color conversion, 

using formula

Y’=Y*k + b

Cb’= (Cb-128)*k+128 = k*cb+128(1-k)

Cr’= (Cr-128)*k+128 = k*Cr+128(1-k)

k represents the contrast factor while b represent the brightness level

examples can be found in

ipu-examples release notes - v0.1

In ips_csc.c, ..SDK\sdk\drivers\ipu\test\ips_csc.c i.MX 6Series Platform SDK

Best regards

igor

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yaolinchang
Contributor I

OK, thanks for your help.

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