JMagick - How to change brightness and contrast?

Question

我想通过使用jmagick更改图像的亮度和对比度。

Answer 1

ImageInfo i = new ImageInfo("digits.jpg");
MagickImage m = new MagickImage(i);
//Modulates the hue, saturation, and brightness of an image.
m.modulateImage("70,100,100");