Java Utililty Methods RGB Color Convert To

List of utility methods to do RGB Color Convert To

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Description

The list of methods to do RGB Color Convert To are organized into topic(s).

Method

intrgbaToColor(int r, int g, int b, int a)
rgba To Color 
return ((a << 24) & 0xFF000000) | ((r << 16) & 0xFF0000) | ((g << 8) & 0xFF00) | (b & 0xFF);
StringrgbaToHex(String color)
rgba To Hex 
if (isHexColor(color)) {
    return color;
String f = color.substring("rgba(".length());
int l = f.lastIndexOf(",");
if (l == -1) {
    return color;
String t = f.substring(0, l);
String[] rgb = t.split(",");
int r = Integer.parseInt(rgb[0], 10);
int g = Integer.parseInt(rgb[1], 10);
int b = Integer.parseInt(rgb[2], 10);
String rColor = Integer.toHexString(r);
if (rColor.length() < 2) {
    rColor = "0" + r;
String gColor = Integer.toHexString(g);
if (gColor.length() < 2) {
    gColor = "0" + g;
String bColor = Integer.toHexString(b);
if (bColor.length() < 2) {
    bColor = "0" + b;
return "#" + rColor + gColor + bColor;
intRGBAtoI(byte r, byte g, byte b, byte a)
RGB Ato I 
return (((a & 0xff) << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | b);
StringrgbBitfieldToString(int rgb)
Extracts the red green and blue portions as of a pixel and returns them as String. 
return getRed(rgb) + " " + getGreen(rgb) + " " + getBlue(rgb);
byte[]rgbToBgr(final byte[] pixels)
Convert an image data array in RGB order to BGR or vice versa. 
final byte[] pixels_publish = new byte[pixels.length];
int idx = 0;
for (int i = 0; i < pixels.length / 3; i++) {
    pixels_publish[idx] = pixels[idx + 2];
    pixels_publish[idx + 1] = pixels[idx + 1];
    pixels_publish[idx + 2] = pixels[idx];
    idx += 3;
return pixels_publish;
StringRGBtoBGR(String color)
Converts RGB (ARBG) color to BGR (ABGR). 
if (color.length() == 6) {
    color = "FF" + color;
if (color.length() == 8) {
    return color.substring(0, 2) + color.substring(6, 8) + color.substring(4, 6) + color.substring(2, 4);
return color;
booleanrgbToBlackWhite(int pix, int threshold)
rgb To Black White 
final int r = (pix >> 16) & 0xff;
final int g = (pix >> 8) & 0xff;
final int b = (pix >> 0) & 0xff;
final int intensity = ((r * 306) + (g * 601) + (b * 117)) >> 10;
return (intensity > threshold);
intrgbToColor(int r, int g, int b)
rgb To Color 
return argbToColor(255, r, g, b);
intrgbToDecimal(int r, int g, int b)
rgb To Decimal 
return b + 256 * g + 65536 * r;
intrgbToGray(int colorIn)
Change an RGB color to a gray value. 
int red = (colorIn & RED_MASK) >> RED_OFFSET; 
int green = (colorIn & GREEN_MASK) >> GREEN_OFFSET; 
int blue = colorIn & BLUE_MASK; 
double brightness = 0.3 * red + 0.59 * green + 0.11 * blue;
return (int) brightness;