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

intconvertRgb888To565(int rgb888)
Converts an RGB 888 color to RGB 565 color space. 
return ((rgb888 & 0xf80000) >> 8) | ((rgb888 & 0xfc00) >> 5) | ((rgb888 & 0xf8) >> 3);
intconvertRgbaToArgb(int rgba)
Returns the converted value. 
return (rgba >>> 8) | (rgba << (32 - 8));
byte[]convertRgbToByteArray(int[] rgb)
Converts the given int[] RGB array into a byte[] array without preserving the alpa channel (each RGB pixel is in the format 0xAARRGGBB). 
return convertRgbToByteArray(rgb, 0, rgb.length);
float[]convertRGBtoHSL(int r, int g, int b)
Converts the components of a color, as specified by the default RGB model, to an equivalent set of values for hue, saturation, and lightness that are the three components of the HSL model. 
float varR = (r / 255f);
float varG = (g / 255f);
float varB = (b / 255f);
float varMin = Math.min(varR, Math.min(varG, varB)); 
float varMax = Math.max(varR, Math.max(varG, varB)); 
float delMax = varMax - varMin; 
float h = 0;
float s = 0;
...
voidconvertRGBtoHSV(float[] rgb, float[] hsv)
Change an RGB color to HSV color. 
convertRGBtoHSV(rgb[0], rgb[1], rgb[2], hsv);
voidconvertRGBtoYIQ(float[] rgb, float[] yiq)
Change an RGB color to YIQ (JPEG) color. 
float r = rgb[0];
float g = rgb[1];
float b = rgb[2];
yiq[0] = (0.299900f * r) + (0.587000f * g) + (0.114000f * b);
yiq[1] = (0.595716f * r) - (0.274453f * g) - (0.321264f * b);
yiq[2] = (0.211456f * r) - (0.522591f * g) + (0.311350f * b);
float[]rgb24FloatArray(float[] array, int rgb24)
rgb Float Array 
assert array.length == 3;
array[0] = (float) (rgb24 >> 16 & 255) / 255.0F;
array[1] = (float) (rgb24 >> 8 & 255) / 255.0F;
array[2] = (float) (rgb24 & 255) / 255.0F;
return array;
voidrgb2arr(final int color, final int[] argbarr)
rgbarr 
argbarr[0] = (color & 0x00ff0000) >> 16;
argbarr[1] = (color & 0x0000ff00) >> 8;
argbarr[2] = (color & 0x000000ff);
byte[]rgb2bilevel(int[] rgb)
rgbbilevel 
byte[] pixels = new byte[rgb.length];
int sum = 0;
for (int i = 0; i < rgb.length; i++) {
    if ((rgb[i] >>> 24) < 0x80)
        pixels[i] = (byte) 0xff; 
    else
        pixels[i] = (byte) (((rgb[i] >> 16) & 0xff) * 0.2126 + ((rgb[i] >> 8) & 0xff) * 0.7152
                + (rgb[i] & 0xff) * 0.0722);
...
doublergb2gray(int r, int g, int b)
rgbgray 
return 0.3 * r + 0.59 * g + 0.11 * b;