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android change brightness and contrast of image

Hello.I'm new by opencv and I do not know programming with c or c++,so excuse me if my question is weak and it's answer is obvious.Of course,before I ask this question,did a lot searching in Google,opencv Q\A and stackoverflow,but unfortunately I do not found answer.

I have to change brightness and contrast of a bitmap.I know how to get a Mat form bitmap in android.But I could not find any method in Imageproc class to change contrast and brightness of bitmap.Is there any way (without using native codes) to do those processes?

android change brightness and contrast of image

Hello.I'm new by opencv and I do not know programming with c or c++,so excuse me if my question is weak and it's answer is obvious.Of course,before I ask this question,did a lot searching in Google,opencv Q\A and stackoverflow,but unfortunately I do not found answer.

I have to change brightness and contrast of a bitmap.I know how to get a Mat form bitmap in android.But I could not find any method in Imageproc class to change contrast and brightness of bitmap.Is there any way in java (without using native codes) to do those processes?