Example usage for javax.swing GrayFilter GrayFilter

Introduction

In this page you can find the example usage for javax.swing GrayFilter GrayFilter.

Prototype

public GrayFilter(boolean b, int p) 

Source Link

Document

Constructs a GrayFilter object that filters a color image to a grayscale image.

Usage

From source file:org.mbari.aved.ui.classifier.ClassModelListRenderer.java

/**
 * Converts and image into gray scale if the color space is grayscale
 * TODO: convert to whatever color space is required here, not just gray
 * @param image//  w w  w  .  ja  va  2s  .c o m
 * @param colorSpace
 * @return
 */
public static ImageIcon convertImageIcon(Image image, ColorSpace colorSpace) {

    // Convert to gray if in that color space. Images
    // are actually stored in color but converted to gray
    // in the classifier. Display them as GRAY to avoid
    // confusion as the classifier can only work in one
    // color space at a time, e.g. classes in different
    // color spaces cannot be mixed
    if (colorSpace != null && colorSpace.equals(ColorSpace.GRAY)) {

        // This isn't necessarily how the image is rendered in the Matlab
        // code, but it makes it easier to see the thumbnails
        ImageFilter filter = new GrayFilter(true, 50);
        ImageProducer prod;

        prod = new FilteredImageSource(image.getSource(), filter);

        Image grayScale = Toolkit.getDefaultToolkit().createImage(prod);

        return new ImageIcon(grayScale);
    } else {
        return new ImageIcon(image);
    }
}

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From source file:util.ui.PictureAreaIcon.java

public void paintIcon(final Component c, Graphics g, int x, int y) {
    if (mScaledIcon == null) {
        return;//from  www  .j  a  v  a 2  s .com
    }

    y += 2;

    Color color = g.getColor();

    if (!colorsInEqualRange(c.getBackground(), c.getForeground()) && !mProgram.isExpired()) {
        g.setColor(c.getBackground());
        g.fillRect(x, y, getIconWidth(), getIconHeight() - 2);
    }

    g.setColor(color);
    g.drawRect(x, y, getIconWidth() - 1, getIconHeight() - 3);

    y += 3;
    x += 3;

    if (mIsGrayFilter && !mIsExpired && mProgram.isExpired()) {
        ImageFilter filter = new GrayFilter(true, 60);
        mScaledIcon
                .setImage(c.createImage(new FilteredImageSource(mScaledIcon.getImage().getSource(), filter)));
        mIsExpired = true;
    }

    if (c.getForeground().getAlpha() != 255) {
        ImageFilter filter = new RGBImageFilter() {
            public int filterRGB(int x, int y, int rgb) {
                if ((rgb & 0xff000000) != 0) {
                    return (rgb & 0xffffff) | (c.getForeground().getAlpha() << 24);
                }
                return rgb;
            }
        };

        mScaledIcon
                .setImage(c.createImage(new FilteredImageSource(mScaledIcon.getImage().getSource(), filter)));
    }

    mScaledIcon.paintIcon(c, g, x, y);

    /*
    if(!mProgram.isExpired()) {
      g.setColor(color);
    } else {
      g.setColor(color);
    }
    */
    mCopyrightText.paintIcon(null, g, x, y + mScaledIcon.getIconHeight());
    if (mDescriptionLines > 0 && mDescriptionText != null) {
        mDescriptionText.paintIcon(null, g, x,
                y + mScaledIcon.getIconHeight() + mCopyrightText.getIconHeight() + 1);
    }
    g.setColor(color);
}

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