Java Utililty Methods BufferedImage Color Set

List of utility methods to do BufferedImage Color Set

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Description

The list of methods to do BufferedImage Color Set are organized into topic(s).

Method

BufferedImagechangeBrightness(BufferedImage image, int offset)
Muda o brilho da imagem de acordo com o offset 
float factor = 1.4f;
RescaleOp op = new RescaleOp(factor, offset, null);
BufferedImage brighter = op.filter(image, null);
return brighter;
BufferedImagechangeColor(BufferedImage image, Color color, Color replacement_color)
change Color 
BufferedImage dimg = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_ARGB);
Graphics2D g = dimg.createGraphics();
g.setComposite(AlphaComposite.Src);
g.drawImage(image, null, 0, 0);
g.dispose();
for (int i = 0; i < dimg.getHeight(); i++) {
    for (int j = 0; j < dimg.getWidth(); j++) {
        if (dimg.getRGB(j, i) == color.getRGB()) {
...
BufferedImagechangeColor(BufferedImage image, Color replacement)
Changes color of image's border to specified color. 
if (replacement == null) {
    return changeColor(image, COLOR_TO_REPLACE, TRANSPARENT_COLOR);
} else {
    return changeColor(image, COLOR_TO_REPLACE, replacement);
BufferedImagechangeColor(BufferedImage image, String hexval)
Changes the foreground colors to the color equivalent to the given hex value 
int red = Integer.valueOf(hexval.substring(0, 2), 16);
int green = Integer.valueOf(hexval.substring(2, 4), 16);
int blue = Integer.valueOf(hexval.substring(4, 6), 16);
int RGBval = red;
RGBval = (RGBval << 8) + green;
RGBval = (RGBval << 8) + blue;
RGBval = RGBval + Color.BLACK.getRGB();
for (int w = 0; w < image.getWidth(); w++) {
...
voidchangeRGBSaturation(final BufferedImage image, final double s)
Changes the color saturation of the given RGB image. 
double RW = 0.3086;
double RG = 0.6084;
double RB = 0.0820;
final double a = (1 - s) * RW + s;
final double b = (1 - s) * RW;
final double c = (1 - s) * RW;
final double d = (1 - s) * RG;
final double e = (1 - s) * RG + s;
...
BufferedImagechangeToTypeIntRGB(BufferedImage image)
change To Type Int RGB 
BufferedImage output = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_RGB);
for (int y = 0; y < image.getHeight(); y++)
    for (int x = 0; x < image.getWidth(); x++)
        output.setRGB(x, y, image.getRGB(x, y));
return output;
BufferedImagechangeTranslucentImage(BufferedImage img, float transperancy)
Change a image with a certain transparency. 
bimg = new BufferedImage(img.getWidth(), img.getHeight(), BufferedImage.TRANSLUCENT);
g2 = bimg.createGraphics();
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, transperancy));
g2.drawImage(img, null, 0, 0);
g2.dispose();
return bimg;