package javafx8image; import javafx.application.Application; import javafx.beans.value.ChangeListener; import javafx.beans.value.ObservableValue; import javafx.scene.Scene; import javafx.scene.control.Label; import javafx.scene.control.Slider; import javafx.scene.image.Image; import javafx.scene.image.ImageView; import javafx.scene.image.PixelReader; import javafx.scene.image.PixelWriter; import javafx.scene.image.WritableImage; import javafx.scene.layout.StackPane; import javafx.scene.layout.VBox; import javafx.scene.paint.Color; import javafx.stage.Stage; /** * * @web http://java-buddy.blogspot.com/ */ public class JavaFX8Image extends Application { Image imageSrc; Slider sliderHueShift; Slider sliderSaturationFactor; Slider sliderBrightnessFactor; Slider sliderOpacityFactor; ImageView imageViewDest; @Override public void start(Stage primaryStage) { imageSrc = new Image("http://goo.gl/kYEQl"); sliderHueShift = new Slider(0, 360, 0); sliderSaturationFactor = new Slider(0, 1, 1); sliderBrightnessFactor = new Slider(0, 1, 1); sliderOpacityFactor = new Slider(0, 1, 1); sliderHueShift.valueProperty().addListener(listener); sliderSaturationFactor.valueProperty().addListener(listener); sliderBrightnessFactor.valueProperty().addListener(listener); sliderOpacityFactor.valueProperty().addListener(listener); imageViewDest = new ImageView(); WritableImage imageDest = copyImage(imageSrc, sliderHueShift.getValue(), sliderSaturationFactor.getValue(), sliderBrightnessFactor.getValue(), sliderOpacityFactor.getValue()); imageViewDest.setImage(imageDest); VBox vBox = new VBox(); vBox.getChildren().addAll( new Label("hueShift"), sliderHueShift, new Label("saturationFactor"), sliderSaturationFactor, new Label("brightnessFactor"), sliderBrightnessFactor, new Label("opacityFactor"), sliderOpacityFactor, imageViewDest); StackPane root = new StackPane(); root.getChildren().addAll(vBox); Scene scene = new Scene(root, 640, 360); primaryStage.setTitle("java-buddy.blogspot.com"); primaryStage.setScene(scene); primaryStage.show(); } public static void main(String[] args) { launch(args); } ChangeListener<Number> listener = new ChangeListener<Number>(){ @Override public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) { WritableImage imageDest = copyImage(imageSrc, sliderHueShift.getValue(), sliderSaturationFactor.getValue(), sliderBrightnessFactor.getValue(), sliderOpacityFactor.getValue()); imageViewDest.setImage(imageDest); } }; private WritableImage copyImage( Image src, double hueShift, double saturationFactor, double brightnessFactor, double opacityFactor) { PixelReader pixelReader = src.getPixelReader(); WritableImage dest = new WritableImage( (int) src.getWidth(), (int) src.getHeight()); PixelWriter pixelWriter = dest.getPixelWriter(); for (int y = 0; y < src.getHeight(); y++) { for (int x = 0; x < src.getWidth(); x++) { Color color = pixelReader.getColor(x, y); color = color.deriveColor( hueShift, saturationFactor, brightnessFactor, opacityFactor); pixelWriter.setColor(x, y, color); } } return dest; } }
Thursday, June 19, 2014
Color.deriveColor() example
Example of setting of hueShift, saturationFactor, brightnessFactor, opacityFactor in Color.deriveColor().
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