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

float[][]rgb2grayscale(int[] rgb, int imageWidth, int imageHeight)
rgbgrayscale 
float[][] grayscale = new float[imageHeight][imageWidth];
for (int i = 0, index = 0; i < imageHeight; i++) {
    for (int j = 0; j < imageWidth; j++, index++) {
        grayscale[i][j] = (float) (((rgb[index] >> 16) & 0xff) * 0.2126
                + ((rgb[index] >> 8) & 0xff) * 0.7152 + (rgb[index] & 0xff) * 0.0722 - 128.0);
return grayscale;
...
byte[]rgb2grayscaleA(int[] rgb)
rgbgrayscale A 
byte[] grayscale = new byte[rgb.length << 1];
for (int i = 0, j = 0; i < rgb.length; i++) {
    grayscale[j++] = (byte) (((rgb[i] >> 16) & 0xff) * 0.2126 + ((rgb[i] >> 8) & 0xff) * 0.7152
            + (rgb[i] & 0xff) * 0.0722);
    grayscale[j++] = (byte) ((rgb[i] >> 24) & 0xff);
return grayscale;
Stringrgb2Hex(int rgb)
rgb Hex 
StringBuffer sb = new StringBuffer();
for (int i = 5; i >= 0; i--) {
    int shift = i * 4;
    int n = (rgb & (15 << shift)) >> shift;
    sb.append(HEX[n % 16]);
return sb.toString();
Stringrgb2hex(int[] rgb)
rgbhex 
return toHex(rgb[0]) + toHex(rgb[1]) + toHex(rgb[2]);
double[]rgb2hsl(int colour)
rgbhsl 
return rgb2hsl(red(colour), green(colour), blue(colour));
voidRGB2HSL(int red, int green, int blue, float[] hslvals)
RGBHSL 
float r = red / 255.f;
float g = green / 255.f;
float b = blue / 255.f;
float max = Math.max(Math.max(r, g), b);
float min = Math.min(Math.min(r, g), b);
float c = max - min;
float h_ = 0.f;
if (c == 0) {
...
int[]rgb2hsl(int[] rgb)
rgbhsl 
double max = Math.max(Math.max(rgb[0], rgb[1]), rgb[2]); 
double delta = max - Math.min(Math.min(rgb[0], rgb[1]), rgb[2]); 
double h = 0;
int s = 0;
int l = (int) Math.round(max * 100d / 255d); 
if (max != 0) {
    s = (int) Math.round(delta * 100d / max); 
    if (max == rgb[0]) {
...
float[]rgb2hsv(int r, int g, int b)
rgbhsv 
float r1 = ((float) r) / 255;
float g1 = ((float) g) / 255;
float b1 = ((float) b) / 255;
float cMax = max(r1, g1, b1);
float cMin = min(r1, g1, b1);
float delta = cMax - cMin;
float h = 0, s = 0, v = 0;
if (delta == 0) {
...
intrgb2int(final int[] color)
rgbint 
return (color[0] << 16) + (color[1] << 8) + color[2];
intrgb2intval(int r, int g, int b)
rgbintval 
int temp = 0xff000000 | (r << 16) | (g << 8) | b;
return temp;