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图像增益问题



想请教如果在已经转换成YUV420SP格式后

若还想对图像给予一个增益,有没有哪一个Link可以帮我做到类似的功能?

我的图像算法在前端所套用的dGain不能太大,所以需要在后端再套用一级增益

(目前所用的平台是DM388 IPNCRDK 3.8)