I am trying histogram equalization but its giving me the same image as the input.
It seems like histogram equalization is having no impact. Can anyone tell where am I going wrong?
private static Mat adjustBrightnessContrast(Mat srcImage){
Mat filterImage = srcImage.clone();
Imgproc.cvtColor(srcImage,filterImage,Imgproc.COLOR_BGR2YCrCb);
java.util.List filterImageList = new ArrayList(3);
Core.split(filterImage,filterImageList);
Mat luminance = filterImageList.get(0);
Imgproc.equalizeHist(luminance,luminance);
filterImageList.set(0,luminance);
Core.merge(filterImageList,srcImage);
Imgproc.cvtColor(filterImage,srcImage, Imgproc.COLOR_YCrCb2BGR);
return srcImage;
}
What I have done is converted the image from BGA to YCrCb format, and then performed histogram equalization on the first channel that is 0, after converting the image to `list` format.
Then the Mat format I got after implement hist. eq. I replace the `list` with it. And finally `merge` the list with the sourceImage.
But I am getting the same output as input.
I am trying on this image as ::
PS : I think I am doing some mistake in color part of the conversion as GRAYSCALED images worked properly.
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