Java Utililty Methods RGB Color Create

List of utility methods to do RGB Color Create

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Description

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

Method

ImagenewRGBImage(int[] rgb, int width, int height, boolean processAlpha)
new RGB Image 
if (rgb == null) {
    throw new NullPointerException();
if (width <= 0 || height <= 0) {
    throw new IllegalArgumentException();
BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
if (!processAlpha) {
...
StringRGB(float R, float G, float B)
Constructs a color given 3 RGB values. 
byte r = (byte) (255 * R);
byte g = (byte) (255 * G);
byte b = (byte) (255 * B);
return "#" + hd[r >> 4] + hd[r & 15] + hd[g >> 4] + hd[g & 15] + hd[b >> 4] + hd[b & 15];
intrgb(float rIn, float gIn, float bIn)
Makes an integer color from the given red, green, and blue float values 
return rgb(floor(rIn * 255.0F), floor(gIn * 255.0F), floor(bIn * 255.0F));
intrgb(int a, int r, int g, int b)
rgb 
int ret = 0;
ret |= (a & 0xff) << 24;
ret |= (r & 0xff) << 16;
ret |= (g & 0xff) << 8;
ret |= (b & 0xff) << 0;
return ret;
int[]rgb(int argb)
rgb 
return new int[] { (argb >> 16) & 0xFF, (argb >> 8) & 0xFF, argb & 0xFF };
int[]rgb(int pixel)
rgb 
int r = (pixel & 0xff0000) >> 16;
int g = (pixel & 0xff00) >> 8;
int b = (pixel & 0xff);
int[] m = { r, g, b };
return m;
intrgb(int r, int g, int b)
rgb 
return (r << 16) + (g << 8) + b;
intrgb(int red, int green, int blue)
rgb 
int color = 0;
color |= 0xFF000000;
color |= (red & 0xFF) << 16;
color |= (green & 0xFF) << 8;
color |= blue & 0xFF;
return color;
intRGB_GREEN(int rgb)
RGGREEN 
return (((rgb) >> 8) & 0xff);
doubleRGB_MSE(int[] rgb1, int[] rgb2)
Calculate the mean square error of the two RGB data 
if (rgb1.length != rgb2.length)
    throw new RuntimeException("The images need to have the same number of pixels");
double mse = 0;
for (int i = 0; i < rgb1.length; i++) {
    int a = rgb1[i];
    int b = rgb2[i];
    mse += sqr((a & 0xff) - (b & 0xff));
    mse += sqr(((a >> 8) & 0xff) - ((b >> 8) & 0xff));
...