Java Image Filters 是由 Jhlabs 开发的一组用来处理 Java 图像的类库，提供各种常用的图像处理效果，例如反转色、扭曲、水波纹、凹凸、黑白效果等等数十种效果，如下图所示，更多的效果请看其网站首页：
ChannelMixFilter - Mixes the RGB channels
ContrastFilter - Adjusts brightness and contrast
CurvesFilter - Apply adjustment curves to an image
DiffusionFilter - Error-diffusion dithering
DitherFilter - Ordered dithering
ExposureFilter - Change the exposure of an image
GainFilter - Adjusts gain and bias- GammaFilter - Adjusts image gamma
GrayFilter - Grays out an image
GrayscaleFilter - Converts to grayscale
HSBAdjustFilter - Adjusts hue, saturation and brightness
InvertAlphaFilter - Inverts the alpha channel
InvertFilter - Inverts image colors- LevelsFilter - Adjust image levels
LookupFilter - Change image colors with a lookup table
MapColorsFilter - Replace a color
MaskFilter - Channel masking
PosterizeFilter - Posterization
QuantizeFilter - Quantize an image to 256 colors for, say, GIF export
RescaleFilter - Multiplies colors by a scaling factor
RGBAdjustFilter - Adjusts red, green and blue levels
SolarizeFilter - Solarization- ThresholdFilter - Thresholding
TritoneFilter - Create a tri-tone image
